Tanzanite Vs Andalusite
Origin
Tanzania
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Blue
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Streak
White, Colorless
White
For which Rashi?
Sagittarius, Pisces, Virgo
-
Element of Planets
Air, Water, Earth
-
Specific Gravity
3.35
3.05-3.21
Fracture
Uneven, Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
Perfect {010}, imperfect {100}
Good on {110}, poor on {100}
Chemical Composition
Ca2Al3(SiO4)3(OH)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Present
strongly trichroic
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.685-1.707
1.627-1.650
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.006-0.018
0.009-0.010
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Intuition
Perception
Healing
Emotional healing
Physical healing
Qualities Associated
Communication
Self-Realization
Tanzanite Vs Andalusite Fracture
Fracture is an important parameter when you compare Tanzanite and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Tanzanite Vs Andalusite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Tanzanite is Uneven and Conchoidal. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Tanzanite Vs Andalusite Luster
A primary knowledge about Tanzanite vs Andalusite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Tanzanite exhibits Vitreous luster. Andalusite, on other hand, exhibits Vitreous and Greasy luster.