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<p>[QUOTE=&quot;desertgem, post: 2709891, member: 15199&quot;]The majority look like microcrystalline quartz or commonly know as agate. I don&#039;t do much with opaque minerals, the transparent crystals are much prettier, especially when faceted ( cut). One violet and white one could appear as Hackmanite if you picked it up in Afghanistan or Pakistan area, but I assume you got it as a group. If you take more photos for other mineralogists here, place a measure in it. General discussions would be a better place to post it, as ancient coins will miss a lot. jim[/QUOTE]</p><p><br /></p>

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