 | | Journal (article/letter/editorial) | | the 120 ROCKS & MINERALS Wendy pit at the Tambo mine is associated with hydrothermal breccias that have...and anthraxolite are common in pockets but usually do not form well-crystallized specimens of interest...MINERALS FROM THE SKARN OF MINA BREJUI, RIO GRANDE DO NORTE, BRAZIL. A. U. Fedster’, L. B. dn Silvn Neil2...Pernambuco, Brazil. Unusual small pyrite crystals occur in the skarn of Mina Brejui near Currais Novos in the...the state of Rio Grande do Norte, Brazil. The skarn body is presently being mined for tungsten. Among |  | | Journal (issue) | | page 2 Tungstenite and Associated Minerals from the Skarn of Mina Brejui, Rio Grande do Norte, Brazil...Boa Viagem, 51021-310 Recife, Pernambuco, Brazil • Tungstenite is a relatively rare mineral and occurs...the Emma Mine, Little Cottonwood District, Salt Lake Co., Utah. In most locations, tungstenite occurs only...Crevola d'Ossola is a notable exception, as here tungstenite occurs as lamellar crystals up to 2 mm in diameter...New Orleans, organized a three week fieldtrip to Brazil. The major goal was to study granitic pegmatites |  | | Report (volume) | | based on considerations that extend far beyond the mine itself, in some instances relating to the overall...another. This goal is difficult to attain, because we do not always know which features are site specific...subject, as in a scale model of the workings of a mine, to a unifying concept that explains or describes...Valley type is the presence of secondary dolomite. But do we know that this is essential? Suppose a deposit...figures; nevertheless, the grade-tonnage figures given do represent material that the company or the government |
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