Musgravite

 ( Oxide Minerals ) 

Musgravite or magnesiotaaffeite-6N’3S is a rare oxide mineral used as a gemstone. Its type locality is the Ernabella Mission, Musgrave Ranges, South Australia, for which it was named following its discovery in 1967. It is a member of the taaffeite family of minerals, Magnesiotaaffeite- 6N’3S on Mindat Gemdat and its chemical formula is Beryllium(Magnesium, Fe, Zinc)₂Aluminium₆Oxygen₁₂. Its hardness is 8 to 8.5 on the Mohs scale. Due to its rarity, the mineral can sell for roughly USD$35,000 per carat.

• List of minerals