Diopside 2x4mm Thin Rondelle Faceted AA Grade - 15-16 Inch tucson2025-pebbles Black Opal is a naturally

Black Opal is a naturally occurring variety of precious opal mined in Australia

West African Jade is a complex Calcium Aluminum Silicate and is a Nephrite Jade

Truly appreciate how beautiful and unique these gemstones are before they go through the lapidary process

Abalone Shell is strong and is made of stacked calcium carbonate tiles

Mohs Hardness: 7

Diopside 2x4mm Thin Rondelle Faceted AA Grade - 15-16 Inch tucson2025-pebbles Black Opal is a naturallyDiopside is a calcium and magnesium silicate mineral. It is transparent or translucent, and can display a nearly emerald green color due to the presence of Chromium within the stone. It is believed to increase ones metaphysical connection with the earth.