What is Garnet?
Garnet is a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. It’s primarily found in Africa, Sri Lanka, and India. Garnet is often used as a gemstone and is a popular choice for jewelry due to its deep red color and spiritual significance.
Garnet is a deep red gemstone that belongs to a group of silicate minerals. Its rich color and lustrous appearance make it a popular choice for jewelry and decorative items. The stone is often used in rings, necklaces, and pendants.
|Chemical Classification||Inorganic - Silicate (Garnet group)|
|Color||Garnets come in a variety of colors, including red, brown, green, yellow, orange, pink, and even some blues.|
|Streak||White to Brown|
|Luster||Vitreous to resinous.|
|Transparency||Transparent to translucent.|
|Occurrence||India, Sri Lanka, and the United States.|
|Formation||Garnets typically form in metamorphic rocks under high temperatures and pressures.|
|Diaphaneity||Transparent to translucent|
|Cleavage||Perfect in two directions|
|Mohs Hardness||6.5 to 7.5.|
|Specific Gravity||3.5 to 4.3, depending on the type of garnet.|
|Diagnostic Properties||Dodecahedral crystal habit, various colors.|
|Chemical Composition||X3Y2(SiO4)3 (Where X and Y are various metal ions)|
|Pleochroism||Some garnets, like almandine, exhibit pleochroism, showing different colors or depths of color when viewed from different angles.|
|Crystal System||Isometric/Cubic (varies by type)|
|Optical Properties||Isotropic (most varieties)|
|Refractive Index||Varies by type, e.g., Almandine: 1.760 - 1.790|
|Birefringence||Varies by type, e.g., Almandine: None (isotropic)|
|2V angle||Measured: 93°|
|Dispersion||0.024 – relatively high, giving it good brilliance.|