![]() ![]() Many pegmatites are exposed also on Little Chief Mountain to the south, but no mining and very little prospecting have been done there. These minerals have been recovered also in several prospects and small mines elsewhere on this hill, where the number of pegmatite dikes is considerably greater than on Queen Mountain to the west. In addition it has yielded gem beryl and some gem tourmaline. The Pala Chief mine, on Chief Mountain, has been the world’s greatest source of gem spodumene. Most of these dikes are listed in table 2. Three pegmatite dikes, the Tourmaline King, Tourmaline Queen, and Stewart, have been extensively mined, and many others have been prospected or mined on a small scale. Another, the Tourmaline Queen, has been the leading source of pink, green, and blue tourmaline in the district. One deposit, the Stewart, has yielded more than 20,000 tons of lepidolite, some amblygonite and other lithium minerals, bismuth minerals, and a remarkable suite of phosphate minerals. The pegmatites on Queen Mountain, westernmost and largest of the four mountains, are best known as commercial sources of lithium minerals, gem tourmaline, and quartz crystals. Principal output of minerals other than lepidolite is gem and specimen material. Landslides from Vanderburg-Katerina dike groupī Listed from north to south, within each dike or dike group.Ĭ Does not include material obtained by mineral collectors. Spodumene, lepidolite, beryl, quartz, tourmaline Vanderburg (Naylor-Venderburg, Sickler) mine Principle pegmatite dikes, mines, and prospects in main part of Pala district These mountains and most of the pegmatites exposed thereon are shown on plate 2. Within the district, most of the deposits of known commercial interest lie north and northeast of Pala, on the slopes and crests of Queen Mountain, Chief Mountain, Little Chief Mountain, and Hiriart Mountain. Other pegmatites are scattered through the surrounding area. The belt extends from Pala Canyon south-southeastward to the southern base of Pala Mountain, and within it are exposed at least 400 pegmatite dikes. ![]() The pegmatites in the Pala district occur in a curving belt that occupies an area of about 13 square miles. Katerina (Ashley, Catherina, Katrina) mine Origin of the pegmatites ECONOMIC FEATURES OF THE PEGMATITE MINERALSįuture possibilities DESCRIPTIONS OF SELECTED MINES Acknowledgments PHYSICAL FEATURES HISTORICAL SKETCH GEOLOGY ![]()
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