Four Treasures Reference Database
Record No. 2708
Rubin und Sapphir
Ruby and Sapphire
Book
Bauer, M. (1897) Rubin und Sapphir. [Ruby and Sapphire] Hamburg, Verlagsanstalt und Druckerei A., 47 pp.
Sinkankas/Born No.: 466; NIB | Language: in German | not seen
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corundum, ruby, sapphire, Burma.12, gems
Sinkankas: Excellent summary of knowledge about ruby and sapphire, properties, colors, color vs value in gems, heat treatment, nomenclature, chatoyancy, optical properties, origin & location of deposits, methods of mining, misleading terms, other misc data.