| Deposit ID | 10087859 |
|---|---|
| MRDS ID | D010334 |
| Record type | Site |
| Current site name | Mica-Beryl Prospect |
| Geographic coordinates: | -105.40031, 40.53415 (WGS84) |
|---|---|
| Elevation | 2548 |
| Relative position | 12.3 MILES N 27 E FROM ESTES PARK |
Political divisions (FIPS codes)
Larimer(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Crystal Mountain(quadrangle 1:24,000 scale)
Fort Collins(quadrangle 1:100,000 scale)
Greeley(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Big Thompson(hydrologic unit)
South Platte(hydrologic accounting unit)
South Platte(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Arapaho and Roosevelt National Forests(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Colorado | Larimer |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 007N | 071W | 30 | SW OF SW | Colorado |
| Commodity | Importance |
|---|---|
| Mica | Primary |
| Beryllium Critical | Primary |
| Materials | Type of material |
|---|---|
| Beryl | Ore |
| Muscovite | Ore |
| Plagioclase | Gangue |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Tonalite | ||||
| |||||
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Pegmatite |
| Rock unit name | Pegmatite;Tonalite (Quartz Diorite) |
| Rock description | Pegmatite;Tonalite (Quartz Diorite) |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| Rock unit name | Metasedimentary Rocks-Quartz-Biotite Schist;Pegmatite |
| Rock description | Metasedimentary Rocks-Quartz-Biotite Schist;Pegmatite |
| (1) | -105.40031, 40.53415 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Front Range Uplift |
| Type of structure | Local |
| Structure description | Thompson Canyon Fault, Mt Olympus Batholith, Ne-Trending Folds |
| General form | LENTICULAR |
|---|---|
| Length | 42.06M |
| Width | 14.94M |
| Development status | Occurrence |
|---|---|
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| District name | Crystal Mountain (Storm Mountain) Pegmatite District |
|---|
| Ownership category | Private |
|---|
| Type | Owner |
|---|---|
| Owner | United Beryllium Ores And Metals Corp. |
| Home office | Denver, Co. |
| First year | 1942 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D010334 |
THURSTON, W.R., 1955, PEGMATITES OF THE CRYSTAL MOUNTAIN DISTRICT, LARIMER COUNTY, COLORADO: USGS BULL. 1011, 185 P., 13 PLS.
| Subject category | Comment text |
|---|---|
| Deposit | ZONED PEGMATITE TRENDS N555 E, WITH NORTHWEST CONTACT DIPPING 65 TO 70 NW AND SOUTHEAST CONTACT DIPPING 80 SE. 2-IN-WIDE BORDER ZONE CONSISTS OF QUARTZ-MUSCOVITE PEGMATITE; WALL ZONE CONSISTS OF QUARTZ-PLAGIOCLASE-MUSCOVITE PEGMATITE; INTERMEDIATE ZONE CONSISTS OF COARSE-GRAINED PLAGIOCLASE-QUARTZ PEGMATITE; CORE IS QUARTZ-PERTHITE PEGMATITE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAR-1983 | Schwochow, Stephen D. | Colorado Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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