Vivianite Vs Phenakite
Origin
Southern and central Africa
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Color
Blue, Green, Colorless
Colorless, Yellow, pink, Red
Specific Gravity
2.64-2.70
2.90-2.98
Fracture
-
Conchoidal, ConchoidalWalter Schumann
Cleavage
{010} Perfect
Distinct on {11 2 0}, imperfect on {10 1 1}
Mohs Hardness
-9999
7.5-8
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Transparency
Transparent
-
Refractive Index
1.560-1.640
1.650-1.695
Crystal System
-
Trigonal
Birefringence
0.054-0.075
0.016
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
-
Cardiovascular
-
Supports heart health
Respiratory
Good
Excellent
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Spiritual Activation
Vivianite Vs Phenakite Fracture
Fracture is an important parameter when you compare Vivianite and Phenakite Physical Properties. It is necessary to understand the significance of these properties, before you compare Vivianite Vs Phenakite 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. Phenakite fracture is Conchoidal and ConchoidalWalter Schumann.
Vivianite Vs Phenakite Luster
A primary knowledge about Vivianite vs Phenakite 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. Phenakite, on other hand, exhibits Vitreous luster.