Glauberite 0.45 ct Super Cutting Cut with No Water Cut with Alcohol 6.20 x 4.60 x 2.80 mm max7467
Glauberite 0.45 ct Super Cutting cut with no water cut with Alcohol 6.20 x 4.60 x 2.80 mm max7467
Glauberite
is a sodium calcium sulfate with formula Na2Ca(SO4)2 and hardness of 2.5 .
Named in 1808 by Brongniart for its chemical similarity to Glauber's salt, Na2SO4ยท10H2O, discovered by German alchemist Johann Rudolf Glauber (1604-1668). Natural Glauber's salt is the distinct species mirabilite. ( from Wikipedia)
Is a very sensitive mineral to water with properties similar to the normal salt,therefore must be stored in a dry place, better not exposed to air,or it may deteriorate .
Therefore the cutting and polish is difficult and very few stones are available in the market.
It comes from California.
$48.00
1 in stock
1 in stock