Raw polished carved and semi finished. Sturmanite has a bright yellow to amber colour and falls in the ettringite group. Ettringite ettringite is not generally facetable. Sonara sunrise is a mix of cuprite and chrysocolla and is a trade name used to describe an uncommon stone from one place in mexico. View all products sort by.
See pictures of the mines other pictures. Our individual sellers are located all over the world bringing you the most unique and beautiful gemstones. It is cut only for collection because it is very fragile. Cassiterite is a durable gemstone with tremendous dispersive fire especially visible in properly cut pale colored stones. It crystallises in the tetragonal system and it has a moh s hardness of 2 5.
Our gemstones are crafted into beautiful works of art by accentuating their natural beauty and allowing it to shine through. Each stone shares their story through millions of years of creation. 125 92 179 88. Sturmanite is a rare sulfate mineral with the chemical formula ca 6 fe 3 2 so 4 2 5 b oh 4 oh 12 25 h 2 o. Sturmanite is named in honor of bozidar darko sturman 1937 canadian mineralogist royal ontario museum toronto ontario canada.
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Ca 6 fe 3 al mn 2 2 so 4 2 b oh 4 oh 12 25 h 2 o hydrated calcium iron aluminum manganese sulfate tetrahydroxoborate hydroxide discovered in 1981. See the pictures. It is said to be a stone of empowerment and freedom and is a mixture of red cuprite and blue green chrysocolla which are both copper based stones. It honors the name of the canadian mineralogist b. Gem rock auctions sells verified sturmanite online in all shapes and sizes.Sturmanite is an extremely rare gem and a member of the ettringite group of minerals that includes charlesite ettringite sturmanite and thaumasite. Display 30 88 80 grams sturmanite on matrix n chwaning ii mine northern cape prowince south africa. Rare mineral it is found in the kalahari in south africa and in russia in the caucasus. Both are members of the ettringite group of minerals and have similar crystal habit density luster and often have the same bright yellow color. We offer the best in gemstones and crystals in many forms.
We showcase their radiance as orbs towers cubes hearts palm stones jewelry tumbled and in. Valid ima approved 1983. Sturmanite group s. South african material has yielded minute stones some of which may have been labeled sturmanite. It is difficult to distinguish ettringite from sturmanite.
It is difficult to distinguish ettringite from sturmanite. We showcase their radiance as orbs towers cubes hearts palm stones jewelry tumbled and in. Sturmanite is an extremely rare gem and a member of the ettringite group of minerals that includes charlesite ettringite sturmanite and thaumasite. Ca 6 fe 3 al mn 2 2 so 4 2 b oh 4 oh 12 25 h 2 o hydrated calcium iron aluminum manganese sulfate tetrahydroxoborate hydroxide discovered in 1981. Our gemstones are crafted into beautiful works of art by accentuating their natural beauty and allowing it to shine through.
RELATED ARTICLE :
South african material has yielded minute stones some of which may have been labeled sturmanite. See pictures of the mines other pictures. Raw polished carved and semi finished.
