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
Southern and central Africa
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
Black, Reddish, gray, Red
Streak
White
Black, Brown, Reddish, Red
For which Rashi?
All
Aries, Aquarius, Aries, Aquarius, Aries, Aquarius
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective, Receptive
Projective
Deities
Not Available
Mars
Not to wear with
Not Available
Not Available
Powers
Not Available
Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.05-3.21
5.00-5.30
Fracture
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Cleavage
Good on {110}, poor on {100}
None, may show partings on {0001} and {10 1 1}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Fe 2O 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous, Greasy
Not Available
Pleochroism
strongly trichroic
O = brownish red; E = yellowish red
Transparency
Transparent, Translucent
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Refractive Index
1.627-1.650
2.690-3.220
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.009-0.010
0.280
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli
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 Hematite Fracture
Fracture is an important parameter when you compare Andalusite and Hematite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Hematite 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 Gemstones (2009), Splintery, Subconchoidal, Subconchoidal, Uneven, Uneven and UnevenArthur Thomas. Hematite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.