| Deposit ID | 10080048 |
|---|---|
| MRDS ID | W030999 |
| Record type | Site |
| Current site name | Koingnaas Diamond Mine |
| Geographic coordinates: | 17.0516, -29.57993 (WGS84) |
|---|---|
| Relative position | 100 KILOMETERS SOUTH OF PORT NOLLOTH ON WEST COAST OF SOUTH AFRICA |
Political divisions (FIPS codes)
Eastern Cape(province)
South Africa(country)
Africa(continent)
Land(continent)
| Country | State |
|---|---|
| South Africa | Eastern Cape |
| Commodity | Importance |
|---|---|
| Diamond | Primary |
| Host or associated | Host | ||
|---|---|---|---|
| Rock type | Unconsolidated Deposit > Sand and Gravel | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | 17.0516, -29.57993 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Tertiary To Recent Beach Sands; Unconsolidated |
| Type of structure | Local |
| Structure description | Diamondiferous Terraces In Tertiary Beach Sands |
| General form | IRREGULAR BLANKET |
|---|
| Development status | Producer |
|---|---|
| Commodity type | Non-metallic |
| Deposit size | Medium |
| Significant | No |
| Discovery year | 1962 |
| District name | Namaqualand |
|---|
| Ownership category | State |
|---|
| Type | Operator |
|---|---|
| Owner | Koingnaas Diamond Mine |
| Type | Owner |
|---|---|
| Owner | De Beers Consolidated Mines |
| Year | 1980 |
|---|---|
| Material | DIA |
| Accuracy | Accurate |
| Description | Ap_Grade: ^41.52 Carats/100 Tons |
| Year | 1980 |
|---|---|
| Material | ORE DIA |
| Accuracy | Accurate |
| Description | Ap_Grade: ^34.49 Carats/100 Met Ton Sand |
| Year | 1984 |
|---|---|
| Period | 1979-1984 |
| Material | ORE DIA |
| Description | Cp_Grade: ^41.52 Carats/100 Tons |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W030999 |
PELLITIER, R.A., 1964, MINERAL RESOURCES OF SOUTH-CENTRAL AFRICA
WILSON, A.N., 1971, INTERNATIONAL DIAMOND ANNUAL, VOL. 1.
1968 RECON DE BEERS CORPORATION
1976 DIREXPL DE BEERS CORPORATION
DE BEERS ANNUAL REPORTS, 1978, 1979, 1980 ; DE BEERS ANNUAL REPORT-1986 ; DE BEERS ANNUAL REPORT-1983 ; DE BEERS ANNUAL REPORT - 1984 ; DE BEERS ANNUAL REPORT - 1985 ; DE BEERS ANNUAL REPORT - 1982 ; DE BEERS ANNUAL REPORT 1981
| Subject category | Comment text |
|---|---|
| Deposit | ALLUVIAL DEPOSIT LOCATED ON DIAMOND-BEARING MATERIAL INTERSPERSED WITH CLAY BANDS. STONES ARE SMALL IN SIZE, BUT OF GOOD QUALITY. |
| Deposit | FROM 1981, DE BEERS NOT REPORTING INDIVIDUAL MINE PRODUCTION FROM ITS ALLUVIAL DEPOSITS. THEREFORE, AS OF 1981, THE ALLUVIAL DEPOSITS PRODUCTION (INCLUDING THIS MINE) WILL BE GROUPED,INTO ONE RECORD UNDER THE NAME OF 'NAMAQUALAND DIVISION MINES' |
| Deposit | INFORMATION MERGED FROM RECORD NUMBER W033024 ; W033155 ; W033156 ; W033834 ; W044581 ; W055331 |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JAN-1981 | Mccarter, Lorna D. | Department of State | |
| Updater | 01-JUL-1985 | Mccarter, Lorna D | Department of State | |
| Updater | 01-JUN-1984 | Mccarter, Lorna D | Department of State | |
| Updater | 01-JUL-1983 | Mccarter, Lorna D | Department of State | |
| Updater | 01-JUL-1982 | Mccarter, Lorna D | Department of State | |
| Updater | 01-JUL-1985 | Mccarter, Lorna D | Department of State | |
| Updater | 01-MAY-1986 | Mccarter, Lorna D | Department of State | |
| Updater | 01-JUL-1987 | Mccarter, Lorna D. | Department of State |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.