Biotite
K(Mg,Fe)3(AlSi3O10)(OH)2
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Biotite is a common phyllosilicate mineral found in igneous and metamorphic rocks. It is distinguished from muscovite by its darker color due to iron and magnesium content. Biotite is an important indicator of metamorphic grade.
| क्रिस्टल प्रणाली | Monoclinic |
| खनिज वर्ग | 09 Silicates |
| मोह कठोरता | 2.5-3.0 |
| विशिष्ट गुरुत्व | 2.70-3.40 |
| रंग | Black, dark brown, dark green |
| चमक | Vitreous |
| रेखा रंग | White to gray |
| विदलन | Perfect basal {001} |
| विभंग | Uneven |
| पारदर्शिता | Translucent |
| क्रिस्टल आदत | Tabular, pseudo-hexagonal |
मोह कठोरता
Mohs Hardness: 2.5 – 3.0
1 Soft10 Hard
क्रिस्टल प्रणाली
MonoclinicFrequently Asked Questions
What is the hardness of Biotite?
Biotite has a Mohs hardness of 2.5-3.0.
What crystal system does Biotite belong to?
Biotite crystallizes in the Monoclinic crystal system.
What color is Biotite?
Biotite is typically Black, dark brown, dark green.
What type of luster does Biotite have?
Biotite exhibits a Vitreous luster.
What is the chemical formula of Biotite?
The chemical formula of Biotite is K(Mg,Fe)3(AlSi3O10)(OH)2.