Description: ACTINOLITE. ALBITE. (Reported by J. Griesbach, 1975). ANTHOPHYLLITE. Creamy gray veinlets in serpentinite float. ANTIGORITE. (G. T. Faust, 1967). Constitutes bulk of serpentinite as interlocking microscopic laths and plates or as tough, brittle, dark

References:

Jack Nelson, Compiler from two references and personal communications, May 2000 (See descriptive notes for quarry for reference citations)>

ⓘ Albite

Formula: Na(AlSi₃O₈)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Betts, John (n.d.) John Betts website listing.

ⓘ Ankerite

Formula: Ca(Fe²⁺,Mg)(CO₃)₂

Locality: Huddlestone Mine, Rockville, Montgomery County, Maryland, USA

References:

Rocks & Min.:11:8 & 121

14:305.

AM. MINERALOGIST, V. 18, 312-313.

ⓘ Anthophyllite

Formula: ◻Mg₂Mg₅(Si₈O₂₂)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Bernstein, Lawrence R. (1980) Minerals of the Washington, D.C. Area - Issue 5 of Educational series, Maryland Geological Survey. Department of Natural Resources, Maryland Geological Survey. p.1-148.

ⓘ Antigorite

Formula: Mg₃(Si₂O₅)(OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Aragonite

Formula: CaCO₃

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Azurite

Formula: Cu₃(CO₃)₂(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Biotite' ?

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Bornite

Formula: Cu₅FeS₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Brochantite

Formula: Cu₄(SO₄)(OH)₆

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Brucite

Formula: Mg(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Calcite

Formula: CaCO₃

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Chabazite'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, F. (2014) Fred Parker Updates his 2005 Hunting Hill Mineralogical Record Article: Mineral Bliss website, http://mineralbliss.blogspot.com/2014/01/fred-parker-updates-his-2005-hunting.html.

ⓘ Chalcocite

Formula: Cu₂S

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Jack Nelson, Compiler from two references and personal communications, May 2000 (See descriptive notes for quarry for reference citations)>

ⓘ Chalcopyrite

Formula: CuFeS₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Chlorite Group'

Locality: Huddlestone Mine, Rockville, Montgomery County, Maryland, USA

References:

Rocks & Min.:11:8 & 121

14:305.

AM. MINERALOGIST, V. 18, 312-313.

ⓘ Chromite ?

Formula: Fe²⁺Cr³⁺₂O₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Chromite-Magnesiochromite Series'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Pavel M. Kartashov - look https://www.mindat.org/mesg-821658.htmlIdentified by Pavel Kartashov: Inferred (explain how)

ⓘ Chrysocolla ?

Formula: Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Chrysotile

Formula: Mg₃(Si₂O₅)(OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

'Serpentinite and Rodingite in the Hunting Hill Quarry, Montgomery County, Maryland', Geological Survey Bulletin 1283, p.20

"Clinochrysotile forms veins 1/8 to 2 inches thick in serpentinite

the

largest vein strikes N. 50° W. and dips '25° NE. The mineral is ex-

tremely fine grained, pale grayish green to bluish green, massive,

waxy, and has an unctuous feel

it is hard and breaks with a conchoi-

dal fracture. The outer surfaces or contacts of the thickest vein are

mammillary or botryoidal

the clinochrysotile is bordered with calcite

and dolomite. According to Norman Page (oral commun., 1967), the

clinochrysotile probably formed well below 100° C., perhaps below

50° C. It appears to be the last serpentine mineral formed. Hostetler

erals probably are formed at temperatures below 100° C."

and Christ (1968) indicated that chrysotile and other serpentine min-

ⓘ Clinochlore

Formula: Mg₅Al(AlSi₃O₁₀)(OH)₈

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Clinochrysotile'

Formula: Mg₃(Si₂O₅)(OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

'Serpentinite and Rodingite in the Hunting Hill Quarry, Montgomery County, Maryland', Geological Survey Bulletin 1283, p.20

