| Lat / long: | 40.53692, -105.3767 |
| Primary: | Mica, Beryllium |
| Tertiary: | Lithium, Niobium (Columbium), Tantalum |
| Ore: | Beryl, Muscovite, Spodumene |
| Gangue: | Albite, Cleavelandite, Garnet, Purpurite, Sericite, Tourmaline |
| Orebody form: | LENTICULAR |
| Discovery year: | 1884 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| First production started: | 1884 |
| Host rock: | Metasedimentary Rocks-Quartz-Biotite Schist;Pegmatite |
| Host type: | Schist |
| Associated rock: | Pegmatite;Tonalite (Quartz Diorite) |
| Associated type: | Tonalite,Pegmatite |
| Structure: | Front Range Uplift, Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Tourmalinization Of Schistose Wallrock; Albite, Cleavelandite, And Sericite Replacement Of Spodumene |
| MRDS | D010316 |
| DEP | 10013811 |
| Reference | {Deposit:: THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.}{Deposit:: HANLEY, J.B., AND OTHERS, 1950, PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-1944: USGS PROF. PAPER 227, P. 88-90, PL. 11.}{Deposit:: STERRETT, D.B., 1923, MICA DEPOSITS OF THE UNITED STATES: USGS BULL. 740, P. 59-61.} |
| Reporter | Schwochow, Stephen D. |