Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Inclusions of gilalite aggregates in rock crystal from Brazil
Inclusion of apatite in ruby from Tanzania
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Bubbles and swirls in moldavite (natural glass)
Stress fissure («sun spangle») in baltic amber

Swiss Gemmological Society

Committee

Name Telephone
President Dr Walter Balmer +41 33 530 30 30
Vice President Martin Julier +41 41 360 56 58
Secretary Rébecca Michelot +41 79 668 69 89
Cashier Hans-Ulrich Demuth +41 44 211 50 91
President of the Scientific Commission Michael Hügi +41 58 462 93 16

Scientific Commission

Name Telephone
President Michael Hügi +41 58 462 93 16
Member Willy Bieri +41 78 696 19 81
Member Dr. Thomas Hainschwang +42 32 62 24 64
Member Dr. Michael S. Krzemnicki +41 61 262 06 40
Member Hans Pfister +41 22 810 05 40‬
Representative CIBJO Adrian Meister +41 44 221 27 27

Material Management, Archives

Name Telephone
Material Management, Archives Balz Blumer +41 44 487 91 00

Regional Group Leaders

Name

 Telephone
Group 1 Suisse romande, 22M

Rébecca Michelot

 +41 79 668 69 89
Group 2 Berne, 15 M

Patrick Stebler

 +41 31 951 10 73
Group 3 Basel / Solothurn / Aarau and Group 4 Central Switzerland, 23 M

Natalya Hermenau

 +41 76 521 66 52
Group 5 Zurich, 27 M

Astrid Bosshard

 +41 76 387 04 50
Group 6 East Switzerland, 13 M

Nicola Cemin

 +41 71 988 10 65
Group 7 Ticino, 7 M

Mattia Cilluffo

 +41 91 682 65 45

Honorary Members

Prof. Dr. Max Weibel, Zürich