The petrology and mineralogy of the pegmatite complex at Bismuth, Torrington, N.S.W.
作者:
L. J. Lawrence,
N. L. Markham,
期刊:
Journal of the Geological Society of Australia
(Taylor Available online 1963)
卷期:
Volume 10,
issue 2
页码: 343-364
ISSN:0016-7614
年代: 1963
DOI:10.1080/00167616308728552
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The pegmatite complex of epi‐Permian age at Bismuth near Torrington, N.S.W., consists of an elongated intrusion of a granitoid quartz‐topaz rock (silexite) together with a series of pegmatites of varying composition. The principal pegmatite consists of orthoclase, biotite, quartz and beryl with concentric zoning passing outwards into fine‐grained biotite‐beryl rock containing a number of ore minerals: arsenides of Co, Fe and Ni, wolframite, bismuth, bismuthinite, molybdenite, joseite, cassiterite, rutile, uraninite and monazite. Small pegmatite veins issuing from this main body contain, in addition to the silicate minerals, high temperature tetrahedrite, chalcopyrite and sphalerite. A second group is characterised by quartz, orthoclase and beryl with occasional patches of tourmaline.
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