Twin-crystal of chrysoberyl
Colour zoning in ruby from Mong-Shu, Burma
Bubbles and swirls in moldavite (natural glass)
Inclusions of hematite in feldspar (sunstone), India
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusions of hematite in aquamarine, Tanzania
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Agate from Reichweiler, Germany


Schweizerische Gemmologische Gesellschaft
Sekretariat: Iva Pavic

c/o Iva Pavic, Heerenschürlistrasse 4, 8051 Zürich

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