J.B.J Claims

The J.B.J Claims is a gold mine located in Humboldt county, Nevada at an elevation of 4,429 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: J.B.J Claims
Secondary: NBMG Sample Site 2627

Commodity

Primary: Gold
Secondary: Silver
Secondary: Lead
Tertiary: Copper
Tertiary: Arsenic

Location

State: Nevada
County: Humboldt
District: Mill City District (Central District)

Land Status

Land ownership: BLM Administrative Area
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
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Model Name: Low-sulfide Au-quartz vein

Orebody

Form: TABULAR

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Silicification Along Dike Contact; Kaolinization Of Dike And Wall Rocks

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Jurassic

Analytical Data

Analytical Data: SAMPLE 2627 OF VEIN MATERIAL CONTAINS 3% FE, 0.5% MG, 0.5% CA, 0.1% TI, 500 PRM MN, 200 PPM AG, +10000 PPM AS, 50 PPM B, 70 PPM BA, 150 PPM CD, 100 PPM CU, 5 PPM MO, 7 PPM NI, 20000 PPM PB, 500 PPM SB, 300 PPM SR, 20 PPM V, 1000 PPM ZN, 15 PPM ZR. AA ANALYSIS INDICATES 0.8 PPM AU ALSO.

Materials

Ore: Gold
Ore: Chalcopyrite
Gangue: Hematite
Gangue: Quartz
Gangue: Biotite

Comments

Comment (Workings): SHAFTS, ADITS, CUTS-ALONG STRUCTURE

Comment (Deposit): OLD WORKINGS FOLLOW SHEAR ZONE CUTTING PAPER SHALE AND HORNFELS. FE OXIDE STAINING ALONG BEDDING, BUT ROCK IS NOT HIGHLY ALTERED. 1.5-2 FT THICK CRUSHED ZONE WITH 3-6 INCH VUGGY RUSTY-APPEARING QUARTZ ALONG THE EAST WALL. VUGS IN VEIN QUARTZ CONTAIN CLEAR QUARTZ CRYSTALS, SOME PYRITE, CHALCOPYRITE, GREEN CU OXIDE MINERALS PRESENT. 2 OTHER PARALLEL SHEAR ZONES ARE TO THE EAST OF THE SAMPLE SITE. THE EASTERN MOST ZONE SEEMS TO BE ALONG A N 25 E DIORITE DIKE WHOSE CONTACT ZONE IS SILICIFIED. DIKE AND ADJACENT WALL ROCKS ARE KAOLINIZED; DIKE HAS MNO AND FEOX POINTS. VEIN AT SAMPLE SITE IS PEGMATITIC, COMPOSED OF WHITE FELDSPAR, QUARTZ AND SOME BIOTITE

Comment (Location): INFO FROM LAND.ST :(1972)

References

Reference (Deposit): TINGLEY, J.V., NBMG FIELD EXAMINATION, 9/20/84

Nevada Gold

Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.