Crestmore quarries, Crestmore, Riverside Co., California, USA
|Latitude & Longitude (WGS84):||34° 1' 25'' North , 117° 23' 2'' West|
|Latitude & Longitude (decimal):||34.02361,-117.38389|
|Köppen climate type:||Csa : Hot-summer Mediterranean climate|
Two irregular, very roughly parallel, lenticular bodies of magnesium-rich limestone of Mississippian age were deposited, each approximately 400 feet thick, and whose principal portions have dips up to 45° E or ENE. The prevalent N or NNW strike conforms to the trend of the Peninsular Range to the south, and is almost perpendicular to that of certain other metamorphic rocks near Riverside (Woodford et al., 1941).
The lower is the Chino Limestone and the upper is the Sky Blue Limestone. They are separated by gneissic hornfelses, quartz-mica schists and diorite. The beds were metamorphosed and recrystallized into marble during the early Triassic. Several later magmatic intrusions produced a complex suite of contact metamorphic minerals.
The first intrusion was of quartz diorite that penetrated the Chino Limestone. The second intrusion was of a quartz monzonite porphyry that was responsible for the classic contact metamorphism and skarn mineralogy. This latter intrusion was comprised of two pipe-like structures, ranging from 200 to 300 feet diameter. The first pipe intruded the quartz diorite and the Sky Blue Limestone. The second pipe pushed up through the metasedimentary rocks and terminated in the Sky Blue Limestone (Forrester, 2004). Numerous large and small pegmatite dikes cut the quartz monzonite porphyry and extend into the adjacent rocks, especially into the great masses of garnet-rich contact rocks which have developed from the original limestone (Woodford et al., 1941). The end result was a high-temperature, low-pressure contact aureole with marbles, skarn and pegmatites.
For more information, see the Crestmore page (http://www.mindat.org/loc-15527.html).
Mindat ArticlesWightmanite by Richard Gunter
Mineral ListMineral list contains entries from the region specified including sub-localities
161 valid minerals. 8 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 1 erroneous literature entry.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
0 - 0.0117 Ma
Age: Anthropocene (0 - 0.0117 Ma)
Description: Sand, gravel, and bedrock from pits, quarries, and excavations related to construction, mining, or quarrying activities; mapped primarily where materials are placed for construction of highways, canals, railway grades, dams, and water catchment basins. Only large features are mapped; not shown in some places where unit obscures detailed surficial or bedrock relations. Differs from disturbed ground (Qdg) in that generally large amounts of rock and (or) sediment have been imported to site
Reference: Morton, D.M., F.K. Miller . Geologic Map of the San Bernardino and Santa Ana 30' x 60' quadrangles, California. U.S. Geological Survey Open-File Report 2006-1217. 
|Holocene - Pliocene|
0 - 5.333 Ma
|Quaternary alluvium and marine deposits|
Age: Cenozoic (0 - 5.333 Ma)
Stratigraphic Name: Temescal Formation; Modesto Formation; Victor Formation; Alameda Formation; Aromas Red Sands; Bautista Beds; Brawley Formation; Borrego Formation; Burnt Canyon Breccia; Cabezon Fanglomerate; Campus Formation; Casitas Formation; Chemehuevi Formation; Corcoran Clay; Cushenbury Springs Formation; Dos Picachos Gravels; Dripping Springs Formation; Frazier Mountain Formation; Friant Formation; Harold Formation; Heights Fanglomerate; Hookton Formation (part); Huichica Formation; La Habra Formation; Manix Lake Beds; Mohawk Lake Beds; Montezuma Formation; Nadeau Gravel; Ocotillo Conglomerate; Orcutt Formation; Pacoima Formation; Pauba Formation; Peckham Formation; Pinto Formation; Resting Springs Formation; Riverbank Formation; Rohnerville Formation; San Dimas Formation; Shoemaker Gravel; Temecula Arkose; Battery Formation; Bay Point Formation; Colma Formation; Lindavista Formation; Lomita Marl; Merritt Sand; Millerton Formation; Palos Verdes Sand; San Pedro Formation; Sweitzer Formation; Timms Point Silt
Description: Alluvium, lake, playa, and terrace deposits; unconsolidated and semi-consolidated. Mostly nonmarine, but includes marine deposits near the coast.
Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. 
Localities in this Region
Eakle, A.S. and Rogers, A.F. (1914) Wilkeite, a new mineral of the apatite group and okenite, its alteration product. American Journal of Science: 37: 262-267
Eakle, A.S. (1914) Some contact metamorphic minerals in crystalline limestone at Crestmore (abstract). Geological Society of America Bull.: 25: 125.
Eakle, A.S. (1916) Xanthophyllite in crystallinbe limestone. Journal of the Washington Academy of Science 6: 332-335.
Eakle, A.S. (1917) Minerals associated with crystalline limestone at Crestmore, Riverside County, California. University of California Bull. Department of Geology: 10: 327-360.
Rogers, A.F. (1918b) An American occurrence of periclase and its bearing on the origin and history of calcite-brucite rocks. American Journal of Science: 46: 581-586.
