Photo: Denisbin, Jeff Morgan Panorama Gallery (Flinders)
Mineral = a solid inorganic substance of natural occurrence
Elsewhere on the Web
British and Exotic Mineralogy
Wikipedia
Vermiculite
Planeta
Photo: Denisbin, Jeff Morgan Panorama Gallery (Flinders)
Mineral = a solid inorganic substance of natural occurrence
Elsewhere on the Web
British and Exotic Mineralogy
Wikipedia
Vermiculite
Planeta