"Clinochrysotile forms veins 1/8 to 2 inches thick in serpentinite

the

largest vein strikes N. 50° W. and dips '25° NE. The mineral is ex-

tremely fine grained, pale grayish green to bluish green, massive,

waxy, and has an unctuous feel

it is hard and breaks with a conchoi-

dal fracture. The outer surfaces or contacts of the thickest vein are

mammillary or botryoidal

the clinochrysotile is bordered with calcite

and dolomite. According to Norman Page (oral commun., 1967), the

clinochrysotile probably formed well below 100° C., perhaps below

50° C. It appears to be the last serpentine mineral formed. Hostetler

erals probably are formed at temperatures below 100° C."

and Christ (1968) indicated that chrysotile and other serpentine min-

ⓘ Clinozoisite

Formula: (CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Coalingite

Formula: Mg₁₀Fe³⁺₂(OH)₂₄[CO₃] · 2H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Desautelsite

Formula: Mg₆Mn³⁺₂(OH)₁₆[CO₃] · 4H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ 'Deweylite'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Diopside

Formula: CaMgSi₂O₆

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Jack Nelson, Compiler from two references and personal communications, May 2000 (See descriptive notes for quarry for reference citations)>

ⓘ Diopside var. Chromium-bearing Diopside

Formula: Ca(Mg,Cr)Si₂O₆

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Dolomite

Formula: CaMg(CO₃)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Dravite

Formula: NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Erythrite

Formula: Co₃(AsO₄)₂ · 8H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Fayalite-Forsterite Series'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Fluorapatite

Formula: Ca₅(PO₄)₃F

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Galena

Formula: PbS

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Goethite

Formula: Fe³⁺O(OH)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Grossular

Formula: Ca₃Al₂(SiO₄)₃

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Betts, John (n.d.) John Betts website listing.

ⓘ Grossular var. Hibschite

Formula: Ca₃Al₂(SiO₄)_3-x(OH)_4x

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

ⓘ Hematite

Formula: Fe₂O₃

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Heulandite Subgroup'

Formula: (Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Huntite

Formula: CaMg₃(CO₃)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Hydromagnesite

Formula: Mg₅(CO₃)₄(OH)₂ · 4H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Ilmenite

Formula: Fe²⁺TiO₃

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Laumontite

Formula: CaAl₂Si₄O₁₂ · 4H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Limonite'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Lizardite

Formula: Mg₃(Si₂O₅)(OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Magnesio-hornblende

Formula: ◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Jonathan Harris Collection

ⓘ Magnesite

Formula: MgCO₃

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Malachite

Formula: Cu₂(CO₃)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ 'Manganese Oxides'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ 'Manganese Oxides var. Manganese Dendrites'

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Margarite

Formula: CaAl₂(Al₂Si₂O₁₀)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Mcguinnessite

Formula: (Mg,Cu)₂(CO₃)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Mesolite

Formula: Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Millerite

Formula: NiS

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Molybdenite

Formula: MoS₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Luetcke, Rolf (n.d.) Personal communication.

ⓘ Nacrite

Formula: Al₂(Si₂O₅)(OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Native Gold

Formula: Au

Localities:

Huddlestone Mine, Rockville, Montgomery County, Maryland, USA
Bogley Mine, Rockville, Montgomery County, Maryland, USA

ⓘ Native Palladium ?

Formula: (Pd,Pt)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Description: Traces reported by David Marcel Larrabee (1969) (No evidence presented that the native element mineral is present.)

References:

ⓘ Native Platinum ?

Formula: Pt

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Description: Traces reported by David Marcel Larrabee (1969) (No evidence presented that the native element mineral is present.)

References:

ⓘ Nimite

Formula: Ni₅Al(AlSi₃O₁₀)(OH)₈

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Omphacite

Formula: (Na_aCa_bFe²⁺_cMg_d)(Al_eFe³⁺_fFe²⁺_gMg_h)Si₂O₆

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

David Schoeberlein Collection

ⓘ Opal

Formula: SiO₂ · nH₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Pargasite

Formula: NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Pecoraite

Formula: Ni₃(Si₂O₅)(OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi₂]O₈

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Description: Analysed by Bart Cannon; see http://www.mindat.org/mesg-5-40618.html

References:

Jon Ertman collection

ⓘ Pokrovskite

Formula: Mg₂(CO₃)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Prehnite

Formula: Ca₂Al₂Si₃O₁₀(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Rocks & Minerals: 61: 347.

