Dendrites in agate
Partially etched diamond crystal
Twin-crystal of chrysoberyl
Midge included in amber from the Baltic coast, polarised light
Agate from Anzi, Maroc
Two-phase inclusion in amethyst, Brazil
Stress fissure («sun spangle») in baltic amber
Structure in a healing fissure in topaz from Brazil

Contatti

Società Gemmologica Svizzera
Segretariato : Willy Bieri

c/o Willy Bieri, Feldgass 34, 6170 Schüpfheim

T. +41 78 696 19 81
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