Two-Phase inclusions and rutile needles in rock crystal from Brazil
Spinel crystal in dolomite marble, Burma
Midge included in amber from the Baltic coast, polarised light
Stress fissure («sun spangle») in baltic amber
Colour zoning in ruby from Mong-Shu, Burma
Dumortierite in rock crystal, Brazil, polarised light
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania

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Schweizerische Gemmologische Gesellschaft
Sekretariat: Rébecca Michelot
c/o BDO AG, Hodlerstrasse 5, 3001 Bern

T. +41 79 668 6989
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