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04/04/2010 Sunday

Peridotite xenolith

olivine090129

I better call this olivine xenolith. Peridotite is formed in the Earth's mantle and derived from there in magmas. When olivine is gem-quality, it is called peridot (unfortunately, this is NOT a gemstone). I collected this at a volcano in Syria. Sketched on the 29th of January, 2009. #116 of the book.
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