ⓘ Pyrite

Formula: FeS₂

Localities:

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
Huddlestone Mine, Rockville, Montgomery County, Maryland, USA

ⓘ Pyrrhotite

Formula: Fe_1-xS

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Quartz

Formula: SiO₂

Localities:

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
Huddlestone Mine, Rockville, Montgomery County, Maryland, USA

ⓘ Quartz var. Chalcedony

Formula: SiO₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Rutile

Formula: TiO₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Schorl

Formula: NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

Locality: Huddlestone Mine, Rockville, Montgomery County, Maryland, USA

References:

Rocks & Min.:11:8 & 121

14:305.

AM. MINERALOGIST, V. 18, 312-313.

ⓘ Scolecite

Formula: CaAl₂Si₃O₁₀ · 3H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Luetcke, Rolf (n.d.) Personal communication.

ⓘ Stellerite

Formula: Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Talc

Formula: Mg₃Si₄O₁₀(OH)₂

Localities:

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA
Huddlestone Mine, Rockville, Montgomery County, Maryland, USA

ⓘ Titanite

Formula: CaTiO(SiO₄)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ Tochilinite

Formula: Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Parker, Fred J. (2005) The minerals of the Hunting Hill quarry, Rockville, Maryland. The Mineralogical Record, 36 (5) 435-446

ⓘ 'Tourmaline'

Formula: AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Tremolite

Formula: ◻Ca₂Mg₅(Si₈O₂₂)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Vesuvianite

Formula: Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Xonotlite

Formula: Ca₆(Si₆O₁₇)(OH)₂

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Scovil, Jeffrey A. (1999) What's New in Minerals - Rochester Mineralogical Symposium 1999. The Mineralogical Record, 30 (6) 467pp.467-467

ⓘ Zoisite

Formula: (CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

ⓘ Zoisite var. Thulite

Formula: {Ca₂}{Al,Mn³⁺₃}(Si₂O₇)(SiO₄)O(OH)

Locality: Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

References:

Jack Nelson, Compiler from two references and personal communications, May 2000 (See descriptive notes for quarry for reference citations)>

Gallery:

◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂ⓘ Actinolite

Actinolite, etc.

Rockville, Montgomery County, Maryland, USA

Actinolite

Rockville, Montgomery County, Maryland, USA

Actinolite, etc.

Rockville, Montgomery County, Maryland, USA

Actinolite

Rockville, Montgomery County, Maryland, USA

Actinolite, etc.

Rockville, Montgomery County, Maryland, USA

Actinolite

Rockville, Montgomery County, Maryland, USA

CaCO₃ⓘ Aragonite

Aragonite, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Aragonite, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Aragonite, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Ca(Mg,Cr)Si₂O₆ⓘ Diopside var. Chromium-bearing Diopside

Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Chromium-bearing Diopside, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Mg₃(Si₂O₅)(OH)₄ⓘ Lizardite

Lizardite

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Lizardite

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Lizardite

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Fe²⁺Fe³⁺₂O₄ⓘ Magnetite

Magnetite, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Magnetite, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Magnetite, etc.

