The Robbins Group is a mine located in Maricopa county, Arizona.
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.
Robbins Group MRDS details
Site Name
Primary: Robbins Group
Secondary: Irl Group
Secondary: Cornucopia Claim
Commodity
Tertiary: Mercury
Location
State: Arizona
County: Maricopa
District: Mazatzal Mountains 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: Arizona Quicksilver Corp.
Home Office: Phoenix, Az.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: Ne Trending Prec Sedimentary And Volcanic Sequence. Mine In Phyllites And Siltstones Near Ne Trending Rhyolite Porphyry Intrusion To South.
Alterations
Not available
Rocks
Name: Slate
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Analytical Data
Analytical Data: ASSAY SHOWS 3.46 PCT. HG
Materials
Ore: Cinnabar
Gangue: Limonite
Comments
Comment (Location): OFF W FORK OF SYCAMORE CREEK IN MAZATZAL MOUNTAINS. ; INFO FROM LAND.ST :(1964)
Comment (Deposit): TWO VEINS CONTAINING QUARTZ, LIMONITE, CINNABAR CONSTITUTE MAIN ORE BODY. SMALL VEINLETS OF PURE CINNABAR IN VEINLETS UP TO 1 INCH WIDE OCCUR.
Comment (Workings): 4X15X6 FT. OPEN CUT. TWO TUNNELS TOTALING 1120 FT. RAISE 300 FT. LONG. STOPE 4X5X26 FT. SEVERAL CROSSCUTS.
Comment (Geology): SCHISTOSITY STRIKES N50E, DIPS 75SE.
Comment (Deposit): ROBBINS GROUP CONSISTS OF 9 CLAIMS ON ALDER (SYCAMORE ?) CREEK, MAZATZAL MTNS, MARICOPA COUNTY. AS OF 1927, ORE WAS REPORTED ONLY ON THE CORNUCOPIA CLAIM. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Comment (Commodity): ORE IS POROUS BECAUSE OF LEACHING
References
Reference (Deposit): ARIZ. BUREAU MINES, 1927, BULL. 122
Reference (Deposit): BAILEY, E. H., USGS, PERSONAL FILES
Reference (Deposit): DEWITT, ED, 1981. UNPUBLISHED RECONNAISSANCE MAPPING
Arizona Gold
"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.
