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