Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
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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Marl Mountains, San Bernardino County, California, USAi
Regional Level Types
Marl MountainsMountain Range
San Bernardino CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
35° 9' 37'' North , 115° 40' 25'' West
Latitude & Longitude (decimal):
35.16026,-115.67361
GeoHash:
G#: 9qm8pb9p3
GRN:
N24W68
Type:
Mountain Range
Köppen climate type:
BWh : Hot deserts climate
Mindat Locality ID:
289673
Long-form identifier:
mindat:1:2:289673:4
GUID (UUID V4):
0


A summit.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

5 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Allanite Group'
Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
Description: Original find was limited to 1 discovered crystal partly replaced by Bastnäsite. Crystals to 2.5 cm (1 inch) in drusy cavities in microcline in pegmatite.
ⓘ 'Bastnäsite'
Formula: (Ce/Nd/Y/REE)(CO3)F
Description: Occurs replacing Allanite.
ⓘ 'Fergusonite'
Description: Occurs as crystals up to 3 mm diameter.
ⓘ Ilmenite
Formula: Fe2+TiO3
Description: Occurs in thin plates up to 7.5 cm long and 3 mm thick in a pegmatite.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Description: Occurs in thin plates up to 7.5 cm long and 3 mm thick in a pegmatite.
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ 'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Description: Occurs as grains and small crystals on plates of Magnetite and Ilmenite in pegmatite.
ⓘ 'Pyrochlore Supergroup var. Betafite (of Hogarth 1977)'
Formula: (Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Description: Occurs as grains and small crystals on plates of Magnetite and Ilmenite in pegmatite.
ⓘ Scheelite
Formula: Ca(WO4)
ⓘ Zircon
Formula: Zr(SiO4)
Description: Occurs as crystals to 1 mm, associated with plates of Magnetite and Ilmenite.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘIlmenite4.CB.05Fe2+TiO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘScheelite7.GA.05Ca(WO4)
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘMicrocline9.FA.30K(AlSi3O8)
Unclassified
ⓘ'Bastnäsite'-(Ce/Nd/Y/REE)(CO3)F
ⓘ'Pyrochlore Supergroup
var. Betafite (of Hogarth 1977)'		-(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
ⓘ'Fergusonite'-
ⓘ'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
ⓘ'Allanite Group'-(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Hⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
CCarbon
Cⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
OOxygen
Oⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
Oⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ ScheeliteCa(WO4)
Oⓘ ZirconZr(SiO4)
Oⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
FFluorine
Fⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
NaSodium
Naⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
AlAluminium
Alⓘ MicroclineK(AlSi3O8)
SiSilicon
Siⓘ MicroclineK(AlSi3O8)
Siⓘ ZirconZr(SiO4)
Siⓘ Allanite Group(A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)
KPotassium
Kⓘ MicroclineK(AlSi3O8)
CaCalcium
Caⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Caⓘ ScheeliteCa(WO4)
TiTitanium
Tiⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
Tiⓘ IlmeniteFe2+TiO3
FeIron
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
YYttrium
Yⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
CeCerium
Ceⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
NdNeodymium
Ndⓘ Bastnäsite(Ce/Nd/Y/REE)(CO3)F
TaTantalum
Taⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)
WTungsten
Wⓘ ScheeliteCa(WO4)
UUranium
Uⓘ Pyrochlore Supergroup var. Betafite (of Hogarth 1977)(Ca,Na,U)2(Ti, Nb,Ta)2O6Z(OH)

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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