| Deposit ID | 10255817 |
|---|---|
| MAS/MILS ID | 5650150089 |
| Record type | Site |
| Current site name | Silanguin |
| Geographic coordinates: | 120.08262, 14.83345 (WGS84) |
|---|
Political divisions (FIPS codes)
Philippines(country)
Asia(continent)
Land(continent)
| Country |
|---|
| Philippines |
| Commodity | Importance |
|---|---|
| Chromium Critical | Primary |
| Materials | Type of material |
|---|---|
| Chromite | Unknown |
| Olivine | Unknown |
| (1) | 120.08262, 14.83345 |
|---|
| Length | 700M | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Width | 350M | ||||||||||||||||||||||
| Depth to top | 75M | ||||||||||||||||||||||
| |||||||||||||||||||||||
| Area | 25HA | ||||||
|---|---|---|---|---|---|---|---|
| |||||||
| Operation type | Surface |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Significant | No |
| Year of first production | 1977 |
| Milling method | Gravity |
| Type | Owner-Operator |
|---|---|
| Owner | Golden Arrow Mining Co., Inc. |
| Interest | 100 |
| Home office | Philippines |
| Year | 1981 |
| Year | 1979 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Description | 16.5% Cr2o3 76806 Metric Tons Ore | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 5650150089 |
BACANI, M.M., JR. "MINING METHODS OF PHILIPPINE CHROMITE
DEPOSITS." PHILIPPINE BUREAU OF MINES. MANILA. 1979.
PP. 1-14.
BACUTA, G.C., JR. "GEOLOGY OF SOME ALPINE-TYPE CHROMITE
DEPOSITS IN THE PHILIPPINES." JOURNAL OF THE GEOLOGICAL
SOCIETY OF PHILIPPINES. VOL. 33. NO.2 JUNE 1979.
PP. 44-81.
GOLDEN ARROW MINING COMPANY, INC. ANNUAL REPORT 1979. 1980.
PERSONAL COMMUNICATION. INTERVIEW WITH DR. RUDY OBIAL.
MANILA. NOVEMBER 3, 1980.
PHILIPPINE BUREAU OF MINES AND GEO-SCIENCES. MINES MID-YEAR
REVIEW. NO. 9. JUNE 1980. PP. 3-7.
WALTHER, H.W., NAST, K., AND FORSTER, H., 1976, DEPOSITS AND
MINING IN THE PHILLIPINES: FEDERAL INSTITUTE FOR
GEOSCIENCES AND NATURAL RESOURCES, P. 106.
| Subject category | Comment text |
|---|---|
| Deposit | THE SILANGUIN CHROMITE DEPOSIT IS LOCATED 5 KILOMETERS WEST OF SUBIC BAY IN ZAMBALES PROVINCE, LUZON, PHILIPPINES. IT IS ABOUT 20 KILOMETERS SOUTH OF THE COASTAL TO WN OF SAN ANTONIO ON THE CHINA SEA, AND ABOUT 90 KILOMETERS WEST OF MANILA. ACCORDING TO GOLDER: GOLDEN ARROW MINING BEGAN DEVELOPMENT IN SPRING, 1976. TRENCHING AND A 300 BY 300 METER DRIL- LING GRID ESTABLISHED RESERVES OF 190,000 TONNES OF METALL. GRADE CR2O3. PRODUCTION BEGAN IN EARLY 1977. THE SILANGUIN MINE CLOSED IN JANUARY 1980 AND THE MILL WAS MOVED ACROSS THE BAY TO THE BACUNGAN PROPERTY ON PALAWAN ISLAND. RESERVE ESSENTIALLY EXHAUSTED AND PROPERTY NOT ANALYZED IN 1981 STUDY. THE SILANGUIN MINE IS NOW BEING PREPARED FOR THE FINAL STAGE IN MINING AND IS EXPECTED TO CLOSE BEFORE 1982 UNLESS SUBSTANTIAL RESERVES ARE FOUND AND THE MARKET PRICE FOR THE CHROMITE IMPROVES. THE TRANSFER OF PLANT AND EQUIPMENT FROM THE MINE IS PLANNED TO TAKE 8 MONTHS. IT IS NOT KNOWN WHEN THE MOVE WILL TAKE PLACE. 9 DIAMOND DRILL HOLES TOTALLING 813 METERS SUNK AT THE MINE TO FURTHER DEFINE ORE GRADE. MINING WAS BY OPEN PIT. PRODUCTION WAS 300 METRIC TONS ORE/DAY. THE ORE WAS CRUSHED AND UPGRADED AT ONSITE MILL. MILL OUTPUT WAS ABOUT 56 METRIC TONS CHROMITE CONCENTRATE/ DAY. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 14-DEC-1994 | Rfb | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.