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Triplite from
Stewart Mine (MS 6162; Stewart Lithia mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego Co., California, USA

Locality type:Mine
Comments:Triplite occurs sparingly in the Stewart pegmatite, where it is associated with lithiophilite and triphylite. It forms crystals with rough faces, measuring 1/4 inch to 5 inches in diameter, with an average of about an inch. The mineral also occurs as tabular, fracture-filling masses within quartz, and rarely within coarse quartz-spodumene or quartz-perthite varieties of pegmatite. Most crystals are heavily stained with manganese oxides, and many are coated with a blue-gray film of very finely crystalline vivianite. The vivianite appears to have been derived from the triplite crystals.
Habit:Tabular and fracture-filling masses with rough faces; cleavage is fairly well developed.
Colour:Deep-tan to dark reddish-brown on freshly broken surfaces; resinous luster.
Abundance at site:Rare
Validity:Believed Valid
References:Kunz, G. F. 1905. Gems, jeweler's materials, and ornamental stones of California. California State Mining Bureau bulletin 37: pages 124-125; 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: 31, 41.
Mineral Data:Click here to view Triplite data
Locality Data:Click here to view Stewart Mine (MS 6162; Stewart Lithia mine), Tourmaline Queen Mountain (Pala Mtn; Queen Mtn), Pala, Pala Mining District, San Diego Co., California, USA
Nearest other occurrences of Triplite
44.5km (27.7 miles) Surprise Mine, Ramona, Ramona Mining District, San Diego Co., California, USA
Mineral and/or Locality  
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