PHYSICAL PROPERTIES
- GROUP Silicates - sorosilicates
- COMPOSITION Ca2Al3(SiO4)3(OH )
- COLOR Greenish yellow, white
- CRYSTALLINE SYSTEM Rhombic
- CRYSTALLINE HABIT Prismatic
- HARDNESS 6 - 7
- FRACTURE Conchoidal to uneven, brittle
- EXFOLIATION Perfect
- GLOSS Vitreous
- STRIP White
- TRANSPARENCY From transparent to translucent
- SPECIFIC GRAVITY 3.2 - 3.4
- REFRACTIVE INDEX 1.69 - 1.70
MINERALOGICAL CHARACTERISTICS
The tanzanite is a variety of zoisite with a dark purplish blue color. Its name comes from the place where it was discovered in 1976, in the Mereari mountains, in northern Tanzania.
The tanzanite is characterized by its pleochroism, which allows the mineral to be seen in different colors depending on the position from which it is viewed and depending on the lighting. You can see colors from dark blue, to light blue, gray and purple.
Deposits: Tanzania.
THERAPEUTIC PROPERTIES
The tanzanite represents the indigo color par excellence. It is associated with the 6th chakra and the so-called Third Eye. It is said that the Tanzanite is a stone that favors the elevation of consciousness and that it is very useful for meditating and strengthening the perceptive capacity and intuition. It is often used to balance the cerebral hemispheres and to stimulate communication and understanding.
