Origin
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Southern and central Africa
Color
Colorless, Yellow, Green, Violet, White, Blue, Red, pink
Brown, Green, gray, White
For which Rashi?
Pisces, Taurus, Gemini, Libra
-
Element of Planets
Water
-
Specific Gravity
3.95-4.03
3.15-3.259
Cleavage
None, but may exhibit parting
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Chemical Composition
Al 2 O 3
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Adamantine
Vitreous
Pleochroism
Strong
Weak to moderate
Transparency
Transparent, Translucent, Transparent to opaque
Transparent
Refractive Index
1.762-1.788
1.625-1.718
Crystal System
Trigonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.008-0.009
-9999
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Psychology
Intuition
Focus
Healing
Emotional healing
-
Qualities Associated
Wisdom
Protection
Sapphire Vs Gedrite Fracture
Fracture is an important parameter when you compare Sapphire and Gedrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sapphire Vs Gedrite 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 Sapphire is Uneven.
Sapphire Vs Gedrite Luster
A primary knowledge about Sapphire vs Gedrite 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. Sapphire exhibits Vitreous and Adamantine luster. Gedrite, on other hand, exhibits Vitreous luster.