TOPAZ
- CAS No.
- Chemical Name:
- TOPAZ
- Synonyms
- TOPAZ;CITRINE;Tongs for crucible carrier;Topaz, naturally occuring mineral, grains, approximately 0.06-0.19in
- CBNumber:
- CB2369709
- Molecular Formula:
- Al2SiO4(F,OH)2approximate
- Molecular Weight:
- 191.23
- MDL Number:
- MFCD01961124
- MOL File:
- Mol file
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TOPAZ Chemical Properties,Uses,Production
Definition
A hydrous aluminosilicate mineral containing some fluoride ions, used for making refractories, glasses, and glazes. A clear pale yellow or brown form is used as a gemstone.
Definition
topaz: A variably coloured aluminiumsilicate mineral,Al2(SiO4)(OH,F)2, that forms orthorhombiccrystals. It occurs chieflyin acid igneous rocks, such as granitesand pegmatites. Topaz is valuedas a gemstone because of its transparency,variety of colours (the wineyellowvariety being most highly prized), and great hardness (8 on theMohs’ scale). When heated, yellow orbrownish topaz often becomes arose-pink colour. The main sources oftopaz are Brazil, Russia, and the USA.
TOPAZ Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 1)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Alfa Aesar | -- | tech@alfa.com | United States | 6814 | 81 |
| Supplier | Advantage |
|---|---|
| Alfa Aesar | 81 |
TOPAZ
CITRINE
Topaz, naturally occuring mineral, grains, approximately 0.06-0.19in
Tongs for crucible carrier
Al2SiO4FOH2approximate