Origin
USA, Madagascar, India, Sri Lanka, Burma, Australia, Italy, Brazil
Canada, USA, Mexico, Madagascar, Australia, Finland, India, Russia
Color
Blue, Green, Brownish, Greenish, Colorless, gray
Violet, Colorless, gray, White, Green
For which Rashi?
-
Aquarius
Element of Planets
-
Water
Powers
-
Protection, Psychic Power
Specific Gravity
3.20-3.26
2.69-2.72
Fracture
Splintery
Uneven, Conchoidal
Cleavage
{010} perfect
Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}
Mohs Hardness
6-7.5
6-6.5
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth Edition (2006)
(Na,Ca)1-2Si3-2O8
Luster
Vitreous, Subadamantine, Silky
Vitreous, Pearly
Pleochroism
Colourless to pale brown to yellow
-
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.653-1.685
1.554-1.573
Crystal System
Orthorhombic
Triclinic
Birefringence
0.020-0.022
0.008-0.010
Clarity
Transparent
Transparent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Creativity
Transformation
Healing
Emotional healing
Emotional healing
Qualities Associated
Creativity
Magic
Sillimanite Vs Labradorite Fracture
Fracture is an important parameter when you compare Sillimanite and Labradorite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sillimanite 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 Sillimanite is Splintery. Labradorite fracture is Uneven and Conchoidal.
Sillimanite Vs Labradorite Luster
A primary knowledge about Sillimanite 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. Sillimanite exhibits Vitreous, Subadamantine and Silky luster. Labradorite, on other hand, exhibits Vitreous and Pearly luster.