21674 - Museum Grade Purple Fluorite Crystals on Matrix Tounfit Fluorite Mine South Morocco Shark Teeth Collection Photomicrograph showing brown hornblende crystals

Photomicrograph showing brown hornblende crystals in a mass of highly sericitized plagioclase with very fine grain size

Enstatite chondrites (also known as E-type chondrites) are a rare form of meteorite thought to comprise only about 2% of the chondrites that fall on Earth

Nice association of an rooted Spinosaur tooth + Onchopristis numidus partial rostral tooth in its natural matrix

it is a spectacular specimen

Unbroken specimen

21674 - Museum Grade Purple Fluorite Crystals on Matrix Tounfit Fluorite Mine South Morocco Shark Teeth Collection Photomicrograph showing brown hornblende crystalsFluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. Fluorite is a colorful mineral, both in visible and ultraviolet light, and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels.