What is Thulite?
Thulite is a pink variety of the mineral zoisite and is often found in Norway, Australia, and the United States. It’s primarily used as a gemstone and is popular for its rosy pink color.
Thulite is a unique gemstone that comes in shades of rosy pink. Its vibrant hue and unique appearance make it a popular choice for jewelry and decorative items, especially beads and pendants.
|Chemical Classification||Inorganic - Silicate (Zoisite)|
|Color||Thulite is typically pink to reddish, often intergrown with white calcite or other minerals.|
|Luster||Vitreous to pearly.|
|Occurrence||Norway (where it was first discovered), the United States, and Australia.|
|Formation||Thulite forms in metamorphic rocks and is often found in massive form rather than crystals.|
|Cleavage||Perfect in two directions|
|Mohs Hardness||6 to 7.|
|Specific Gravity||3.10 to 3.38.|
|Diagnostic Properties||Pink, a variety of zoisite.|
|Crystal System||Triclinic (variety of Zoisite)|
|Optical Properties||Biaxial (+)|
|Refractive Index||Varies due to mixture of minerals|
|Birefringence||0.006 - 0.013|
|2V angle||Measured: 78° to 82°|
|Dispersion||Not notably high.|