Origin
Southern and central Africa, violet, blue, violet, blue
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Red, Reddish, orange, Brown
For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Not Available
Planet
Saturn
Not Available
Element of Planets
Water
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Energy
Receptive
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Deities
Isis
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Not to wear with
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Powers
Healing
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Planetary
Not Available
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Talisman
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
3.26-3.41
4.12-4.18
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
ConchoidalArthur Thomas, Conchoidal, Brittle
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
{???} Distinct
Mohs Hardness
7-8.5
7-7.5
Chemical Composition
AlAl6O3BSi3O18
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Not Available
Transparency
Translucent, Translucent to opaque
Gemmological Tables (2004) More from other references
Refractive Index
1.669-1.723
1.789-1.820
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
Isometric
Birefringence
0.011-0.037
0.027
Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Not Available
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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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Dumortierite Vs Spessartine Fracture
Fracture is an important parameter when you compare Dumortierite and Spessartine Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Spessartine 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 Dumortierite is ConchoidalWalter Schumann, Fibrous and Gemstones of the world (2001) More from other references. Spessartine fracture is Brittle, Conchoidal and ConchoidalArthur Thomas.
Dumortierite Vs Spessartine Luster
A primary knowledge about Dumortierite vs Spessartine 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. Dumortierite exhibits Vitreous luster. Spessartine, on other hand, exhibits Vitreous luster.