Origin
Southern and central Africa, violet, blue, violet, blue
USA
Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
White
For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Not Available
Planet
Saturn
Not Available
Element of Planets
Water
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Not Available
Deities
Isis
Not Available
Not to wear with
Not Available
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Powers
Healing
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
3.26-3.41
4.28-4.42
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Distinct on [010] and [100] poor on [101]
Mohs Hardness
7-8.5
5-5.5
Chemical Composition
AlAl6O3BSi3O18
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
colorless.
Dispersion
None
Not Available
Transparency
Translucent, Translucent to opaque
OpaqueAnthony et al, Opaque, Transparent
Refractive Index
1.669-1.723
1.760-1.774
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
monoclinic
Birefringence
0.011-0.037
0.012
Clarity
Translucent
OpaqueAnthony et al
Neurological
Not Available
Not Available
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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Dumortierite Vs Esperite Fracture
Fracture is an important parameter when you compare Dumortierite and Esperite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Esperite 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. Esperite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Metallic.
Dumortierite Vs Esperite Luster
A primary knowledge about Dumortierite vs Esperite 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. Esperite, on other hand, exhibits Vitreous luster.