Topaz
Al2SiO4(F,OH)2
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Topaz is the reference mineral for hardness 8 on the Mohs scale. It forms in granite and pegmatite veins and is prized as a gemstone. Imperial topaz (orange-pink) from Ouro Preto, Brazil, is the most valuable variety.
| Kristal Sistemi | Orthorhombic |
| Mineral Sınıfı | 09 Silicates |
| Mohs Sertliği | 8.0 |
| Özgül Ağırlık | 3.49-3.57 |
| Renk | Colorless, yellow, blue, pink, orange |
| Parlaklık | Vitreous |
| Çizgi Rengi | Colorless |
| Dilimlenme | Perfect {001} |
| Kırılma | Conchoidal to uneven |
| Şeffaflık | Transparent |
| Kristal Alışkanlığı | Prismatic |
Mohs Sertliği
Mohs Hardness: 8,0 – 8,0
1 Soft10 Hard
Kristal Sistemi
OrthorhombicExplore on Science FYI
Frequently Asked Questions
What is the hardness of Topaz?
Topaz has a Mohs hardness of 8.0.
What crystal system does Topaz belong to?
Topaz crystallizes in the Orthorhombic crystal system.
What color is Topaz?
Topaz is typically Colorless, yellow, blue, pink, orange.
What type of luster does Topaz have?
Topaz exhibits a Vitreous luster.
What is the chemical formula of Topaz?
The chemical formula of Topaz is Al2SiO4(F,OH)2.