Brookite - Properties, Photos and Occurence
Brookite is a rare and highly aesthetic mineral of the alpine clefts. It is a titanium dioxide polymorph with only limited industrial use, but it is a very popular collector’s item.
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Native Platinum - Properties, Photos and Occurence
Platinum is a commercially valuable metallic native element, prized for its physical resistance to chemical and temperature assault, its ductility and malleability, and its utility in enabling catalytic reactions. It is also a precious metal and in the natural form also a rare collecting asset.
Introduction to Amphibole Group Minerals
The amphibole supergroup is a group of more then hundred rock-forming silicates. This article provides general introduction to structure, physical properties and chemical composition of amphiboles.
Alpine Mineral Museum in Seedorf, Switzerland
Detailed photo report from the 2019 visit of the famous Uri Mineral Museum in Seedorf, Switzerland. The mineral exhibition includes wide variety of the high quality Alpine minerals.
Opal Collecting in Rožná, Czech Republic
Small opal occurence is located in the serpentinite rocks near the Rožná village, Czech Republic. It yields uncommon opal material with reticulated structures, some of these opals also contain chromite.
