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