Unknown
Punta Negra Deposit
Philippines
Manganese
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USGS source ↗
Commodities
Tertiary
Manganese
Commodity type
M
Economic & production
Development status
Unknown
First production
1916
Discovery year
1906
Identification
Deposit ID
10158841
Region
AS
Data score
D
Coordinates
18.49981, 120.83259
References
KEELER, R.; THE PHILIPPINES-A NEW SOURCE OF MANGANESE; ENGIN& MINING JOURNAL; MAY 1938; PGS. 29-30.PHILIPPINES BUREAU OF MINES; INFORMATION CIRCULAR NO. 19; 19