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Minbrie. Progress reports for the period 28/6/1973 to 27/6/1975.
Reports describe the ongoing field prospecting and downstream jade marketing activities associated with the Cowell nephrite jade discovery. Black nephrite blocky material extracted from the operating company's new mining leases (MLs 4130-4132) was...-
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Published: 09 Aug 1975
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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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RB 85/00020 Genesis of jade and host rocks in DDH14 at outcrop 15 Cowell Jade Province, South Australia.
The jade is produced by series of episodes of recrystallization and replacement during the retrograde metamorphism of prograde amphibolite facies assemblages in impure carbonate sediments. The quality is partly controlled by the original sediment...-
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Published: 01 Apr 1985
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RB 81/00114 Structural and metamorphic controls on the origin of nephrite jade near Cowell, SA.
1 of the worlds principal nephrite jade deposits was formed during a late phase tectonic event, involving cross-warping and fracturing of high grade metamorphic complex.-
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Published: 01 Nov 1981
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RB 89/00051 Cowell Jade Province: Detailed geological mapping and diamond drilling of jade and ornamental marble outcrops, 1982-1987. Volume 1.
Detailed mapping undertaken between 1982 and 1987 of 48 known jade outcrops located in the Cowell - Cleve area, and diamond drilling of 3 jade outcrops and 2 ornamental marble prospects, has identified many factors controlling nephrite formation. The...-
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Published: 01 Jan 1992
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RB 88/00054 Cowell Jade - A middle Proterozoic, marble-hosted, nephrite jade deposit.
Brief review of the deposit is presented, including regional geology, ore deposit features, production, history, quality, value, reserves and mining methods. It is the largest known high quality nephrite jade deposit in the world.-
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Published: 01 Jul 1988
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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...-
Document
Published: 08 Dec 1980
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Cowell Jade Province: rock sample petrographic descriptions.
A collection of Amdel petrographic reports providing raw data for a petrogenetic study of Cowell area jade specimens and related host rocks carried out by SADME, aimed at determining geological controls on the distribution of high quality nephrite...-
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Published: 01 Jan 1990
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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...-
Document
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...-
Document
Published: 01 Jan 1977
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RB 74/00216 Colour of nephrite jade from Cowell.
Nephrite jade is associated with an isoclinatly folded dolomitic marble and calc-silicate rock horizon in the metasedimentary upper "Gneiss" Complex of the Cleve Metamorphics (Precambrian) near Cowell. Detailed geological, petrographic and chemical...-
Document
Published: 20 Nov 1974
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RB 74/00215 Nephrite jade deposits, Cowell, South Australia (proposed letter to Nature).
There is no abstract created for this record-
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Published: 01 Jan 1974
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RB 2007/00022 [South Australian earth] resources production [statistics] for the 6 month [period] ended [30] June 2007.
This report presents detailed industry-derived statistics on the State's output and sales values of earth resource commodities realised during the six month period ended 30 June 2007, and compares the data with that returned for the previous six...-
Document
Published: 01 Nov 2007
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RB 2012/00011 South Australian mineral resources production statistics for the six month [period] ended 31st December 2011.
There is no abstract created for this record-
Document
Published: 01 May 2012
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RB 2010/00009 [South Australian mineral] resources production statistics for the 6 month [period] ended 31 December 2009.
This report presents detailed industry-derived statistics on the State's output and sales values of earth resource commodities realised during the six month period ended 31 December 2009, and compares the data with that returned for the previous six...-
Document
Published: 07 May 2010
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RB 2009/00021 [South Australian] mineral resources production statistics for the 6 month [period] ended 30 June 2009.
This report presents detailed industry-derived statistics on the State's output and sales values of earth resource commodities realised during the six month period ended 30 June 2009, and compares the data with that returned for the previous six...-
Document
Published: 03 Nov 2009
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Cowell nephrite deposit. Consultant's geological appraisal reports (including a progress report about detailed mapping of nephrite pods on Schiller's leases), compiled over the period June to November 1970.
A mining consultant was engaged by mineral claim option holder Murumba Minerals to assess the commercial potential of a rare (for Australia) grouping of lens style nephrite deposits located about 20 km north of Cowell, which had only been mined on a...-
Document
Published: 11 Nov 1970
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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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RB 2011/00008 South Australian mineral resource[s] production statistics for the six month [period] ended 31st December 2010.
This report presents detailed industry-derived statistics on the State's output and sales values of earth resource commodities realised during the six month period ended 31 December 2010, and compares the data with that returned for the previous six...-
Document
Published: 20 May 2011
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RB 2008/00015 South Australian mineral resource production statistics for the 6 month [period] ended [30] June 2008.
This report presents detailed industry-derived statistics on the State's output and sales values of earth resource commodities realised during the six month period ended 30 June 2008, and compares the data with that returned for the previous six...-
Document
Published: 19 May 2008
