Andalusite Vs Bytownite
Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Canada, Southern and central Africa, Australia
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Colorless, White, gray
Specific Gravity
3.05-3.21
2.72-2.75
Fracture
Uneven, Subconchoidal, Splintery
Uneven
Cleavage
Good on {110}, poor on {100}
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Greasy
Vitreous, Pearly
Pleochroism
strongly trichroic
colorless.
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.627-1.650
1.561-1.583
Crystal System
Orthorhombic
Triclinic
Birefringence
0.009-0.010
0.010-0.011
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Poor
Psychology
Perception
Clarity
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Clarity
Andalusite Vs Bytownite Fracture
Fracture is an important parameter when you compare Andalusite and Bytownite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Bytownite 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. Bytownite fracture is Uneven.
Andalusite Vs Bytownite Luster
A primary knowledge about Andalusite vs Bytownite 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. Bytownite, on other hand, exhibits Vitreous and Pearly luster.