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Help to identify the amber crystal under the white calcite crystals.

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Can anyone help with identifying the amber coloured crystal matrix behind the white calcite crystals, this specimen comes from the Cadjebut mine in Western Australia, this is a large 23kg crystal and some of the calcite crystals are 34mm x 36mm. alt text

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asked Jan 15, 2015 by John Cross (280 points)

2 Answers

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Hard to tell from the pictures without visual identification. However, considering the paragenesis of the mine, possibilities may include sphalerite, siderite, and barite.

answered Jan 19, 2015 by hershel (52,800 points)
0 votes
Looks like sphalerite. I find calcite specimens with sphalerite in them that look very similiar to yours but here in Arkansas.
answered Oct 15, 2015 by anonymous