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Approx weight: 40g
similar to quartz geodes
giving it the appearance of moss or lichen
and this piece—like pyrite—does not seem too
but only the inset areas
Epidote with well-formed prehnite sphere Sandstone Approx weight: 40gLocale: Imilchil, Midelt Province, Dra Tafilalet Region, Morocco Approx dimensions: 2. 5 x 1. 5 x 1. 25" Approx weight: 115g After some sleuthing on Mindat I was intrigued to discover the spherical formation on this specimen is prehnite. I actually didn't find one matching this specimen anywhere; all examples were translucent and not opaque. I suspect it could be a feldspar pseudomorph. Prehnite typically does not fluorescebut this one does. Prehnite
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