Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Sri Lanka, Burma, USA, Russia
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Yellow, Brown, pink, Colorless
Specific Gravity
3.05-3.21
3.46-3.50
Fracture
Uneven, Subconchoidal, Splintery
Conchoidal
Cleavage
Good on {110}, poor on {100}
Perfect
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
-
Pleochroism
strongly trichroic
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent
-
Refractive Index
1.627-1.650
1.665-1.712
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.009-0.010
0.036-0.042
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Perception
Intuition
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Emotional Healing
Andalusite Vs Sinhalite Fracture
Fracture is an important parameter when you compare Andalusite and Sinhalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Sinhalite 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 and Splintery. Sinhalite fracture is Conchoidal.
Andalusite Vs Sinhalite Luster
A primary knowledge about Andalusite vs Sinhalite 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.