Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load.
These mineral photos are copyrighted by their owners and may not be used without permission.
Comments: Tan spear-shaped micro crystals of cuspidine in diopside.
Location: San Vito Quarry, Vesuvius, Napoli, Campania, Italy.
Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species
Cuspidine: Ca4Si2O7(F,OH)2 Jasmundite: Ca11(SiO4)4O2S
Comments: Tan-brownish crystals of jasmundite and dark green cuspidine with gehlenite and spinel in matrix.
Location: Bellerberg, Eifel, Germany.
Scale: Not Given.
© Diederik Visser