Janet Lucritia Mine

The Janet Lucritia Mine is a quartz mine located in Jefferson county, Colorado at an elevation of 7,100 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

Name: Janet Lucritia Mine

State:  Colorado

County:  Jefferson

Elevation: 7,100 Feet (2,164 Meters)

Commodity: Quartz

Lat, Long: 39.37917, -105.19222

Map: View on Google Maps

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.


Satelite image of the Janet Lucritia Mine

Janet Lucritia Mine MRDS details

Site Name

Primary: Janet Lucritia Mine
Secondary: Janice Lucertia Mine


Commodity

Primary: Quartz
Tertiary: Iron


Location

State: Colorado
County: Jefferson
District: South Platte Pegmatite District


Land Status

Land ownership: National Forest
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

Owner Name: E. S. Robinson And Son
Home Office: Woodland Park, Co.
Years: 1964 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1964
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

Form: CIRCULAR, OVAL


Structure

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

Type: L
Description: Kennedy Gulch Fault Zone


Alterations

Not available


Rocks

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

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


Analytical Data

Not available


Materials

Ore: Quartz


Comments

Comment (Location): SOUTH OF SPRING CREEK JUST NORTH OF GEMINI PEGMATITE ; INFO FROM LAND.ST :(1975)

Comment (Deposit): CIRCULAR TO OVAL PEGMATITE HAS NO WALL OR INTERMEDIATE ZONES BUT ONLY A CORE ZONE OF MICROCLINE-QUARTZ. LARGE HEMATITE REPLACEMENT BODY MEASURING 3X2X2 FT AND WEIGHING AT LEAST 300 LB TRANSECTS QUARTZ CORE AND TRENDS SUBPARALLEL TO NW-TRENDING FAULT GOUGE THAT TRUNCATES NE SIDE OF PEGMATITE.

Comment (Workings): OPEN CUT INTO CORE ZONE


References

Reference (Deposit): SIMMONS, W.B., AND HEINRICH, E.W., 1980, RARE-EARTH PEGMATITES OF THE SOUTH PLATTE DISTRICT, COLORADO: CGS RESOURCE SER. 11, 131 P.

Reference (Deposit): PETERSON, W.L., 1964, GEOLOGY OF THE PLATTE CANYON QUADRANGLE, COLORADO: USGS BULL. 1181-C, 23 P., 1 PL.

Reference (Deposit): HAYNES, C.V., JR., 1965, GENESIS OF THE WHITE CLOUD AND RELATED PEGMATITES, SOUTH PLATTE AREA, JEFFERSON COUNTY, COLORADO: GSA BULL., V. 76, NO. 4, P. 441-462.


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

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