Almandine Garnet continues as a popular gemstone today. It serves as a birthstone for the month of January and is a traditional gem given on a second anniversary. Most people will think of a red gemstone when they hear the name “garnet” because they are not aware that garnet occurs in a variety of colors. However, gem-quality garnets occur in every color – with red being the most common and blue garnets being especially rare.
Chemical Classification | Silicate |
Color | Typically red, but can be orange, green, yellow, purple, black, or brown. Blue garnets are extremely rare. |
Streak | Colorless |
Luster | Vitreous |
Diaphaneity | Transparent to translucent |
Cleavage | None |
Mohs Hardness | 6.5 to 7.5 |
Specific Gravity | 3.5 to 4.3 |
Diagnostic Properties | Hardness, specific gravity, isometric crystal habit, lack of cleavage |
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