Alexandrite Vs Vivianite
Origin
Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Origins: Russia
Southern and central Africa
Color
Green
Blue, Green, Colorless
For which Rashi?
Scorpio
-
Element of Planets
Earth
-
Specific Gravity
3.69-3.81
2.64-2.70
Cleavage
1,1 ; 3,2.
{010} Perfect
Chemical Composition
BeAl 2 O 4
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Pearly
Pleochroism
-
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Transparency
Transparent, Transparent to nearly opaque
Transparent
Refractive Index
1.739-1.770
1.560-1.640
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic
-
Birefringence
0.007-0.010
0.054-0.075
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Aids in grounding and protection
-
Respiratory
Excellent
Good
Reproductive
Supports reproductive health
-
Psychology
Transformation
Hope
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Transformation
Alexandrite Vs Vivianite Fracture
Fracture is an important parameter when you compare Alexandrite and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Vivianite 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.
Alexandrite Vs Vivianite Luster
A primary knowledge about Alexandrite vs Vivianite 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. Alexandrite exhibits Vitreous luster. Vivianite, on other hand, exhibits Vitreous and Pearly luster.