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

SiO₂ · nH₂Oⓘ Opal

Opal

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Opal

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Opal

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

◻Ca₂Mg₅(Si₈O₂₂)(OH)₂ⓘ Tremolite

Tremolite

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Tremolite

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

Tremolite

Hunting Hill Quarry, Rockville, Montgomery County, Maryland, USA

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Native Gold	1.AA.05	Au
ⓘ	Native Palladium ?	1.AF.10	(Pd,Pt)
ⓘ	Native Platinum ?	1.AF.10	Pt
Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Bornite	2.BA.15	Cu₅FeS₄
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
ⓘ	Millerite	2.CC.20	NiS
ⓘ	Galena	2.CD.10	PbS
ⓘ	Molybdenite	2.EA.30	MoS₂
ⓘ	Pyrite	2.EB.05a	FeS₂
ⓘ	Tochilinite	2.FD.35	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
Group 4 - Oxides and Hydroxides
ⓘ	Goethite	4.00.	Fe³⁺O(OH)
ⓘ	Chromite ?	4.BB.05	Fe²⁺Cr³⁺₂O₄
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Hematite	4.CB.05	Fe₂O₃
ⓘ	Ilmenite	4.CB.05	Fe²⁺TiO₃
ⓘ	Quartz var. Chalcedony	4.DA.05	SiO₂
ⓘ		4.DA.05	SiO₂
ⓘ	Opal	4.DA.10	SiO₂ · nH₂O
ⓘ	Rutile	4.DB.05	TiO₂
ⓘ	Brucite	4.FE.05	Mg(OH)₂
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Magnesite	5.AB.05	MgCO₃
ⓘ	Ankerite	5.AB.10	Ca(Fe²⁺,Mg)(CO₃)₂
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
ⓘ	Aragonite	5.AB.15	CaCO₃
ⓘ	Huntite	5.AB.25	CaMg₃(CO₃)₄
ⓘ	Azurite	5.BA.05	Cu₃(CO₃)₂(OH)₂
ⓘ	Malachite	5.BA.10	Cu₂(CO₃)(OH)₂
ⓘ	Mcguinnessite	5.BA.10	(Mg,Cu)₂(CO₃)(OH)₂
ⓘ	Pokrovskite	5.BA.10	Mg₂(CO₃)(OH)₂
ⓘ	Hydromagnesite	5.DA.05	Mg₅(CO₃)₄(OH)₂ · 4H₂O
ⓘ	Desautelsite	5.DA.50	Mg₆Mn³⁺₂(OH)₁₆[CO₃] · 4H₂O
ⓘ	Coalingite	5.DA.55	Mg₁₀Fe³⁺₂(OH)₂₄[CO₃] · 2H₂O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Brochantite	7.BB.25	Cu₄(SO₄)(OH)₆
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Fluorapatite	8.BN.05	Ca₅(PO₄)₃F
ⓘ	Erythrite	8.CE.40	Co₃(AsO₄)₂ · 8H₂O
Group 9 - Silicates
ⓘ	Chrysotile	9.00.	Mg₃(Si₂O₅)(OH)₄
ⓘ	Grossular	9.AD.25	Ca₃Al₂(SiO₄)₃
ⓘ	var. Hibschite	9.AD.25	Ca₃Al₂(SiO₄)_3-x(OH)_4x
ⓘ	Titanite	9.AG.15	CaTiO(SiO₄)
ⓘ	Clinozoisite	9.BG.05a	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Zoisite var. Thulite	9.BG.10	{Ca₂}{Al,Mn³⁺₃}(Si₂O₇)(SiO₄)O(OH)
ⓘ		9.BG.10	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
ⓘ	Vesuvianite	9.BG.35	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
ⓘ	Dravite	9.CK.05	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
ⓘ	Schorl	9.CK.05	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
ⓘ	Diopside var. Chromium-bearing Diopside	9.DA.15	Ca(Mg,Cr)Si₂O₆
ⓘ		9.DA.15	CaMgSi₂O₆
ⓘ	Omphacite	9.DA.20	(Na_aCa_bFe²⁺_cMg_d)(Al_eFe³⁺_fFe²⁺_gMg_h)Si₂O₆
ⓘ	Anthophyllite	9.DD.05	◻Mg₂Mg₅(Si₈O₂₂)(OH)₂
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
ⓘ	Magnesio-hornblende	9.DE.10	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
ⓘ	Tremolite	9.DE.10	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
ⓘ	Pargasite	9.DE.15	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
ⓘ	Xonotlite	9.DG.35	Ca₆(Si₆O₁₇)(OH)₂
ⓘ	Prehnite	9.DP.20	Ca₂Al₂Si₃O₁₀(OH)₂
ⓘ	Talc	9.EC.05	Mg₃Si₄O₁₀(OH)₂
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Margarite	9.EC.30	CaAl₂(Al₂Si₂O₁₀)(OH)₂
ⓘ	Clinochlore	9.EC.55	Mg₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	Nimite	9.EC.55	Ni₅Al(AlSi₃O₁₀)(OH)₈
ⓘ	'Clinochrysotile'	9.ED.	Mg₃(Si₂O₅)(OH)₄
ⓘ	Nacrite	9.ED.05	Al₂(Si₂O₅)(OH)₄
ⓘ	Antigorite	9.ED.15	Mg₃(Si₂O₅)(OH)₄
