Wulfenite with Cerussite coating / Uygur China / Mineral Friends
Prehnite is a phyllosilicate of calcium and aluminium with the formula: Limited substitutes for aluminium in the structure. It is an elongated Epidote crystal with a little Prehnite ball at the edge of the termination. From Mali.
evaporites: “ it-sfullofstars: “ Watermelon Tourmaline Colors caused by traces of: chromium (red), lithium (green, pink), manganese (pink), or vanadium (green) ” come to me bb. i’ll lapidary you right.
Well formed crystal of transparent, rare blue halite from new find. From: Intrepid Potash East Mine, Carlsbad, New Mexico, USA.
Cuprosklodowskite: Rare green acicular crystals in cig. A uranium mineral. DR of Congo