Opal Vs Andalusite
Origin
Ethiopia
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Yellow, White, Red, Brown, Blue
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
For which Rashi?
Cancer, Libra, Scorpio
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Element of Planets
Earth, Air, Water
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Powers
Astral Projection, Psychicism
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Tenacity
BrittleWalter Schumann
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Solubility
hot salt water
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Specific Gravity
1.98-2.25
3.05-3.21
Fracture
Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
None
Good on {110}, poor on {100}
Chemical Composition
SiO2 · nH2O
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Greasy
Pleochroism
None
strongly trichroic
Transparency
Transparent, Translucent, Transparent to translucent
Transparent, Translucent
Refractive Index
1.37-1.52
1.627-1.650
Crystal System
Trigonal
Orthorhombic
Birefringence
-9999
0.009-0.010
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Creativity
Perception
Healing
Emotional healing
Physical healing
Qualities Associated
Creativity
Self-Realization
Opal Vs Andalusite Fracture
Fracture is an important parameter when you compare Opal and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Opal Vs Andalusite 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 Opal is Conchoidal. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Opal Vs Andalusite Luster
A primary knowledge about Opal vs Andalusite 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. Opal exhibits Vitreous and Pearly luster. Andalusite, on other hand, exhibits Vitreous and Greasy luster.