Eakle, A.S. (1920) New and rare minerals formed in limestone by contact metamorphism (abstract). Geological Society of America Bull.: 31: 162-163.
Foshag, W.F. (1920a) Thaumasite (and spurrite) from Crestmore, California. American Mineralogist: 5: 80-81.
Foshag, W.F. (1920d) Plazolite, a new mineral from Riverside, California. American Mineralogist: 5: 183-185.
Eakle, A.S. (1921) Jurupaite, a new mineral. American Mineralogist: 6: 107-109.
Larsen, E.S. and Foshag, W.F. (1921) Merwinite, a new calcium-magnesium orthosilicate from Crestmore, California. American Mineralogist: 6: 143-148.
Foshag, William Frederick (1924c), Centrallasite from Crestmore, California: American Mineralogist: 9: 88-90.
Eakle, A.S. (1925) Foshagite, a new silicate from Crestmore, California. American Mineralogist: 10: 97-99.
Eakle, A.S. (1927) Famous mineral localities: Crestmore, Riversdie County, California. American Mineralogist: 12: 319-321.
Tilley, C.E. (1928) On a custerite-bearing contact rock from California Geology Magazine: 65: 371-372.
Rogers, A.F. (1929) Periclase from Crestmore near Riverside, California, with a list of minerals from this locality. American Mineralogist: 14: 462-469.
Daly, John W. (1933),Paragenesis of mineral assemblages at Crestmore, California (abstract): Pam American Geologist: 59:312-313; […Geological Society of America Proceedings 1933: 1: 311 (1934); …American Mineralogist: 20: 638-659 (1935)].
Dunham, K.C. (1933) A note on the texture of the Crestmore contact rocks. American Mineralogist: 18: 474-477.
Larsen, E.S. and Dunham, K.C. (1933) Tilleyite, a new mineral from the contact zone at Crestmore, California. American Mineralogist: 18: 469-473.
Moehlman, R.S. and Gonyer, F.A. (1934) Monticellite from Crestmore, California. American Mineralogist: 19: 474-476.
Daly, J.W. (1935) Paragenesis of the minerals a Crestmore, Riverside County, California. American Mineralogist: 20: 638-659.
Peacock, Martin Alfred (1935), On wollastonite and parawollastonite American Journal of Science, 5th. series: 30: 495-529.
Merriam, R. and Laudermilk, J.D. (1936) Two diopsides from southern California. American Mineralogist: 21: 715-718.
Daly, John W. (1937), The Crestmore locality: Pacific Mineralogist: 4(1): 29-32.
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; ellestadite, the end-member: American Mineralogist: 22: 977-986.
Murdoch, J. and Webb, R.W. (1938) Notes on some minerals from southern California. American Mineralogist: 23: 349-355.
Bradley, W.W. (1939), Thirty-fifth report of the State Mineralogist: California Division Mines Report 35: 498.
Rogers, Austin Flint (1939), Monticellite rock from Crestmore, California (abstract): American Mineralogist: 24: 192.
Woodford, A.O., Lauderilk, J.D. and Bailey, E.H. (1940) Treanorite, a new mineral from Crestmore, California (abstract). Bulletin of the Geological Society of America: 51: 1965.
Bradley, W.W. (1941), Thirty-seventh report of the State Mineralogist: California Division Mines Report 37: 194.
Woodford, A.O., Crippen, R.A. and Garner, K.B. (1941) Section across Commercial Quarry, Crestmore, California, American Mineralogist: 26: 351-381.
Woodford, A.O. (1943), Crestmore minerals: California Division Mines Report 39: 333-365.
Tilley, Cecil Edgar (1947), Cuspidine from dolomite contact skarns, Broadford, Skye: Mineralogical Magazine: 28: 90-95.
Rosenholtz, Joseph Leon & Dudley T. Smith (1950): Crestmore sky-blue marble, its linear thermal expansion and color: American Mineralogist: 35: 1049-1054.
Murdoch, Joseph (1951a), Unit cell of hydromagnesite: (abstract): Geological Society of America Bulletin: 62: 1465;
Murdoch, Joseph (1951b), Perovskite from California: (abstract) Geological Society of America Bulletin: 60: 1911; […(abstract): American Mineralogist: 35: 287; …American Mineralogist: 36: 573-580]: 573.
Burnham, C. W. (1954), Contact metamorphism at Crestmore, California: California Division Mines & Geol. Bulletin 170, Ch. VII: 61-70.
Murdoch, Joseph (1954a), The unit cell of hydromagnesite: (abstract): American Mineralogist: 37: 296-297; […American Mineralogist: 39: 24-29 (1954)].
Gard, John Alan & H.F.W. Taylor (1956), Okenite and nekoite: Mineralogical Magazine: 31: 5-20.
Heller, L. & H.F.W. Taylor (1956), Crystallographic data for the calcium silicates, H.M. Stationery Office, 79 pp.: 34.
Jenni, Clarence M. (1957), Crestmore and its minerals: Gems & Minerals, No. 236: 64, 66 (May, 1957).
