Garnet (Almandine)
Fe3Al2(SiO4)3
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Almandine is the most common garnet species and a key metamorphic indicator mineral. The garnet group includes pyrope, grossular, andradite, spessartine, and uvarovite. Garnets are widely used as gemstones and abrasives.
| Crystal System | Cubic (Isometric) |
| Mineral Class | 09 Silicates |
| Mohs Hardness | 6.5-7.5 |
| Specific Gravity | 3.93-4.32 |
| Color | Deep red, reddish-brown, black |
| Luster | Vitreous |
| Streak | Colorless |
| Cleavage | None |
| Fracture | Conchoidal to uneven |
| Transparency | Transparent |
| Crystal Habit | Dodecahedral, trapezohedral |
Mohs Hardness
Mohs Hardness: 6.5 – 7.5
1 Soft10 Hard
Crystal System
Cubic (Isometric)Frequently Asked Questions
What is the hardness of Garnet (Almandine)?
Garnet (Almandine) has a Mohs hardness of 6.5-7.5.
What crystal system does Garnet (Almandine) belong to?
Garnet (Almandine) crystallizes in the Cubic (Isometric) crystal system.
What color is Garnet (Almandine)?
Garnet (Almandine) is typically Deep red, reddish-brown, black.
What type of luster does Garnet (Almandine) have?
Garnet (Almandine) exhibits a Vitreous luster.
What is the chemical formula of Garnet (Almandine)?
The chemical formula of Garnet (Almandine) is Fe3Al2(SiO4)3.