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.27" - In an acrylic display for the protection of the crystal
Tanzanite is a rare, violet-blue variety of zoisite, found exclusively in the Merelani Hills of Tanzania, known for its unique trichroism (showing blue, violet, and burgundy) and pleochroism (different colors from different angles). Usually brown in its rough state, it's heat-treated to reveal its desirable blue-violet hues, making it a popular December birthstone, though it's softer (6.5 on Mohs scale) and requires careful handling to avoid chipping due to perfect cleavage. Its extreme rarity and single source make it a valuable investment and collector's gem.
