Osirio Mine

The Osirio Mine is a nickel mine located in Jefferson county, Colorado at an elevation of 7,300 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Osirio Mine

Commodity

Primary: Nickel

Location

State: Colorado
County: Jefferson
District: Tarryall Mountains Area

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Replacement
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: Front Range Uplift, Pikes Peak Batholith

Type: L
Description: Shawnee Fault, Deer Creek Fault, Pine Gulch Fault, Unnamed Fault

Alterations

Not available

Rocks

Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Not available

Materials

Not available

Comments

Comment (Location): ALONG HOLMES GULCH. TRAVER (1947) GIVES LOCATION AS INCLUDING SEC. 25, T7S, R 72 W AND SEC. 31, T75, R 71 W. ; INFO FROM LAND.ST :(1975)

Comment (Commodity): NI MAY BE CONTAINED IN CHALCOPYRITE OR PYRRHOTITE

Comment (Deposit): NO SPECIFIC SITE DESCRIPTION AVAILABLE, BUT LOVERING AND GODDARD (1950) DESCRIBE GENERAL CHARACTERISTICS OF AREA DEPOSITS: "THE HYPOTHERMAL REPLACEMENT DEPOSITS ARE PERHAPS THE MOST WIDESPREAD OF THE PRE-CAMBRIAN ORE DEPOSITS BUT ARE NEARLY EVERYWHERE NONCOMMERCIAL. THE ORES COMMONLY OCCUR NEAR THE EDGE OF LARGE GRANITIC MASSES IN ACTINOLITE SCHIST OR OTHER LIMY BEDS OF (PRECAMBRIAN METAMORPHICS). THE ORE BODIES USUALLY CONSIST OF COARSELY CRYSTALLIZED AGGREGATES OF AMPHIBOLE AND CALCITE WITH MINOR AMOUNTS OF THE SULFIDE MINERALS, THE MOST ABUNDANT OF WHICH ARE CHALCOPYRITE AND PYRRHOTITE. IN SOME PLACES NICKEL AND COBALT MINERALS ARE ASSOCIATED WITH THE PYRRHOTITE AND CHALCOPYRITE, AND IN A FEW LOCALITIES SPHALERITE WITH MINOR AMOUNTS OF GALENA IS MORE ABUNDANT THAN CHALCOPYRITE...SOME OF THE BETTER-KNOWN DEPOSITS ARE THOSE ALONG THE SOUTH AND WEST SIDE OF THE TARRYALL MOUNTAINS JUST WEST OF THE PIKES PEAK GRANITE BATHOLITH..."

References

Reference (Deposit): LOVERING, T.S., AND GODDARD, E.N., 1950, GEOLOGY AND ORE DEPOSITS OF THE FRONT RANGE, COLORADO: USGS PROF. PAPER 223, P. 64-65

Reference (Deposit): BRYANT, BRUCE, 1976, RECONNAISSANCE GEOLOGIC MAP OF THE BAILEY QUADRANGLE, JEFFERSON AND PARK COUNTIES, COLORADO: USGS MAP MF-816

Reference (Deposit): TRAVER, W.M., JR., 1947, INVESTIGATIONS OF STRATEGIC MINERAL RESOURCES, IN VANDERWILT, J.W. MINERAL RESOURCES OF COLORADO: COLORADO STATE MINERAL RESOURCES BOARD, P. 475.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.