Mine detail: Green Crystal Mine

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Location: Larimer County, Colorado, United States, North America
Lat / long: 40.63915, -105.33448
dep_id: 10013814
mrds_id: D010323
Commodity type: metallic
Major mineral: Beryllium
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Beryl
Reporter: Schwochow, Stephen D.
hrock_unit: Metamorphic Rocks-Biotite Gneiss, Schist, And Migmatite;Pegmatite
hrock_type: Gneiss
arock_unit: Pegmatite;Tonalite (Quartz Diorite)
arock_type: Tonalite,Pegmatite
Structure: Front Range Uplift, Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds
tectonic: Central Cordillera (Southern Rocky Mtns)
References:
  • Deposit:: THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.
  • Deposit:: MEEVES, H.C., AND OTHERS, 1966, RECONNAISSANCE OF BERYLLIUM-BEARING PEGMATITE DEPOSITS IN SIX WESTERN STATES: USBM IC-8298, P. 30.
  • Deposit:: USBM MINERAL EXAM. FILE (FROM ORIGINAL CRIB RECORD)
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