ⓘ	Lizardite	9.ED.15	Mg₃(Si₂O₅)(OH)₄
ⓘ	Pecoraite	9.ED.15	Ni₃(Si₂O₅)(OH)₄
ⓘ	Chrysocolla ?	9.ED.20	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Mesolite	9.GA.05	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
ⓘ	Scolecite	9.GA.05	CaAl₂Si₃O₁₀ · 3H₂O
ⓘ	Laumontite	9.GB.10	CaAl₂Si₄O₁₂ · 4H₂O
ⓘ	Stellerite	9.GE.15	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Unclassified
ⓘ	'Biotite' ?	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Chabazite'	-
ⓘ	'Chlorite Group'	-
ⓘ	'Deweylite'	-
ⓘ	'Heulandite Subgroup'	-	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
ⓘ	'Limonite'	-
ⓘ	'Tourmaline'	-	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
ⓘ	'Fayalite-Forsterite Series'	-
ⓘ	'Chromite-Magnesiochromite Series'	-
ⓘ	'Plagioclase'	-	(Na,Ca)[(Si,Al)AlSi₂]O₈
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄
ⓘ	'Manganese Oxides var. Manganese Dendrites'	-
ⓘ	''	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Anthophyllite	◻Mg₂Mg₅(Si₈O₂₂)(OH)₂
H	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
H	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
H	ⓘ Brucite	Mg(OH)₂
H	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
H	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
H	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Clinochrysotile	Mg₃(Si₂O₅)(OH)₄
H	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
H	ⓘ Coalingite	Mg₁₀Fe₂³⁺(OH)₂₄[CO₃] · 2H₂O
H	ⓘ Desautelsite	Mg₆Mn₂³⁺(OH)₁₆[CO₃] · 4H₂O
H	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
H	ⓘ Goethite	Fe³⁺O(OH)
H	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
H	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
H	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
H	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
H	ⓘ Lizardite	Mg₃(Si₂O₅)(OH)₄
H	ⓘ Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
H	ⓘ Malachite	Cu₂(CO₃)(OH)₂
H	ⓘ Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂
H	ⓘ Mcguinnessite	(Mg,Cu)₂(CO₃)(OH)₂
H	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Nacrite	Al₂(Si₂O₅)(OH)₄
H	ⓘ Nimite	Ni₅Al(AlSi₃O₁₀)(OH)₈
H	ⓘ Opal	SiO₂ · nH₂O
H	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
H	ⓘ Pecoraite	Ni₃(Si₂O₅)(OH)₄
H	ⓘ Pokrovskite	Mg₂(CO₃)(OH)₂
H	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
H	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
H	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
H	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
H	ⓘ Zoisite var. Thulite	{Ca₂}{Al,Mn₃³⁺}(Si₂O₇)(SiO₄)O(OH)
H	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
H	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
H	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
H	ⓘ Xonotlite	Ca₆(Si₆O₁₇)(OH)₂
H	ⓘ Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
B	Boron
B	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
B	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
B	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
C	Carbon
C	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
C	ⓘ Aragonite	CaCO₃
C	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
C	ⓘ Calcite	CaCO₃
C	ⓘ Coalingite	Mg₁₀Fe₂³⁺(OH)₂₄[CO₃] · 2H₂O
C	ⓘ Desautelsite	Mg₆Mn₂³⁺(OH)₁₆[CO₃] · 4H₂O
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Huntite	CaMg₃(CO₃)₄
C	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
C	ⓘ Magnesite	MgCO₃
C	ⓘ Malachite	Cu₂(CO₃)(OH)₂
C	ⓘ Mcguinnessite	(Mg,Cu)₂(CO₃)(OH)₂
C	ⓘ Pokrovskite	Mg₂(CO₃)(OH)₂
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
