Origin
Southern and central Africa
Australia
Color
Black, Reddish, gray, Red
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
Black, Brown, Reddish, Red
Not Available
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
Not Available
Powers
Healing
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
1.97-2.22
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
Cleavage
None, may show partings on {0001} and {10 1 1}
Not Available
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
SiO 2 + H 2OUlrich Henn and Claudio C.
Luster
Not Available
Not Available
Pleochroism
O = brownish red; E = yellowish red
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
Transparent, Translucent
Refractive Index
2.690-3.220
1.370-1.470
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Not Available
Birefringence
0.280
Not Available
Clarity
OpaqueHerve Nicolas Lazzarelli
Transparent
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 Black Opal Fracture
Fracture is an important parameter when you compare Hematite and Black Opal Physical Properties. It is necessary to understand the significance of these properties, before you compare Hematite Vs Black Opal 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. Black Opal fracture is ConchoidalArthur Thomas, ConchoidalArthur Thomas, Gemstones (2009) and Gemstones (2009).
Hematite Vs Black Opal Luster
A primary knowledge about Hematite vs Black Opal 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.
