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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Tourmaline from
Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA


09387790017272729874708.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
02614520017272022934176.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
03990200017272022943363.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
03751930017370186789017.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
09387790017272729874708.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
02614520017272022934176.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
05764820017370186787153.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
00173640017363787911093.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
09387790017272729874708.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
05688680017272022974066.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
03990200017272022943363.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
08100980017370186786490.jpg
Elbaite, etc.

Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
Locality type:Pegmatite
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Chief lithium pegmatite, Texas Creek Area, Fremont County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:35023
Long-form Identifier:1:3:35023:3
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
6.3km (3.9 miles) ⓘHighway 50 roadcut, Texas Creek Area, Fremont County, Colorado, USA
9.9km (6.1 miles) ⓘSpikebuck Mine, McIntyre Hills Area, Fremont County, Colorado, USA
12.1km (7.5 miles) ⓘHorsepasture Pegmatites Occurrence, Lookout Mountain Area, Fremont County, Colorado, USA
12.7km (7.9 miles) ⓘJim 3 Mine, Lookout Mountain Area, Fremont County, Colorado, USA
13.2km (8.2 miles) ⓘIlmenite Pegmatite Occurrence (MRDS - 10010868), Lookout Mountain Area, Fremont County, Colorado, USA
15.2km (9.5 miles) ⓘCotopaxi Mine (Cotopaxi lode; Gumaer Mine; Fannie lode; Fannie Mill), Mine Gulch, Cotopaxi, Cotopaxi Mining District, Fremont County, Colorado, USA
20.3km (12.6 miles) ⓘGreen Mountain Mine (Copper Boy Mine), Grape Creek Mining District (Greenhorn Mining District), Fremont County, Colorado, USA
20.9km (13.0 miles) ⓘConsolidated Feldspar Corporation Mine (Feldspar Corporation Mine), Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
24.0km (14.9 miles) ⓘMeyers quarry (Meyers Quarry; Meyers-Halstead Quarry; Suzana Claims; Suzanna Claims; Royal Gorge No. 2), Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
24.3km (15.1 miles) ⓘR. H. Magnuson Mine (Magnusson Crosscut), Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
References
AMERICAN MINERALOGIST 50:96-104
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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