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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Bertrandite from
Bigger Mica Mine (Sweitzer Lode), Clear Creek pegmatite Province, Jefferson County, Colorado, USA


Locality type:Mine
Classification
Species:Bertrandite
Formula:Be4(Si2O7)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bertrandite data
Locality Data:Click here to view Bigger Mica Mine (Sweitzer Lode), Clear Creek pegmatite Province, Jefferson County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:432453
Long-form Identifier:1:3:432453:9
GUID (UUID V4):0
Nearest other occurrences of Bertrandite
20.4km (12.7 miles) ⓘTwin Cedars pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
24.3km (15.1 miles) ⓘCentennial Cone pegmatite (K. L. Green Ranch), Centennial Cone, Clear Creek pegmatite Province, Jefferson County, Colorado, USA
25.5km (15.8 miles) ⓘHarris Park, Park County, Colorado, USA
26.8km (16.6 miles) ⓘGrover Mine (Grover pegmatite; Windsor), Clear Creek County, Colorado, USA
52.9km (32.9 miles) ⓘChina Wall Area, Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale), Park County, Colorado, USA
53.3km (33.1 miles) ⓘA & C Claims (A & C No. 2 Claim; China Wall Cupola), Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale), Park County, Colorado, USA
53.8km (33.5 miles) ⓘHazel Marie Group, Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale), Park County, Colorado, USA
54.2km (33.7 miles) ⓘBlack Prince Mine, Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale), Park County, Colorado, USA
54.6km (34.0 miles) ⓘRedskin Mine (Redskin Claim; Claims: Papoose; Squaw), Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale), Park County, Colorado, USA
55.1km (34.2 miles) ⓘRedskin Gulch, Lake George Beryllium area (Badger Flats Beryllium area; Mountain Dale), Park County, Colorado, USA
References
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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