| Deposit ID | 10013519 |
|---|---|
| MRDS ID | D009867 |
| MAS/MILS ID | 80430208 |
| Record type | Site |
| Current site name | Rosemont Mine |
| Alternate or previous names | East |
| Related records | 10264245 |
| Point of reference | Trench |
|---|---|
| Geographic coordinates: | -105.478, 38.69391 (WGS84) |
| Elevation | 2666 |
| Location accuracy | 10(meters) |
| Relative position | 4.5 MILES S 55 E OF GUFFEY. Prospect shown but not labeled on topo. Confirmed by Fig. 7 of PP-227 and description of distance to nearby deposits. |
Political divisions (FIPS codes)
Fremont(county)
Colorado(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Cover Mountain(quadrangle 1:24,000 scale)
Pikes Peak(quadrangle 1:100,000 scale)
Pueblo(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Arkansas Headwaters(hydrologic unit)
Upper Arkansas(hydrologic accounting unit)
Upper Arkansas(hydrologic subregion)
Arkansas-White-Red(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management CO)
Bureau of Land Management CO BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Colorado | Fremont |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 6th Principal | 016S | 072W | 5 | NW OF NW | Colorado |
| Commodity | Importance |
|---|---|
| Mica | Primary |
| Feldspar | Primary |
| Bismuth Critical | Secondary |
| Materials | Type of material |
|---|---|
| Bismutite | Ore |
| Microcline | Ore |
| Muscovite | Ore |
| Biotite | Gangue |
| Garnet | Gangue |
| Model code | 32 |
|---|---|
| USGS model code | 13 |
| Deposit model name | Pegmatites |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite | ||||||||
| Rock unit name | Quartz Diorite Of Boulder Creek Age | ||||||||
| Rock description | Quartz Diorite Of Boulder Creek Age | ||||||||
| |||||||||
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Gneiss |
| Trench (1) | -105.478, 38.69391 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Southern Front Range, Thirtynine Mile Volcanic Field |
| Thickness | 3.05M |
|---|---|
| Length | 79.25M |
| Operation type | Surface-Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Both |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1950 |
| Year of first production | 1950 |
| District name | Micanite District |
|---|
| Ownership category | Private |
|---|
| Type of workings | Unknown |
|---|---|
| Length | 26.21M |
| Overall depth | 3.05M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | D009867 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 804300208 | = 10264245, merged and deleted. |
WOBUS, R.A., EPIS, R.C. AND SCOTT, G.R., 1979, GEOLOGIC MAP OF THE COVER MOUNTAIN QUADRANGLE, FREMONT, PARK, AND TELLER COUNTIES, COLORADO: USGS MAP I-1179, 1:62,500.
STERRETT, D.B., 1923, MICA DEPOSITS OF THE UNITED STATES: USGS BULLETIN 740, P. 51-55
HANLEY, J.B. AND OTHERS, 1950
MINOBRAS, 1974, Colorado and Utah Industrial Minerals.
| Subject category | Comment text |
|---|---|
| Deposit | 2-FT WIDE POD OF BISMUTH MINERALS FOUND DURING MINING; ZONED PEGMATITE WITH QUARTZ-MICROCLINE CORE, QUARTZ-MICROCLINE-MUSCOVITE-PLAGIOCLASE WALL ZONE |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 1982-12-01 | Collins, Donna B. | Colorado Geological Survey | |
| Editor | 2012-10-03 | Wilson, Anna B | U.S. Geological Survey | merged and deleted duplicate record. Corrected location coordinates. |
| Reporter | 1992-05-29 | Martin | U.S. Bureau of Mines | 804300208 |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.