| Deposit ID | 10191354 |
|---|---|
| MAS/MILS ID | 4710650001 |
| Record type | Site |
| Current site name | Borralha |
| Alternate or previous names | Borralha Deposits |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -8.16481, 41.66594 (WGS84) |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Porto(province)
Portugal(country)
Europe(continent)
Land(continent)
| Country | State |
|---|---|
| Portugal | Porto |
| Commodity | Importance |
|---|---|
| Tungsten Critical | Primary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Unknown |
| Pyrite | Unknown |
| Scheelite | Unknown |
| Sphalerite | Unknown |
| Wolframite | Unknown |
| Ore Body (1) | -8.16481, 41.66594 |
|---|
| |||||||||
| Operation type | Surface |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | Yes |
| Mining method | Combined Methods |
| Year of first production | 1890 |
| Milling method | Gravity |
| Type | Owner-Operator |
|---|---|
| Owner | Minas Da Borralha Sarl |
| Home office | Portugal |
| Year | 1982 |
| Year | 1956 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Description | Peak Output Of Ferrotungsten 370 Tons | ||||||||||||||
| |||||||||||||||
| Type of workings | Underground | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall depth | 110M | ||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 4710650001 |
MINAS DA BORRALHA, MINING JOURNAL, MAR. 16, 1979.
BERALT TIN AND WOLFRAM LTD., ANNUAL REPORT, 1980.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 15-SEP-92 | Gazdik | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.