Vivianite Vs Zoisite
Origin
Southern and central Africa
Pakistan, Tanzania
Color
Blue, Green, Colorless
Brown, gray, Green, Blue, rose, Red
Streak
White
White, Colorless
Specific Gravity
2.64-2.70
3.20-3.50
Fracture
-
Uneven, Conchoidal, Even
Cleavage
{010} Perfect
Perfect {010} imperfect {100}
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Ca2Al3(SiO4)3(OH)
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green
Transparency
Transparent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.
Refractive Index
1.560-1.640
1.685-1.707
Crystal System
-
Orthorhombic
Birefringence
0.054-0.075
0.006-0.018
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Excellent
Reproductive
-
Supports reproductive health
Psychology
Hope
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
-
Vivianite Vs Zoisite Fracture
Fracture is an important parameter when you compare Vivianite and Zoisite Physical Properties. It is necessary to understand the significance of these properties, before you compare Vivianite Vs Zoisite 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. Zoisite fracture is Uneven, Conchoidal and Even.
Vivianite Vs Zoisite Luster
A primary knowledge about Vivianite vs Zoisite 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. Vivianite exhibits Vitreous and Pearly luster. Zoisite, on other hand, exhibits Vitreous luster.