"Riebeckite" is "Amphibole" including "sodium (Na)"
Apophyllite will help enhance your intuition
Phenomenal Natural Rough Aquamarine Specimen From Pakistan(Stand Included)- Home décor
Water Etched Quartz From An Old Collection In Val Di Funes
Rare Mohawkite From Mohawk Mine, Keweenaw Peninsula of Michigan- Collectors Piece, Home Décor Red "Riebeckite" is "Amphibole" including "sodiumRare Mohawkite From Mohawk Mine, Keweenaw Peninsula of Michigan Collectors Piece, Home Dcor Weight 320g Size 7cm by 4cm Thickness 3. 5cm Mohawkite is rare and can only be found in the Keweenaw Peninsula of Michigan, known as the Mohawk Mine, Its consisting of mixtures of arsenic, silver, nickel, skutterudite and copper, with the formula Cu 3 As up to Cu 6 As, and the most desirable material was usually found in white quartz matrix. It has a hardness