Black Gypsum - La Rioja #7 Shop GIA chairman and the man

GIA chairman and the man who invented the GIA diamond grading system

This is a rare find of tiny Rhodochrosite rhomb crystals on double layer growth Quartz from Djurcovo

with the black colouring coming from the tooth absorbing minerals like Iron and Manganese over time

New South Wales Australia

Black Gypsum - La Rioja #7 Shop GIA chairman and the manThis unusual Black Gypsum specimen is from La Rioja, Spain. The black colour is caused by inclusions of carbon and lignite. You will receive the exact Gypsum crystal pictured. Gypsum is a family of crystals that includes the well known Selenite and Satin Spar varieties, amongst others such as Desert Rose. Gypsum Healing Properties include: Stimulating self improvement Known as the Lucky Stone Helps to pull you out of a rut