Vote for your favorite mineral in #MinCup26! - Azurite vs. Smithsonite
It's carbonate-vs-carbonate to kick off Mineral Cup 2026 with copper-rich Azurite against zinc-rich Smithsonite.
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Topaz from
Chalk Mountain, Summit County, Colorado, USA


Locality type:Mountain
Classification
Species:Topaz
Formula:Al2(SiO4)(F,OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Topaz data
Locality Data:Click here to view Chalk Mountain, Summit County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:346309
Long-form Identifier:1:3:346309:3
GUID (UUID V4):0
Nearest other occurrences of Topaz
0.4km (0.3 miles) Chalk Mountain Occurrence, Alicante, Lake County, Colorado, USA
2.7km (1.7 miles) Climax Mine, Climax, Climax Mining District, Lake County, Colorado, USA
10.6km (6.6 miles) Sweet Home Mine, Detroit City Claim Block, Mount Bross, Alma Mining District, Park County, Colorado, USA
25.5km (15.9 miles) Holy Cross Mountain, Eagle County, Colorado, USA
50.1km (31.1 miles) Middle Mountain prospect, La Plata Mining District (Winfield Mining District), Chaffee County, Colorado, USA
53.0km (32.9 miles) Henderson Mine, Dailey Mining District (Jones Pass Mining District), Clear Creek County, Colorado, USA
53.0km (33.0 miles) Urad mine, Dailey Mining District (Jones Pass Mining District), Clear Creek County, Colorado, USA
62.2km (38.6 miles) Harris Park, Park County, Colorado, USA
62.4km (38.8 miles) Comet group (Comet prospect), Gunnison County, Colorado, USA
64.6km (40.2 miles) Upper Sand Creek, Park County, Colorado, USA
References
 
and/or  
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