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USA | |
| [var. Hessonite] Murdoch, Joseph & Webb, Robert W. (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 195. Kunz, George F. (1905) Gems, Jewelers' Materials, and Ornamental Stones of California. Bulletin 37 (2nd ed.) California State Mining Bureau |
| [var. Magnesium-bearing Grossular] Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Jahns, R. H. and Wright, L. A. (1951), Gem and Lithium-bearing pegmatites of the Pala District, San Diego County, California. California Division of Mines special report 7A: 34-35 Van Nostrand Reinholt Press: 498 |
- Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
| Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology Jahns, R. H. and Wright, L. A. 1951. Gem and Lithium-bearing pegmatites of the Pala District, San Diego County, California. California Division of Mines special report 7A, 72 pp.: 34-35 Van Nostrand Reinholt Press: 498 |
| Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology |
| [var. Magnesium-bearing Grossular] Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc. Jahns, R. H. and Wright, L. A. (1951), Gem and Lithium-bearing pegmatites of the Pala District, San Diego County, California. California Division of Mines special report 7A: 34-35 Van Nostrand Reinholt Press: 498 |