| Deposit ID | 10089198 |
|---|---|
| MRDS ID | W014761 |
| Record type | Site |
| Current site name | Star Diamond Mine |
| Geographic coordinates: | 26.80149, -28.3632 (WGS84) |
|---|---|
| Elevation | 1372 |
| Relative position | 11 KILOMETERS NORTHWEST OF THE TOWN OF WINBURG |
Political divisions (FIPS codes)
Free State(province)
South Africa(country)
Africa(continent)
Land(continent)
| Country | State |
|---|---|
| South Africa | Free State |
| Commodity | Importance |
|---|---|
| Diamond | Primary |
| Materials | Type of material |
|---|---|
| Biotite | Gangue |
| Garnet | Gangue |
| Ilmenite | Gangue |
| Phlogopite | Gangue |
| Result | DIAMOND RECOVERIES AVERAGE ABOUT 0.479 CARATS PER TON OF ORE MINED. INDUSTRIAL DIAMONDS COMPRISE APPROXIMATELY 50 PERCENT OF RECOVERIES. GEM DIAMONDS MAKE UP THE REMAINDER |
|---|
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Granite | ||||||
| Rock unit name | Star Kimberlite Dike;Melaphyre And Granite | ||||||
| Rock description | Star Kimberlite Dike;Melaphyre And Granite | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Kimberlite |
| Rock unit name | Dwyka Tillite And Shale |
| Rock description | Dwyka Tillite And Shale |
| (1) | 26.80149, -28.3632 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Dike, Or Fissure, Occurrences Traceable On The Surface And Underground For Distances Of 10-15 Kilometers |
| Type of structure | Local |
| Structure description | Star Kimberlite Dike (Cretaceous); Dwyka Tillite & Shale (Karroo) (Paleozoic); Melaphyre And Granite (Precambrian) |
| General form | LINEAR/VERTICAL |
|---|---|
| Dip | 90 - DEG |
| Length | 1500M |
| Width | 1.2M |
| Development status | Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Medium |
| Significant | No |
| District name | Star Kimberlite Dike |
|---|
| Type | Operator |
|---|---|
| Owner | New Witwatersrand Gold Exploration Co. Ltd. |
| Type | Owner |
|---|---|
| Owner | Gold Fields Of South Africa Ltd. |
| Type of workings | Underground |
|---|---|
| Length | 1500M |
| Overall depth | 500M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W014761 |
MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA; PELLETIER, R.A.; 1964
NEW WITWATERSRAND GOLD EXPLORATION COMPANY, LIMITED ANNUAL REPORTS, 1974-1975
NEW WITWATERSRAND GOLD EXPLORATION COMPANY, LIMITED, 1975, ANNUAL REPORT.
NEW WITWATERSRAND GOLD EXPLORATION COMPANY, LIMITED, ANNUAL REPORTS: 1973-1975 ; GOLD FIELDS OF SOUTH AFRICA ANNUAL REPORT 1976
| Subject category | Comment text |
|---|---|
| Deposit | TOTAL DEPTH OF (VERTICAL) DIKE NOT AVAILABLE. |
| Deposit | INFORMATION MERGED FROM RECORD NUMBER W027328 |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-1976 | Sweetwood, Charles W. | Department of State | |
| Updater | 01-AUG-1977 | Sweetwood, Charles W. | Department of State | |
| Updater | 01-AUG-1977 | Sweetwood, Charles W. | Department of State |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.