Euclase Vs Vivianite
Origin
Brazil, Colombia, Southern and central Africa
Southern and central Africa
Color
Greenish, Blue, Colorless, White, Green
Blue, Green, Colorless
For which Rashi?
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Planet
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Element of Planets
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Finger
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Ring Metal
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Energy
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Deities
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Not to wear with
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Powers
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Planetary
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Talisman
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Tenacity
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Solubility
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Durability
Not Available
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Specific Gravity
3.08-3.12
2.64-2.70
Fracture
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle, Metallic
(e.g. graphite).
Cleavage
{010} Perfect
{010} Perfect
Mohs Hardness
7.5
Not Available
Chemical Composition
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Luster
Vitreous
Vitreous, Pearly
Pleochroism
Weak: colorless-(greenish) yellow
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Transparency
Gemmological Tables (2004) More from other references
Transparent
Refractive Index
1.650-1.677
1.560-1.640
Optic Character
Not Available
Not Available
Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Not Available
Birefringence
0.019-0.025
0.054-0.075
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Euclase Vs Vivianite Fracture
Fracture is an important parameter when you compare Euclase and Vivianite Physical Properties. It is necessary to understand the significance of these properties, before you compare Euclase 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. Fracture observed in Euclase is Brittle, ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001), Gemstones of the world (2001) and Metallic. Vivianite fracture is (e.g. graphite)..
Euclase Vs Vivianite Luster
A primary knowledge about Euclase 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. Euclase exhibits Vitreous luster. Vivianite, on other hand, exhibits Pearly and Vitreous luster.