Eolian sand, Zuun mod Elstei, Mongolia
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| Glass bead is 200µ in diameter |
Location:
Zuun mod Elstei, 50 km east of Ulaanbaatar, Mongolia; E 107°28'55.1"; N 47°47'27.5"
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Mix of translucent - transparent quartz with pink feldspar, white marble and grey-green low-grade metamorphic rocks (schists); possibly also higher-grade metamorphic rocks involved. Few heavy minerals, including garnets.
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Glass bead is 200µ in diameter .
Texture:
Characteristic eolian texture: Medium grained (mL-MU; mean ca. 350 µ), well sorted, depending on mineralogy poorly to well rounded. Characteristic polished, matted ("frosted") grain surfaces typical of eolian transport.
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