Robbins Group

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

Name: Robbins Group  

State:  Arizona

County:  Maricopa

Elevation:

Primary Mineral:

Lat, Long: 33.95583, -111.49417

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 Robbins Group

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

"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 at Where to Find Gold in Arizona.