Feldspar (Orthoclase)
KAlSi3O8
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Orthoclase is a potassium feldspar and one of the most common minerals in the Earth's crust. It is an essential component of granite and many other igneous rocks. Moonstone is a gem variety of orthoclase.
| Кристаллическая система | Monoclinic |
| Класс минерала | 09 Silicates |
| Твёрдость по Моосу | 6.0-6.5 |
| Удельный вес | 2.55-2.63 |
| Цвет | White, pink, cream, gray |
| Блеск | Vitreous |
| Черта | White |
| Спайность | Perfect {001}, good {010} |
| Излом | Uneven to conchoidal |
| Прозрачность | Translucent |
| Кристаллический облик | Prismatic, tabular |
Твёрдость по Моосу
Mohs Hardness: 6,0 – 6,5
1 Soft10 Hard
Кристаллическая система
MonoclinicFrequently Asked Questions
What is the hardness of Feldspar (Orthoclase)?
Feldspar (Orthoclase) has a Mohs hardness of 6.0-6.5.
What crystal system does Feldspar (Orthoclase) belong to?
Feldspar (Orthoclase) crystallizes in the Monoclinic crystal system.
What color is Feldspar (Orthoclase)?
Feldspar (Orthoclase) is typically White, pink, cream, gray.
What type of luster does Feldspar (Orthoclase) have?
Feldspar (Orthoclase) exhibits a Vitreous luster.
What is the chemical formula of Feldspar (Orthoclase)?
The chemical formula of Feldspar (Orthoclase) is KAlSi3O8.