Origin
Southern and central Africa
Canada, USA, Mexico, Madagascar, Australia, Not Available, Finland, India, Russia, Yellow, blue, Orange
Color
Violet, Blue, Red, Yellow, Brown, gray
Violet, Colorless, gray, White, Green
For which Rashi?
Not Available
Aquarius
Planet
Not Available
Not Available
Element of Planets
Not Available
Water
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Not Available
Isis
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection, Psychic Power
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
insoluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.90-4.05
2.69-2.72
Fracture
Uneven, Uneven, Gems, Difficult, Fibrous
Uneven, Conchoidal, Gems, Sixth Edition (2006)
Cleavage
None – parting in 3 directions
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Chemical Composition
Al 2O 3Arthur Thomas , Gemstones (2009)
(Na,Ca)1-2Si3-2O8
Luster
Adamantine, Vitreous
Vitreous, Pearly
Pleochroism
None
From the Congo
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.758-1.780
1.554-1.573
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Triclinic
Birefringence
0.007-0.010
0.008-0.010
Clarity
Gemmological Tables (2004) More from other references
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
Corundum Vs Labradorite Fracture
Fracture is an important parameter when you compare Corundum and Labradorite Physical Properties. It is necessary to understand the significance of these properties, before you compare Corundum Vs Labradorite 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 Corundum is Difficult, Fibrous, Gems, Uneven and Uneven. Labradorite fracture is Conchoidal, Gems, Sixth Edition (2006) and Uneven.
Corundum Vs Labradorite Luster
A primary knowledge about Corundum vs Labradorite 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. Corundum exhibits Adamantine and Vitreous luster. Labradorite, on other hand, exhibits Pearly and Vitreous luster.