Origin
Southern and central Africa
Southern and central Africa, violet, blue
Color
Black, Reddish, gray, Red
Blue, Violet, Brown, White, Greenish, pink
Streak
Black, Brown, Reddish, Red
White
For which Rashi?
Aries, Aquarius
Leo, Sagittarius
Element of Planets
Not Available
Water
Energy
Projective
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Not to wear with
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
5.00-5.30
3.26-3.41
Fracture
Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Cleavage
None, may show partings on {0001} and {10 1 1}
Distinct on {100}, poor on {110}; parting on {001}
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
AlAl6O3BSi3O18
Luster
Not Available
Vitreous
Pleochroism
O = brownish red; E = yellowish red
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Dispersion
Not Available
None
Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Translucent, Translucent to opaque
Refractive Index
2.690-3.220
1.669-1.723
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Orthorhombic
Birefringence
0.280
0.011-0.037
Clarity
OpaqueHerve Nicolas Lazzarelli
Translucent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Hematite Vs Dumortierite Fracture
Fracture is an important parameter when you compare Hematite and Dumortierite Physical Properties. It is necessary to understand the significance of these properties, before you compare Hematite Vs Dumortierite 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 Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal and Brittle. Dumortierite fracture is Fibrous, ConchoidalWalter Schumann and Gemstones of the world (2001) More from other references.
Hematite Vs Dumortierite Luster
A primary knowledge about Hematite vs Dumortierite 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, on other hand, exhibits Vitreous luster.