USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Pima County
Eclipse Mine Group
Mindat Confirmed Copper Underground
Key facts
- State
- Arizona
- County
- Pima
- Mining district
- Helvetia-Rosemont District
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Copper
- Verification
- Mindat Confirmed
Also known as
- Olcott Or Triangle, Eldon Or Backbone, Coronado Nf, Part 12, Santa Rita Mt, Unit, Az, Usbm Ofr Mla 11-94.
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
Ref.: Arizona Bureau of Mines file data, circa 1973. MRDS database Dep. ID file #10162338, MAS ID #0040190974. A former Ag-Au mine. Exact loction unknown. Mr. Duncan had unknown involvement here (1932).
Additional documented workings
-
Crosscut
— documented in 1 source record.
Mindat -
Shaft
— documented in 1 source record.
Mindat
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 2 shaft symbols
- 28 adit symbols
View individual source records (4)
Every underlying record used to build the summary above, for research/verification use.
-
Crosscut
Documented in Mindat locality data. Evidence: Arizona, USGS Bull. 582: 92, 118. A copper mine located on the patented Eclipse claim. The crosscut at the bottom of the shaft expose… -
Shaft
Documented in Mindat locality data. Evidence: 118. A copper mine located on the patented Eclipse claim. The crosscut at the bottom of the shaft exposed a width o... Historical con…
- Derived from MRDS oper_type (existing operation): Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Underground · oper_type
Verification
Mindat Confirmed
Mindat locality corroborates underground workings.
Why confirmed?
Mindat locality corroborates underground workings.
Why it's listed
USGS source data documents underground workings for this record.
History & operations
Historical record
- Development status: Past Producer
Operators / organizations
- Asarco (American Smelting And Refining Co.) · Source-reported owner · 1992
Commodities & minerals
Reported minerals
- Azurite
- Calcite
- Chalcocite
- Chalcopyrite
- Chert
- Chrysocolla
- Galena
- Hematite
View all 19 reported minerals
- Azurite
- Calcite
- Chalcocite
- Chalcopyrite
- Chert
- Chrysocolla
- Galena
- Hematite
- Jarosite
- Kaolinite
- Libethenite
- Limonite
- Malachite
- Molybdenite
- Pyrite
- Quartz
- Rosasite
- Silver-bearing Galena
- Sphalerite
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
USGS Historical Topographic Mine Features
Type: Historical mapped physical features
Dataset: DOI 10.5066/P9TAALR6
Supports:
- mapped shaft symbols (2)
- mapped adit symbols (28)
Historical mapped features may no longer exist.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 190202
Supports:
- locality identity
- reported minerals (19)
A Mindat locality match does not by itself establish underground workings.
Related underground mines
Blue Jay Mine
Arizona · Pima County
Unconfirmed Silver Past Producer Underground
Historical mapped workings available
Bulldozer Mine
Arizona · Pima County
Unconfirmed Copper Producer Mixed Underground/Surface
Historical mapped workings available
San Xavier Mine Shaft
Arizona · Pima County
Unconfirmed Zinc Producer Underground
Historical mapped workings available
San Xavier Extension Mine
Arizona · Pima County
Unconfirmed Copper Producer Underground
Historical mapped workings available