ChiastoliteColdwater Canyon Chiastolite locality, End of La Altura Road roadcut, Coldwater Canyon, Beverly Hills, Santa Monica Mts, Los Angeles Co., California, USA
Latitude: 34°5'28"N
Longitude: 118°24'17"W
An occurrence located in central W½S½SW¼SE¼ sec. 12, T1N, R15W, SBM, 2.0 km (6,600 feet) NNW of Beverly Hills.
Abundant crystals of andalusite variety chiastolite, up to 8 cm. in length, were found in spotted cordierite slates of the Santa Monica slate, in a road cut near the end of Altura Road. The crystals are often altered to fine fibrous aggregates of muscovite.
Mineralization is hosted in slates.
References
Hoots, Harold William (1931), Geology of the eastern part of the Santa Monica Mountains, Los Angeles County, California: USGS PP 165C: 88.
Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 20.
Neuerberg, George J., (1951), Minerals of the Eastern Santa Monica Mountains, Los Angeles City; American Mineralogist, vol. 36, pp. 156-160 (online at: [
http://www.minsocam.org/ammin/AM36/AM36_156.pdf]).
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 73.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 450.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 447, 450.
Mineral List
6 entries listed. 5 valid minerals.
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