Australian Museum Journal Auriferous limonitic stalactites from the Bimbimbie Gold Mine, New South Wales

Shortform:
Lawrence, 1992, Rec. Aust. Mus., Suppl. 15: 39–43
Author(s):
Lawrence, L. J.
Year published:
1992
Title:
Auriferous limonitic stalactites from the Bimbimbie Gold Mine, New South Wales
Serial title:
Records of the Australian Museum, Supplement
Volume:
15
Start page:
39
End page:
43
DOI:
10.3853/j.0812-7387.15.1992.82
Language:
English
Date published:
16 October 1992
Cover date:
16 October 1992
ISBN:
ISBN 0-7305-9990-6
ISSN:
0812-7387
CODEN:
RAMSEZ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
GEOLOGY; MINERALOGY
Digitized:
28 July 2009
Reference number:
82
EndNote package:
EndNote file
Title page:
Title page (88kb PDF)
Complete work:
Complete work (916kb PDF)

Abstract

The Bimbimbie gold mine is situated within a syntectonic granite mass that intrudes Ordovician metasediments 11 km south-west of Batemans Bay, NSW. Three gold-pyrite quartz veins occur within the mine area, the largest the Bimbimbie vein being the main producer. On the backs of a large stope into the Bimbimbie vein numerous limonitic (goethitic) stalactites occur. Two of these were assayed for gold giving 26.1ppm and 16.2ppm respectively. The chemistry of the process leading to the incorporation of gold in these stalactites is considered in terms of the solubility of gold in the thiosulphate ion.

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