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Unknown from Miquel Vacas mine

Posted by Ron Layton

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Ron Layton

Unknown from Miquel Vacas mine
April 25, 2012 09:28PM

Registered: 4 years ago
Posts: 103

First, I do not have the capability of taking good pictures with my microscope. I was trimming a specimen of libethenite from the Miguel Vacas mine in Portugal. I noticed some hairlike crystals in a pocket with psedomalachite balls and some kind of iron oxide under the scope. The color of the acicular crystals is the same green as the libethenite. Some of the crystals are bent and would seem flexible to a degree. They remind me of acicular olivenite but they are the wrong color. AT most, the bundles of crystals are 1mm long. Any help?

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Uwe Kolitsch

Re: Unknown from Miquel Vacas mine
April 26, 2012 09:08AM

Registered: 7 years ago
Posts: 10,998

A mixite-group mineral? Or a pseudomorph?

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Rui Nunes

Re: Unknown from Miquel Vacas mine
April 26, 2012 10:58AM

Registered: 7 years ago
Posts: 582

Brochantite?

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