Wet Weather Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Riverside Co., California, USA

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Exceptionally clear intrusive relationships, and the only example of the sharp segregation of the contact minerals into distinctive zones, were to be seen on the south wall of this quarry in the group (Am.Min.: 26: 352-381).

This quarry was deepened and extended from 1940 until 1954.

References

Eakle, Arthur Starr (1917), Minerals associated with the crystalline limestone at Crestmore, Riverside County, California: University of California Department of Geological Sciences Bulletin: 10: 327-360; […(abstract): Geol. Zentralbl., Band 29: 514 (1923)]: 348.

Rogers, Austin Flint (1918b), An American occurrence of periclase and its bearing on the origin and history of calcite brucite rocks: American Journal of Science, 4th. Series: 46: 581-586.

Larsen, Esper Signius & William F. Foshag (1921), Merwinite, a new calcium magnesium orthosilicate from Crestmore, California: American Mineralogist: 6: 143-148.

Rogers, Austin Flint (1929), Periclase from Crestmore near Riverside, California, with a list of minerals from this locality: American Mineralogist: 14: 462-469.

Daly, John W. (1935), Paragenesis of mineral assemblages at Crestmore, California American Mineralogist: 20: 638-659.

Kelley, Vincent Cooper (1937a), Notes on mineralization at Crestmore, California: American Mineralogist: 22: 140-141.

McConnell, Duncan (1937) The substitution of SiO4- and SO4-groups for PO4-groups in the apatite structure; ellastadite, the end-member. American Mineralogist: 22: 977-986.

Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 352-381.

Woodford, A.O. (1943), Crestmore minerals: California Division Mines Report 39: 333-365.

Gard, John Alan & H.F.W. Taylor (1956), Okenite and nekoite: Mineralogical Magazine: 31: 5-20.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 136, 222, 285, 305, 325, 350, 359.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 69, 130, 170, 200, 325, 434, 477.

Forrester, Curt (2004) Large Clintonite Crystals from the Crestmore Quarry Riverside, California. Mineralogical Record: July/August, 2004.

Mineral List

Albite var: Oligoclase Andradite Brucite Calcite Chalcopyrite 'Chlorite Group' Chondrodite Clinochlore Clintonite 'Crestmoreite'

Diopside 'Ellestadite' Fluorellestadite Gehlenite Graphite Grossular Hillebrandite Hydromagnesite 'Hydrotroilite' Limonite

Ludwigite ? Magnetite Merwinite (TL) Microcline Monticellite Nekoite (TL) Periclase Phlogopite Pyromorphite Pyrrhotite

Rutile 'Scapolite' Spurrite Stibnite Talc ? Thaumasite Tobermorite 'Tourmaline' Vesuvianite Wollastonite

40 entries listed. 32 valid minerals. 2 type localities (valid minerals).