11btrm.ns ((COQUIMBITE, ALUNOGEN)), $15 MINIMUM BID, Javier Mine, Ayacucho Department, Peru, 5.5 x 4.5 x 2.5 cm, Miniature | |
Purple hexagonal terminated crystals of Coquimbite from the find from Peru in 2010. Good coverage of large crystals on the front and a purple micro crystalline druze on the back side. These species are sulphate minerals and hense water soluble, Do not wash with water |