Origin
Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia
Southern and central Africa
Color
Blue, Violet, Colorless, Red, Green, Brown
Colorless, Colorless, gray, White, White
For which Rashi?
Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio
Not Available
Planet
Pluto
Not Available
Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Projective
Not Available
Deities
Hephaestus
Not Available
Not to wear with
Not Available
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Powers
Money
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
none
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.64-3.66
2.40-2.42
Fracture
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)
Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic
Cleavage
None, but may exhibit slight parting
{010} Perfect, {001} Distinct
Chemical Composition
MgAl2O4
Ca 2B 6O 11 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Absent
NilArthur Thomas
Transparency
Transparent, Translucent, Transparent to translucent
Transparent
Refractive Index
1.73
1.584-1.615
Optic Character
Not Available
Not Available
Crystal System
Isometric
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
Not Available
0.028-0.030
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Spinel Vs Colemanite Fracture
Fracture is an important parameter when you compare Spinel and Colemanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel Vs Colemanite 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 Spinel is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Colemanite fracture is Brittle, Gemstones (2009), Gemstones (2009), Metallic and UnevenArthur Thomas.
Spinel Vs Colemanite Luster
A primary knowledge about Spinel vs Colemanite 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. Spinel exhibits Vitreous luster. Colemanite, on other hand, exhibits Vitreous luster.