2624 RUSSIAN ALEXANDRITES

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Russian alexandrites
by Karl Scmetzer - 2010 - 140 pages
Product SKU: 2624
Sales price without tax: 40,00 €
Description

In this book the author present an historical overview of emerald mining in the Urals, the discovery of Russian alexandrites in the Uralian emerald mines, the naming and historical use of alexandrites and their appearance and display in mineralogical museums and the gem trade. Morphology and twinning of rough alexandrite is described for single crystals, single contact twins and cyclic twins (trillings). Mineralogical and gemmological properties are thoroughly explained and numerous photo-micrographs of inclusions and growth patterns in faceted samples are presented.

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