O	ⓘ Anthophyllite	◻Mg₂Mg₅(Si₈O₂₂)(OH)₂
O	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
O	ⓘ Aragonite	CaCO₃
O	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
O	ⓘ Brucite	Mg(OH)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Quartz var. Chalcedony	SiO₂
O	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
O	ⓘ Diopside var. Chromium-bearing Diopside	Ca(Mg,Cr)Si₂O₆
O	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
O	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
O	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Clinochrysotile	Mg₃(Si₂O₅)(OH)₄
O	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
O	ⓘ Coalingite	Mg₁₀Fe₂³⁺(OH)₂₄[CO₃] · 2H₂O
O	ⓘ Desautelsite	Mg₆Mn₂³⁺(OH)₁₆[CO₃] · 4H₂O
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
O	ⓘ Fluorapatite	Ca₅(PO₄)₃F
O	ⓘ Goethite	Fe³⁺O(OH)
O	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
O	ⓘ Hematite	Fe₂O₃
O	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
O	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
O	ⓘ Huntite	CaMg₃(CO₃)₄
O	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
O	ⓘ Ilmenite	Fe²⁺TiO₃
O	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
O	ⓘ Lizardite	Mg₃(Si₂O₅)(OH)₄
O	ⓘ Magnesite	MgCO₃
O	ⓘ Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Malachite	Cu₂(CO₃)(OH)₂
O	ⓘ Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂
O	ⓘ Mcguinnessite	(Mg,Cu)₂(CO₃)(OH)₂
O	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Nacrite	Al₂(Si₂O₅)(OH)₄
O	ⓘ Nimite	Ni₅Al(AlSi₃O₁₀)(OH)₈
O	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
O	ⓘ Opal	SiO₂ · nH₂O
O	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
O	ⓘ Pecoraite	Ni₃(Si₂O₅)(OH)₄
O	ⓘ Pokrovskite	Mg₂(CO₃)(OH)₂
O	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Rutile	TiO₂
O	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
O	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
O	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
O	ⓘ Zoisite var. Thulite	{Ca₂}{Al,Mn₃³⁺}(Si₂O₇)(SiO₄)O(OH)
O	ⓘ Titanite	CaTiO(SiO₄)
O	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
O	ⓘ Tourmaline	AD₃G₆(T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
O	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
O	ⓘ Xonotlite	Ca₆(Si₆O₁₇)(OH)₂
O	ⓘ Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
O	ⓘ Fayalite-Forsterite Series
O	ⓘ Chromite-Magnesiochromite Series
O	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Na	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Na	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Na	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
Na	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Na	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Na	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Mg	ⓘ Anthophyllite	◻Mg₂Mg₅(Si₈O₂₂)(OH)₂
Mg	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Brucite	Mg(OH)₂
Mg	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
Mg	ⓘ Diopside var. Chromium-bearing Diopside	Ca(Mg,Cr)Si₂O₆
Mg	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Mg	ⓘ Clinochrysotile	Mg₃(Si₂O₅)(OH)₄
Mg	ⓘ Coalingite	Mg₁₀Fe₂³⁺(OH)₂₄[CO₃] · 2H₂O
Mg	ⓘ Desautelsite	Mg₆Mn₂³⁺(OH)₁₆[CO₃] · 4H₂O
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Mg	ⓘ Huntite	CaMg₃(CO₃)₄
Mg	ⓘ Hydromagnesite	Mg₅(CO₃)₄(OH)₂ · 4H₂O
Mg	ⓘ Lizardite	Mg₃(Si₂O₅)(OH)₄
Mg	ⓘ Magnesite	MgCO₃
Mg	ⓘ Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
Mg	ⓘ Mcguinnessite	(Mg,Cu)₂(CO₃)(OH)₂
Mg	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
