Crestmore quarries
Crestmore, Jurupa Valley, Riverside County, California, USA
A small group of quarries near Crestmore, which produced a range of interesting minerals.
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The site is a series of quarries worked on two hills, the Chino Hill and the Sky Blue Hill.
Sites from this locale may be labelled as any of the following:
Chino Hill
- Chino Quarry
- Chino underground mine
Sky Blue Hill
- Commercial Quarry
- Lone Star Quarry
- Wet Weather Quarry
The combined quarries are the type locality for 9 different minerals, including fluorellestadite, foshagite, jennite, merwinite, nekoite, riversideite, tilleyite, wayneburnhamite, and wightmanite.
Some of the specimens of yellow fluorellestadite in blue calcite are especially interesting, as is the vesuvianite, wollastonite, and garnet found here.
As of 2022 it appears the site is being levelled, and further workings in the area are unlikely.
Further reading
- https://www.mindat.org/loc-3449.html
- http://www.minsocam.org/MSA/collectors_corner/arc/crestmoreca1.htm
- https://data.caltech.edu/records/7mmzc-1ha33