Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Agate from Reichweiler, Germany
Midge included in amber from the Baltic coast, polarised light
Two-phase inclusions in sapphire, Sri Lanka
Agate from Anzi, Maroc
Structure in a healing fissure in topaz from Brazil
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Kontakt

Schweizerische Gemmologische Gesellschaft
Sekretariat: Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
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