Jenni, Clarence M. (1957), Crestmore and its minerals: Gems & Minerals, No. 237: 38-40 (June 1957): 36, 38.
Jenni, Clarence M. (1957), Crestmore and its minerals: Gems & Minerals, No. 238: 34-79 (July 1957).
Jenni, Clarence M. (1957), Crestmore and its minerals: Gems & Minerals, No. 239: 50 (August 1957): 50.
Jenni, Clarence M. (1957), Crestmore and its minerals: Gems & Minerals, No. 240: 46 (September 1957).
Strunz, H. and Micheelsen, H. (1958) Calcum-phyllosilicate. Naturwissenschaften: 21: 515-516.
Burnham, C.W. (1959) Contact metamorphism of magnesian limestones at Crestmore, California. Bulletin of the Geological Society of America: 70: 879-920.
Anonymous (1960), World news on mineral occurrences: Rocks & Minerals: 35: 462.
Murdoch, Joseph & Robert A. Chalmers (1960), Ettringite (“woodfordite”) from Crestmore, California: American Mineralogist: 45: 1275-1278.
Murdoch, J. (1961) Crestmore, past and present. American Mineralogist: 46: 245-257.
Schaller, Waldemar Theodore & Angelina Calomeris Vlisidis (1961), The composition of aluminian Ludwigite from Crestmore, California: American Mineralogist: 46: 335-339.
Carpenter, A.B. (1962), Mineral assemblage, magnesium calcite-aragonite-huntite at Crestmore, California (abstract): Geological Society of America Program of Annual Meeting, 1961, Nov 2-4, Cincinnati, Ohio: 22A; ibid. Special Paper 68: 146 (1962).
Murdoch, Joseph (1962a), Wightmanite, a new borate mineral from Crestmore, California: American Mineralogist: 47: 718-722.
Berry, Leonard G. (1963a), The unit cell of ettringite: American Mineralogist: 48: 939.
Carpenter, A.B. (1963), Oriented Overgrowths of thaumasite on ettringite: American Mineralogist: 48: 1394-1395.
Segnit, Ralph E. & C.J. Lancucki (1963), Fluoborite from Crestmore, California: American Mineralogist: 48: 278-282.
Carpenter, A.B., R.A. Chalmers, J.A. Gard, K. Speakman & H.F.W. Taylor (1966), Jennite, a new mineral: American Mineralogist: 51: 56-74.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 60, 64, 82, 87, 92, 94, 111, 115, 118, 144, 151, 152, 164, 165, 166, 172, 174, 176, 183, 185, 195, 207, 220, 235, 245, 246, 253, 255, 269, 272, 273, 274, 278, 280, 282, 285-286, 295, 302, 307, 312, 315, 317, 319, 328, 332, 334, 335, 336, 337, 343, 344, 345, 347, 348, 352, 364, 365, 366, 367, 368, 371, 381, 384, 387, 390, 391, 392, 393.
Kinsman, D.J.J. (1967) Huntite from a carbonate evaporate environment. American Mineralogist: 52: 1332-1340.
Wilkins, R.W.T. and Sabine, W. (1973) Water content of nominally anhydrous silicates. American Mineralogist: 58: 512-513.
Vlisidis, A.C. and Schaller, W.T. (1974) The identity of paigeite with vonsenite, and chemical analysis of vonsenite, ludwigite and hulsite. Neues Jahrbuch für Mineralogie, Monatshefte 1974(3-4): 95-105.
Hindman, J.R. (1976) Stringhamite, a new hydrous calcium silicate from Utah. American Mineralogist: 61: 189-192.
American Mineralogist(1982): 67: 90-92.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 55, 72, 76, 77, 80, 85, 86, 90, 94, 97, 132, 134, 146, 150, 161, 174, 182, 200, 204, 211, 216, 221, 222, 226, 229, 231, 236, 237, 265, 300, 316, 325, 356, 348, 361, 367, 368, 372, 374, 380, 384, 387, 398, 401, 406, 409, 426, 428, 430, 431, 435, 440, 441, 444, 461, 475-476, 477, 478, 479, 483, 486, 490, 494, 497, 502, 503, 507, 508, 514, 515.
Jaszczak, J.A. (1991) Graphite from Crestmore, California. Mineralogical Record: 22(6): 427-432.
Veblen, D.R. and Wiechmann, M.J. (1991) Domain structure of low-symmetry vesuvianite from Crestmore, California. American Mineralogist: 76: 397-404.
Grew, E.S., Yates, M.G., Adams, P., Kirkby, R. and Wiedenbeck, M. (1999) Harkerite from the Crestmore Quarry, Riverside County, California and Cascade Slide, Adirondack Mountains, New York: A contrast in metamorphic pressure. Canadian Mineralogist: 37: 277-296.
Forrester, C. (2004) Large clintonite crystals from the Crestmore Quarry, Riverside, California. Mineralogical Record: 35(4): 325-330.
RRUFF ID: R060769 (Hydroxylellestadite)