Cassiterite is tin oxide,and the most important ore of the element tin. It frequently occurs in good crystals,but equally important are the massive and so-called 'botryoidal' varieties such as the material from Pinos,Mexico. Botryoidal means shaped like 'a bunch of grapes',which well describes the specimen shown | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Arem, Joel |
Taille de l’image : | 3756 px × 2550 px |
Model Release : | Non requis |
Property Release : | Non requis |
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