Perlite occurrence · San Bernardino County, California
| State | California |
| County | San Bernardino |
| Coordinates | 35.16940, -117.20368 |
| Primary | Perlite |
| Status | Occurrence |
| Type | Surface |
| Data Source | USGS MRDS |
| Source ID | 10262343 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Unnamed Prospect (San Bernardino County) | 0.2 mi | Perlite | Prospect |
| Unnamed Prospect (San Bernardino County) | 0.4 mi | Semiprecious Gemstone | Prospect |
| Unnamed Prospect near Lenwood, CA | 0.8 mi | Perlite | Prospect |
| Unnamed Prospect near Lenwood, CA | 1.1 mi | Semiprecious Gemstone | Prospect |
| American Opal Co. Prospect | 1.3 mi | Semiprecious Gemstone | Prospect |
| Opal Mountain Clinoptilolite | 1.3 mi | Zeolites | Prospect |
| Unnamed Prospect (San Bernardino County) | 1.3 mi | Perlite | Prospect |
| Unnamed Prospect (San Bernardino County) | 1.4 mi | Talc-Soapstone | Occurrence |
| Unnamed Quarry (San Bernardino County) | 1.4 mi | Stone, Dimension | Past Producer |
| Opal Mountain Agate Field | 1.5 mi | Semiprecious Gemstone | Prospect |
| Unnamed Quartz Quarry near Lenwood, CA | 1.5 mi | Silica | Occurrence |
| Unnamed Prospect (San Bernardino County) | 1.5 mi | Semiprecious Gemstone | Prospect |
This location is classified as a mineral prospect or occurrence — a site where minerals have been identified but no significant mining has taken place. These sites typically have minimal environmental impact but indicate the presence of mineral deposits in the area.