Origin
Southern and central Africa, Orange, blue, Orange, blue
  
Southern and central Africa
  
Color
White, Blue
  
Black, Reddish, gray, Red
  
Streak
Not Available
  
Black, Brown, Reddish, Red
  
For which Rashi?
Pisces
  
Aries, Aquarius, Aries, Aquarius, Aries, Aquarius
  
Planet
Neptune
  
Saturn
  
Element of Planets
Water
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Receptive
  
Projective
  
Deities
Venus
  
Mars
  
Not to wear with
Not Available
  
Not Available
  
Powers
Healing, Protection
  
Healing
  
Birthstone
  
  
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
2.60-2.70
  
5.00-5.30
  
Fracture
Irregular, Irregular, Gemstones of the world (2001)
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
  
Cleavage
Not Available
  
None, may show partings on {0001} and {10 1 1}
  
Mohs Hardness
3-4
  
6
  
Chemical Composition
CaCO 3Ulrich Henn and Claudio C.
  
Fe 2O 3Arthur Thomas , Gemstones (2009)
  
Luster
Not Available
  
Not Available
  
Pleochroism
AbsentWalter Schumann
  
O = brownish red; E = yellowish red
  
Dispersion
None
  
Not Available
  
Transparency
Translucent
  
OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references
  
Refractive Index
1.486-1.658
  
2.690-3.220
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Trigonal
  
Trigonal
  
Birefringence
0.160-0.172
  
0.280
  
Clarity
Translucent
  
OpaqueHerve Nicolas Lazzarelli
  
Physical
  
  
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
  
Coral Vs Hematite Fracture
Fracture is an important parameter when you compare Coral and Hematite Physical Properties. It is necessary to understand the significance of these properties, before you compare Coral 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 Coral is Gemstones of the world (2001), Irregular and Irregular. Hematite fracture is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.
Coral Vs Hematite Luster
A primary knowledge about Coral 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.