Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Tanzania, Madagascar, Kenya, Sri Lanka, Burma, Australia
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Green, Brown, Colorless, Greenish, Yellow
Specific Gravity
3.05-3.21
3.25-3.45
Fracture
Uneven, Subconchoidal, Splintery
Conchoidal, Uneven
Cleavage
Good on {110}, poor on {100}
Good on {110}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references
Luster
Vitreous, Greasy
Vitreous
Pleochroism
strongly trichroic
X = colorless to green; Y = colorless
Transparency
Transparent, Translucent
-
Refractive Index
1.627-1.650
1.660-1.685
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.009-0.010
0.012-0.017
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Psychology
Perception
Harmony
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Self-worth
Andalusite Vs Kornerupine Fracture
Fracture is an important parameter when you compare Andalusite and Kornerupine Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Kornerupine 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. Kornerupine fracture is Conchoidal and Uneven.
Andalusite Vs Kornerupine Luster
A primary knowledge about Andalusite vs Kornerupine 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. Kornerupine, on other hand, exhibits Vitreous luster.