Andalusite Vs Forsterite
Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Southern and central Africa
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Colorless, Green, Yellow, White
Specific Gravity
3.05-3.21
3.23-3.26
Fracture
Uneven, Subconchoidal, Splintery
Conchoidal
Cleavage
Good on {110}, poor on {100}
Perfect on {010} imperfect on {100}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Greasy
Vitreous
Pleochroism
strongly trichroic
colorless.
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.627-1.650
1.635-1.671
Crystal System
Orthorhombic
Orthorhombic
Birefringence
0.009-0.010
0.033-0.042
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Reproductive
-
Supports healthy digestion
Psychology
Perception
Peace
Healing
Physical healing
Physical healing
Qualities Associated
Self-Realization
Peace
Andalusite Vs Forsterite Fracture
Fracture is an important parameter when you compare Andalusite and Forsterite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Forsterite 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. Forsterite fracture is Conchoidal.
Andalusite Vs Forsterite Luster
A primary knowledge about Andalusite vs Forsterite 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. Forsterite, on other hand, exhibits Vitreous luster.