Mg	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Mg	ⓘ Pokrovskite	Mg₂(CO₃)(OH)₂
Mg	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Mg	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
Mg	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Mg	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Mg	ⓘ Fayalite-Forsterite Series
Mg	ⓘ Chromite-Magnesiochromite Series
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Al	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Al	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Al	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
Al	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Al	ⓘ Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
Al	ⓘ Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂
Al	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Nacrite	Al₂(Si₂O₅)(OH)₄
Al	ⓘ Nimite	Ni₅Al(AlSi₃O₁₀)(OH)₈
Al	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
Al	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Al	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Al	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Al	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Al	ⓘ Zoisite var. Thulite	{Ca₂}{Al,Mn₃³⁺}(Si₂O₇)(SiO₄)O(OH)
Al	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Al	ⓘ Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Anthophyllite	◻Mg₂Mg₅(Si₈O₂₂)(OH)₂
Si	ⓘ Antigorite	Mg₃(Si₂O₅)(OH)₄
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Quartz var. Chalcedony	SiO₂
Si	ⓘ Chrysotile	Mg₃(Si₂O₅)(OH)₄
Si	ⓘ Diopside var. Chromium-bearing Diopside	Ca(Mg,Cr)Si₂O₆
Si	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Si	ⓘ Clinochlore	Mg₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Clinochrysotile	Mg₃(Si₂O₅)(OH)₄
Si	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Dravite	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Si	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Si	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
Si	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Si	ⓘ Lizardite	Mg₃(Si₂O₅)(OH)₄
Si	ⓘ Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
Si	ⓘ Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂
Si	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Nacrite	Al₂(Si₂O₅)(OH)₄
Si	ⓘ Nimite	Ni₅Al(AlSi₃O₁₀)(OH)₈
Si	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
Si	ⓘ Opal	SiO₂ · nH₂O
Si	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Si	ⓘ Pecoraite	Ni₃(Si₂O₅)(OH)₄
Si	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Si	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Si	ⓘ Talc	Mg₃Si₄O₁₀(OH)₂
Si	ⓘ Zoisite var. Thulite	{Ca₂}{Al,Mn₃³⁺}(Si₂O₇)(SiO₄)O(OH)
Si	ⓘ Titanite	CaTiO(SiO₄)
Si	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Si	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Si	ⓘ Xonotlite	Ca₆(Si₆O₁₇)(OH)₂
Si	ⓘ Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Fayalite-Forsterite Series
Si	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
P	Phosphorus
P	ⓘ Fluorapatite	Ca₅(PO₄)₃F
S	Sulfur
S	ⓘ Bornite	Cu₅FeS₄
S	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Galena	PbS
S	ⓘ Millerite	NiS
S	ⓘ Molybdenite	MoS₂
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Pyrite	FeS₂
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Ca	ⓘ Aragonite	CaCO₃
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Diopside var. Chromium-bearing Diopside	Ca(Mg,Cr)Si₂O₆
Ca	ⓘ Clinozoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Fluorapatite	Ca₅(PO₄)₃F
