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On a Specimen of Proustite containing Antimony
Published online by Cambridge University Press: 14 March 2018
Extract
The specimen which is the subject of the present note is a magnificent piece of Proustite from Chañarcilio, Chili, which has been recently acquired for the British Museum. It is a mass of lustrous crystals, measuring about 3 inches by 2½ inches, and nearly 3 inches in height.
The specimen has a peculiar cockscomb appearance, due partly to the habit of the crystals and partly to the way in which they are grouped ; the lower part consists of Proustite, interpenetrated by a little minutely crystalline white Calcite, which on one side of the specimen extends partly over the crystals in the form of darker coloured acute rhombohedra.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 7 , Issue 35 , December 1887 , pp. 196 - 200
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1887
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