| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Woodford, A.O. (1943), Crestmore minerals: California Division Mines Report 39: 357. Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmore, California. American Mineralogist: 26: 351-381. Vigfussen, V.A. (1931), The system CaO-SiO2-H2O, hillebrandite and foshagite. American Journal of Science, 5th series: 21: 76. Eakle, Arthur S. (1925) Foshagite, a new silicate from Crestmore, California. American Mineralogist, 10 (4) 97-99 Van Nostrand Reinholt Press: 477. |
Commercial Quarry, Sky Blue Hill, Crestmore quarries, Crestmore, Jurupa Valley, Riverside County, California, USA