Ca	ⓘ Grossular	Ca₃Al₂(SiO₄)₃
Ca	ⓘ Heulandite Subgroup	(Na/Ca/K)_5-6[Al_8-9 Si_27-28 O₇₂] · nH₂O
Ca	ⓘ Grossular var. Hibschite	Ca₃Al₂(SiO₄)_3-x(OH)_4x
Ca	ⓘ Huntite	CaMg₃(CO₃)₄
Ca	ⓘ Laumontite	CaAl₂Si₄O₁₂ · 4H₂O
Ca	ⓘ Magnesio-hornblende	◻Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂
Ca	ⓘ Margarite	CaAl₂(Al₂Si₂O₁₀)(OH)₂
Ca	ⓘ Mesolite	Na₂Ca₂Si₉Al₆O₃₀ · 8H₂O
Ca	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
Ca	ⓘ Pargasite	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂
Ca	ⓘ Prehnite	Ca₂Al₂Si₃O₁₀(OH)₂
Ca	ⓘ Scolecite	CaAl₂Si₃O₁₀ · 3H₂O
Ca	ⓘ Stellerite	Ca₄(Si₂₈Al₈)O₇₂ · 28H₂O
Ca	ⓘ Zoisite var. Thulite	{Ca₂}{Al,Mn₃³⁺}(Si₂O₇)(SiO₄)O(OH)
Ca	ⓘ Titanite	CaTiO(SiO₄)
Ca	ⓘ Tremolite	◻Ca₂Mg₅(Si₈O₂₂)(OH)₂
Ca	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Ca	ⓘ Xonotlite	Ca₆(Si₆O₁₇)(OH)₂
Ca	ⓘ Zoisite	(CaCa)(AlAlAl)O[Si₂O₇][SiO₄](OH)
Ca	ⓘ Plagioclase	(Na,Ca)[(Si,Al)AlSi₂]O₈
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Ilmenite	Fe²⁺TiO₃
Ti	ⓘ Rutile	TiO₂
Ti	ⓘ Titanite	CaTiO(SiO₄)
Cr	Chromium
Cr	ⓘ Diopside var. Chromium-bearing Diopside	Ca(Mg,Cr)Si₂O₆
Cr	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Cr	ⓘ Chromite-Magnesiochromite Series
Mn	Manganese
Mn	ⓘ Desautelsite	Mg₆Mn₂³⁺(OH)₁₆[CO₃] · 4H₂O
Mn	ⓘ Zoisite var. Thulite	{Ca₂}{Al,Mn₃³⁺}(Si₂O₇)(SiO₄)O(OH)
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Ankerite	Ca(Fe²⁺,Mg)(CO₃)₂
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Bornite	Cu₅FeS₄
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Chromite	Fe²⁺Cr₂³⁺O₄
Fe	ⓘ Coalingite	Mg₁₀Fe₂³⁺(OH)₂₄[CO₃] · 2H₂O
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Goethite	Fe³⁺O(OH)
Fe	ⓘ Hematite	Fe₂O₃
Fe	ⓘ Ilmenite	Fe²⁺TiO₃
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Omphacite	(Na_aCa_bFe_c²⁺Mg_d)(Al_eFe_f³⁺Fe_g²⁺Mg_h)Si₂O₆
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Pyrrhotite	Fe_1-xS
Fe	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Fe	ⓘ Tochilinite	Fe²⁺_5-6(Mg,Fe²⁺)₅S₆(OH)₁₀
Fe	ⓘ Vesuvianite	Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉
Fe	ⓘ Fayalite-Forsterite Series
Fe	ⓘ Chromite-Magnesiochromite Series
Co	Cobalt
Co	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
Ni	Nickel
Ni	ⓘ Millerite	NiS
Ni	ⓘ Nimite	Ni₅Al(AlSi₃O₁₀)(OH)₈
Ni	ⓘ Pecoraite	Ni₃(Si₂O₅)(OH)₄
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Cu	Copper
Cu	ⓘ Azurite	Cu₃(CO₃)₂(OH)₂
Cu	ⓘ Bornite	Cu₅FeS₄
Cu	ⓘ Brochantite	Cu₄(SO₄)(OH)₆
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Cu	ⓘ Malachite	Cu₂(CO₃)(OH)₂
Cu	ⓘ Mcguinnessite	(Mg,Cu)₂(CO₃)(OH)₂
As	Arsenic
As	ⓘ Erythrite	Co₃(AsO₄)₂ · 8H₂O
Mo	Molybdenum
Mo	ⓘ Molybdenite	MoS₂
Pd	Palladium
Pd	ⓘ Native Palladium	(Pd,Pt)
Pt	Platinum
Pt	ⓘ Native Palladium	(Pd,Pt)
Pt	ⓘ Native Platinum	Pt
Au	Gold
Au	ⓘ Native Gold	Au
Pb	Lead
Pb	ⓘ Galena	PbS

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Wikipedia:	https://en.wikipedia.org/wiki/Rockville,_Maryland
Wikidata ID:	Q327022
GeoNames ID:	4367175

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Maryland
- Montgomery County
  - Rockville

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North America PlateTectonic Plate

PedmontiaAccretionary Complex
Piedmontia DomainDomain

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Rockville, Montgomery County, Maryland, USAiRegional Level TypesRockvilleCity Montgomery CountyCounty MarylandState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Rockville, Montgomery County, Maryland, USA i
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