Location: | Contra Costa County, California, United States, North America |
Lat / long: | 37.9574, -121.8841 |
dep_id: | 10029544 |
mrds_id: | M007151 |
Commodity type: | metallic |
Major mineral: | Silica |
Operation type: | Unknown |
Production size: | Small ammount of material produced |
Development status: | Producer |
ore: | Sand |
Reporter: | Gere, W. |
References: |
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