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**Chemical formula:** R₃R₂[SiO₄]₃ **Hardness:** 6.5‒7.5 **Density:** 3.4‒4.6 g/cm³ **Crystal system:** Isometric (Cubic) **Luster:** Vitreous to resinous **Description:** Garnets are isometric minerals belonging to the nesosilicate group. They most commonly occur as rhombic dodecahedral or hexoctahedral crystal forms, while grained and compact aggregates are less common. Garnet species exhibit a wide range of colors, including red pyrope (Mg, Al), known as "Czech garnet", red-purple almandine (Fe, Al), orange-red spessartine (Mn, Al), yellow to brown-red grossular (Ca, Fe), brown-red to brown andradite (Ca, Fe), and green uvarovite (Ca, Cr). Garnets are frequently used as gemstones. ## Keywords mineral garnet texture color ornamental stone semi-precious gemstone
