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