Foitite

Unknown Owner

Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.

A huge specimen of black tourmaline overgrowing a large matrix of feldspar, coated on one side by a chalky carbonate (could be removed, if you wish, with acid). The piece is actually quite pretty as is, though - the contrast makes it more visually appealing, to me, than an all black surface. Crystals run to 4.5 cm. Notably, Charlie says this style of so-called schorl from Erongo has been characterized recently as the related species of tourmaline, foitite. Ex. Charlie Key Collection.