California · Marin County
Occurrence
Massa Hill
Marin County, California, United States
Gemstone
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USGS source ↗
Commodities
Primary
Gemstone
Commodity type
N
Deposit
Deposit size
N
Economic & production
Development status
Occurrence
Discovery year
1950
Identification
Deposit ID
10030798
MRDS ID
M009218
Region
NA
Data score
D
Coordinates
38.17767, -122.67578
References
CALIF. JOUR. MINES & GEOL. V. 51, NO. 3, JULY 1955, P. 259, 280, PL. 4DOM SPEC. REPORT 10-B, 1951.