Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Chalcocite from
Silver Tip Mine, Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA


Locality type:Mine
Classification
Species:Chalcocite
Formula:Cu2S
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcocite data
Locality Data:Click here to view Silver Tip Mine, Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:373240
Long-form Identifier:1:3:373240:3
GUID (UUID V4):0
Nearest other occurrences of Chalcocite
0.6km (0.4 miles) ⓘLone Star of the West Mine, Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
2.2km (1.4 miles) ⓘXTC Claim (Rico; Blue Jay; Blue Bird Mine), Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
2.6km (1.6 miles) ⓘRico Claims (Rico and Rico No. 1), Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
4.2km (2.6 miles) ⓘCopper Queen Mine (Russell No. 1), Grayback Mining District (Russell Mining District), Costilla County, Colorado, USA
10.8km (6.7 miles) ⓘMcIntire Property, La Veta Pass Area, Huerfano County, Colorado, USA
23.4km (14.5 miles) ⓘIndependent Claim, La Veta Mining District, Huerfano County, Colorado, USA
24.3km (15.1 miles) ⓘWashout Claim (Price Ranch), La Veta Mining District, Huerfano County, Colorado, USA
51.4km (31.9 miles) ⓘUnnamed Silver - Gold - Copper Mine (MRDS - 10012941), Crestone Mining District (Baca Grant Mining District), Saguache County, Colorado, USA
78.3km (48.6 miles) ⓘGem Mine, Gem Park complex, Fremont County, Colorado, USA
91.9km (57.1 miles) ⓘLeeks Lode, Copper Gulch Area, Fremont County, Colorado, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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