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You are browsing the archive for 2011 November 08.

8 November 2011

Mystery mineral molds

Here’s a piece of vein quartz with a series of interesting “cubist disc” shaped holes in it. I interpret these cavities as external molds of some mineral which has now been physically removed or chemically weathered away. So only its exterior shape remains, and I wonder if that’s enough to identify the mineral that used to be here. Both images below can be enlarged by clicking on them: And the …

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