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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Union Quarry, Groton, Grafton County, New Hampshire, USAi
Regional Level Types
Union QuarryQuarry
GrotonTown
Grafton CountyCounty
New HampshireState
USACountry

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Latitude & Longitude (WGS84):
43° North , 71° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~3km
Type:
Mindat Locality ID:
8923
Long-form identifier:
mindat:1:2:8923:7
GUID (UUID V4):
0


Granite pegmatite. Grafton field. Ref.: (in part): Rocks & Min.: 65:351. Located near the village of North Groton.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

10 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Localities: Reported from at least 8 localities in this region.
Almandine
Formula: Fe2+3Al2(SiO4)3
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
'Feldspar Group'
Localities: Reported from at least 6 localities in this region.
'Feldspar Group var. Perthite'
Localities: Reported from at least 6 localities in this region.
Graftonite
Formula: Fe2+Fe2+2(PO4)2
Heterosite ?
Formula: (Fe3+,Mn3+)PO4
Microcline
Formula: K(AlSi3O8)
Localities: Reported from at least 8 localities in this region.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Localities: Reported from at least 8 localities in this region.
Quartz
Formula: SiO2
Localities: Reported from at least 8 localities in this region.
Quartz var. Smoky Quartz
Formula: SiO2
Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Triphylite
Formula: LiFe2+PO4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
Heterosite ?8.AB.10(Fe3+,Mn3+)PO4
Triphylite8.AB.10LiFe2+PO4
Graftonite8.AB.20Fe2+Fe2+2(PO4)2
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Microcline9.FA.30K(AlSi3O8)
Albite9.FA.35Na(AlSi3O8)
Unclassified
'Feldspar Group'-
'var. Perthite'-

List of minerals for each chemical element

HHydrogen
H AnniteKFe32+(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li TriphyliteLiFe2+PO4
BBoron
B SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O AlbiteNa(AlSi3O8)
O AnniteKFe32+(AlSi3O10)(OH)2
O AlmandineFe32+Al2(SiO4)3
O GraftoniteFe2+Fe22+(PO4)2
O Heterosite(Fe3+,Mn3+)PO4
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
O Quartz var. Smoky QuartzSiO2
O TriphyliteLiFe2+PO4
NaSodium
Na AlbiteNa(AlSi3O8)
Na SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AnniteKFe32+(AlSi3O10)(OH)2
Al AlmandineFe32+Al2(SiO4)3
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si AlbiteNa(AlSi3O8)
Si AnniteKFe32+(AlSi3O10)(OH)2
Si AlmandineFe32+Al2(SiO4)3
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Si Quartz var. Smoky QuartzSiO2
PPhosphorus
P GraftoniteFe2+Fe22+(PO4)2
P Heterosite(Fe3+,Mn3+)PO4
P TriphyliteLiFe2+PO4
KPotassium
K AnniteKFe32+(AlSi3O10)(OH)2
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
MnManganese
Mn Heterosite(Fe3+,Mn3+)PO4
FeIron
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe AlmandineFe32+Al2(SiO4)3
Fe GraftoniteFe2+Fe22+(PO4)2
Fe Heterosite(Fe3+,Mn3+)PO4
Fe SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Fe TriphyliteLiFe2+PO4

Localities in this Region

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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