The Black Jack is a silver mine located in Juab county, Utah at an elevation of 6,965 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
Elevation: 6,965 Feet (2,123 Meters)
Commodity: Silver
Lat, Long: 39.92556, -112.11250
Map: View on Google Maps
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Black Jack MRDS details
Site Name
Primary: Black Jack
Secondary: Empire
Commodity
Primary: Silver
Secondary: Gold
Secondary: Iron
Secondary: Manganese
Location
State: Utah
County: Juab
District: Tintic District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metasomatic
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Cross Fissures (N 45 - 70 E, 70 W To 90 )
Alterations
Alteration Type: L
Alteration Text: The Limestone Is Metamorphosed
Rocks
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Analytical Data
Analytical Data: MANGANIFEROUS IRON ORE (USBM): 19.27 % MN, 17.8 % SILICA, 10.5 % FE, 17.5 % AL2O3, 0.15 % ZN, 0.136 % P.
Materials
Ore: Pyrolusite
Ore: Hematite
Ore: Gold
Ore: Limonite
Ore: Silver
Ore: Goethite
Gangue: Garnet
Gangue: Spinel
Gangue: Magnetite
Comments
Comment (Location): LOCATION IS OF THE SHAFT, THE TUNNEL IS AT ELEV. 6,742 FT SE OF THE SHAFT.
Comment (Commodity): THE MANGANIFEROUS IRON ORE WAS FOUND 500 FT SOUTH OF THE SHAFT AND NONE WAS FOUND IN THE SHAFT
Comment (Workings): A 1,400 FT SHAFT WITH LEVELS AT 200 , 300 , 1000 , 1300 , AND 1400 FT; A 2100 FT ADIT CONNECTS WITH THE SECOND LEVEL. TOTAL DEVELOPMENT IS ABOUT 23,770 FT. THE IRON WORKINGS ARE 400 AND 500 FT SOUTH OF THE SHAFT. THE FORMER IS A 120 X 50 X 50 FT OPEN CUT AND THE LATTER IS A 369 FT ADIT.
Comment (Geology): GEOL.DESC: THE IRON ORE IS SURROUNDED BY HALLOYSITE CLAY
References
Reference (Deposit): LINDGREN, W, AND LOUGHLIN, GF, 1919 , GEOL & ORE DEP OF TINTIC MINING DIST: USGS PROF PAPER 107 , P. 222
Reference (Deposit): COOK, DR, 1957 , GEOL OF E TINTIC MTNS AND ORE DEP OF THE TINTIC MINING DIST: UTAH GEOL SOC GUIDEBOOK # 12 , PL 3
Reference (Deposit): CRITTENDEN, MD JR, 1951 , MANGANESE DEP OF W. UTAH: USGS BULL 979 - A, P. 52
Reference (Deposit): BULLOCK,K.C., 1970, IRON DEPOSITS OF UTAH: UTAH GEOL. & MIN. SURV. BULL. 88, P. 66.
Reference (Deposit): 5) USBM MINERAL RESOURCE YEARBOOK 1931, PT. 1, P. 164.
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