Hematite Vs Grandidierite
Origin
Southern and central Africa
Madagascar
Color
Black, Reddish, gray, Red
Green
Streak
Black, Brown, Reddish, Red
White
For which Rashi?
Aries, Aquarius, Aries, Aquarius, Aries, Aquarius
Not Available
Planet
Saturn
Not Available
Element of Planets
Not Available
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective
Not Available
Deities
Mars
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
Brittle
Not Available
Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
5.00-5.30
2.85-3.00
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Cleavage
None, may show partings on {0001} and {10 1 1}
Perfect
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Luster
Not Available
Vitreous, Pearly
Pleochroism
O = brownish red; E = yellowish red
visible
Dispersion
Not Available
Not Available
Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Gemmological Tables (2004) More from other references
Refractive Index
2.690-3.220
1.578-1.639
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.280
0.037-0.039
Clarity
OpaqueHerve Nicolas Lazzarelli
Gemmological Tables (2004) More from other references
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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Hematite Vs Grandidierite Fracture
Fracture is an important parameter when you compare Hematite and Grandidierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Hematite Vs Grandidierite 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 Hematite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven. Grandidierite fracture is Brittle, Brittle, Gemstones (2009), Uneven and UnevenArthur Thomas.
Hematite Vs Grandidierite Luster
A primary knowledge about Hematite vs Grandidierite 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. Grandidierite, on other hand, exhibits Pearly and Vitreous luster.