Botryoidal Prehnite Mineral Specimen, Kayes Region, Mali 12.3 g.
USD 6.50 USD
Specifications
| Country Of Origin | Mali |
Aluminum inosilicate. Prehnite solidifies as stalactitic or botryoidal aggregation, with just the contours of refined grains exhibiting visible facets, nearly invariably twisted or mixed. PREHNITE forms in the veins and cavities of volcanic rock, often basalts, but also occurring in granites.

