Spinel crystal in dolomite marble, Burma
Midge included in amber from the Baltic coast, polarised light
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Structure in a healing fissure in topaz from Brazil
Twin-crystal of chrysoberyl
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of gilalite aggregates in rock crystal from Brazil


Societé Suisse de Gemmologie
Sekretariat: Iva Pavic

c/o Iva Pavic, Heerenschürlistrasse 4, 8051 Zürich

T. +41 78 720 98 54
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