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RB 78/00065 Nephrite jade deposits near Cowell. Report no. 2 - Trial mining and evaluation of the jade.
Cowell jade province contains 100 outcrops. The nephrite jade is associated with isoclinally folded dolomitic marble and calc silicate horizon in the upper Gneiss Complex of the Early Proterozoic Cleve Metamorphics. Discusses mining methods and quality.-
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Published: 01 Jan 1978
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Cowell nephrite deposit. Technical appraisal reports submitted during the period 1970 to 1988.
A consultant geologist's reports prepared in 1970 for by mining lease optionholder Murumba Minerals NL describe his detailed mapping of the then known jade (nephrite) deposits within the Cowell Jade Province. Two potentially mineable deposits were...-
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Published: 08 Dec 1980
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A gemmological assessment of the nephrite jade deposits near Cowell, South Australia.
Nephrite jade is associated with Lower Proterozoic dolomitic marbles and calc-silicate rocks as part of a sequence of metasedimentary quartzo-feldspathic gneisses, quartzites and mica schists of amphibolite metamorphic facies. These rocks normally...-
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Published: 08 Dec 1980
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RB 74/00201 Nephrite jade deposits near Cowell, Eyre Peninsula.
Nephrite jade is associated with an isoclinally folded dolomitic marble and calc-silicate rock horizon in the upper Gneiss Complex of the Cleve Metamorphics (Lower Proterozoic) near Cowell. Nephrite jade is known only within the nine square...-
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Published: 01 Jan 1977
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HandBk 004 - Some Semi-Precious and Ornamental Stones of South Australia. Barnes, L.C., et al. 1980 Australia. (reprinted version)
This handbook is a selection of shortened reports by geologists of the South Australian Department of Mines and Energy dealing with some of the semiprecious and ornamental stones in this State. It is not intended to be a comprehensive review of these...-
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