Zoisite Vs Bytownite
Origin
Pakistan, Tanzania
Canada, Southern and central Africa, Australia
Color
Brown, gray, Green, Blue, rose, Red
Colorless, White, gray
Streak
White, Colorless
White
Specific Gravity
3.20-3.50
2.72-2.75
Fracture
Uneven, Conchoidal, Even
Uneven
Cleavage
Perfect {010} imperfect {100}
Perfect on [001], good on [010], imperfect on [110]
Chemical Composition
Ca2Al3(SiO4)3(OH)
Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous
Vitreous, Pearly
Pleochroism
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
colorless.
Transparency
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Transparent
Refractive Index
1.685-1.707
1.561-1.583
Crystal System
Orthorhombic
Triclinic
Birefringence
0.006-0.018
0.010-0.011
Clarity
Transparent
Transparent
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Poor
Reproductive
Supports reproductive health
-
Psychology
Transformation
Clarity
Healing
Emotional healing
Emotional healing
Qualities Associated
-
Clarity
Zoisite Vs Bytownite Fracture
Fracture is an important parameter when you compare Zoisite and Bytownite Physical Properties. It is necessary to understand the significance of these properties, before you compare Zoisite 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 Zoisite is Uneven, Conchoidal and Even. Bytownite fracture is Uneven.
Zoisite Vs Bytownite Luster
A primary knowledge about Zoisite 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. Zoisite exhibits Vitreous luster. Bytownite, on other hand, exhibits Vitreous and Pearly luster.