Crestmore, Riverside Co., California, USA

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The town of Crestmore is famous for the extensive list of minerals that occur there, as quarried and mined in the several quarries located on two local hills, The Chino Hill and the Sky Blue Hill.

The Crestmore quarries operated until 1986. Many hundreds of thousands of tons of rock were removed from them during the 1940's, much was removed earlier, and also later. Operations ceased when water flow resulted in prohibitively high pumping costs.

A list of references is provided under the locality file for the Crestmore Quarries, and under each separate quarry or mine file.

Mineral List

Mineral list contains entries from the region specified including sub-localities

Acanthite Actinolite Aegirine Afwillite Albite var: Andesine var: Oligoclase 'Allanite' Allanite-(Ce) Almandine Amphibole Supergroup var: Uralite Andradite Anglesite Anorthite var: Bytownite var: Labradorite 'Apatite' 'Apophyllite' Aragonite Arsenopyrite Augite 'Axinite Group' Azurite Bayldonite 'Biotite' Bornite Brucite Bultfonteinite Calcite 'Cebollite' Celestine Cerussite 'Chabazite' Chalcocite Chalcopyrite 'Chlorite Group' Chondrodite Chromite Chrysocolla Chrysotile Clinochlore Clinohumite Clinozoisite Clintonite Corundum 'Crestmoreite' Cristobalite Cuprite Cuspidine Danburite Datolite 'Deweylite'

'Diallage' Diopside Dolomite Dravite 'Ellestadite' 'Ellestadite-(Cl)' (TL) Epidote Epistilbite Ettringite Fluoborite Fluorellestadite var: Wilkeite Forsterite Foshagite (TL) Gahnite Galena Ganomalite 'Garnet' Gehlenite Geikielite Goethite Gonnardite Graphite Greenockite Grossular var: Hibschite var: Plazolite 'Grossular-Hibschite Series' Gypsum var: Selenite Gyrolite Harkerite Hawleyite Hedenbergite Hematite Hemimorphite Hercynite 'Heulandite' Hillebrandite 'Hornblende' Humite Huntite Hydrocalumite Hydromagnesite Hydrotalcite 'Hydrotroilite' Hydroxylellestadite Hydrozincite 'Hypersthene' Ilmenite Jennite (TL) Laumontite

Laumontite var: Caporcianite 'Limonite' Lizardite Löllingite Magnesioferrite Magnesite Magnetite Malachite Margarite Meionite Melanterite 'Melilite' Merwinite (TL) Microcline Mimetite Minium Molybdenite Monticellite Montmorillonite Mordenite Mottramite Muscovite var: Sericite Nadorite Nasonite Natrolite Nekoite (TL) Nontronite Okenite Opal var: Opal-AN Orpiment Orthoclase Oyelite Pargasite Periclase Perovskite 'Phillipsite' Phlogopite Plattnerite Plombièrite Powellite Prehnite Pyrite Pyromorphite Pyrrhotite Quartz var: Chalcedony Realgar Riversideite (TL) Rutile Safflorite

'Scapolite' Scawtite Scheelite Schorl Scolecite Sepiolite Serendibite 'Serpentine Group' Siderite Smithsonite Sphalerite Spinel var: Ceylonite Spurrite Sternbergite Stibnite 'Stilbite' Stilbite-Ca Stringhamite Strontianite Szaibélyite Tennantite Tenorite Tetrahedrite Thaumasite 'Thomsonite' Thomsonite-Ca Thorite var: Orangite Thorogummite Tilleyite (TL) Titanite Tobermorite 'Tourmaline' Tremolite Uranophane Uvarovite Vermiculite Vesuvianite var: Californite Vonsenite (TL) Whelanite Wightmanite (TL) Wollastonite 'Wollastonite-1T' 'Wollastonite-2M' Wulfenite 'Xanthochroite' Xonotlite 'Zinnwaldite' Zircon Zoisite var: Thulite

216 entries listed. 160 valid minerals. 8 type localities (valid minerals). 1 type locality (other).

Localities in this Region

USA California Riverside Co. Crestmore Crestmore quarries Chino Hill Chino Quarry Chino underground mine Fairmont Park North Hill Old City Quarry (City Quarry)

USA California Riverside Co. Crestmore Crestmore Quarries New City Quarry Sky Blue Hill Commercial quarry Lone Star Quarry Wet Weather Quarry