Zoisite is a mineral from the silicate group, captivating with its rich color palette and unique varieties. It can be green, pink, yellowish, brown, or colorless, and its most famous gemstone forms are enchanting:
Key deposits are found in Tanzania (source of tanzanite and anyolite), Austria (type locality – Saualpe), Norway (thulite), Switzerland, Pakistan, India, and the USA. Thanks to its beauty, diversity, and relative hardness, zoisite is a popular choice for jewelry (especially tanzanite and thulite) and a valuable specimen for mineralogical collections (including anyolite and well-formed crystals). Zoisite is often attributed with the ability to inspire creativity, add vital energy, and promote personal growth.
It is believed to help transform outdated patterns and find strength for positive change. This mineral is an excellent choice for admirers of natural beauty, collectors, and those seeking a unique stone with a vibrant individuality.
Physical properties
Chemical formula
Ca₂Al₃(SiO₄)(Si₂O₇)O(OH)
Hardness
6 - 7 (Tanzanite typically 6-6.5)
Crystal system
Orthorhombic
Transparency
Transparent to translucent to opaque
Luster
Vitreous (glassy); pearly on cleavage surfaces
Color
Colorless, white, gray, green, blue, violet (Tanzanite), pink (Thulite), brown, yellow; often multicolored (Anyolite)
Specific gravity
3.10 - 3.38
Varieties
Jewelry with this mineral
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