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The Zeolite Collection of Volker Betz
New photographed specimens
(August  2011)
What you see is mostly the picture label I put on the box, typical in the format of about 4x6 cm.
Thomsonit_dobernqa
Thomsonit
Klinoptilolith
Clinoptilolite-Na, Richardson Ranch, Madras, Oregon, USA. Field of view 2.2 mm
Stilbit
Analcim
Mazzit
Mazzit2
Natrolith
azzit
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