Origin
Spain, Brazil, USA, Sri Lanka, Burma, Color: strongly pleochroic, reddish brown, pink / yellowish green, Hardness: 7 7.5, Refractive index: 1.63 1.65, Density: 3.13 3.21, Chemical composition: Al2SiO5, Crystal structure: orthorhombic, Lustre: vitreous, greasy, Origins: Spain, Brazil, USA, Sri Lanka, Burma. Discovered in Andalusia (Spain), the andalusite stone is relatively rare, with big crystals over 10 ct. especially rare. Due to its remarkable pleochroism effect, the stone is highly valued by collectors., brown
Tanzania, Yellow, green, Yellow, green
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
Blue
Streak
White
White, Colorless
For which Rashi?
All
Sagittarius, Pisces, Virgo, Sagittarius, Pisces, Virgo, Sagittarius, Pisces, Virgo
Planet
Venus
Not Available
Element of Planets
Not Available
Air, Water, Earth
Energy
Projective, Receptive
Receptive, Projective
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Goddess
Not to wear with
Not Available
Not Available
Powers
Not Available
Love, Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Hard
Specific Gravity
3.05-3.21
3.35
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)
Cleavage
Good on {110}, poor on {100}
Perfect {010}, imperfect {100}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca2Al3(SiO4)3(OH)
Luster
Vitreous, Greasy
Vitreous
Pleochroism
strongly trichroic
Present
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.627-1.650
1.685-1.707
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.009-0.010
0.006-0.018
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Andalusite Vs Tanzanite Fracture
Fracture is an important parameter when you compare Andalusite and Tanzanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Tanzanite 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 Andalusite is Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas and Gemstones (2009). Tanzanite fracture is Uneven, Conchoidal, UnevenWalter Schumann and Gemstones of the world (2001).
Andalusite Vs Tanzanite Luster
A primary knowledge about Andalusite vs Tanzanite 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. Andalusite exhibits Vitreous and Greasy luster. Tanzanite, on other hand, exhibits Vitreous luster.
