Origin
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
Southern and central Africa
Color
Colorless, Yellow, pink, Red
Brown, Green, gray, White
Specific Gravity
2.90-2.98
3.15-3.259
Fracture
Conchoidal, ConchoidalWalter Schumann
-
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Weak to moderate
Transparency
-
Transparent
Refractive Index
1.650-1.695
1.625-1.718
Crystal System
Trigonal
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.016
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Cardiovascular
Supports heart health
-
Healing
Emotional healing
-
Qualities Associated
Spiritual Activation
Protection
Phenakite Vs Gedrite Fracture
Fracture is an important parameter when you compare Phenakite and Gedrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite 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 Phenakite is Conchoidal and ConchoidalWalter Schumann.
Phenakite Vs Gedrite Luster
A primary knowledge about Phenakite 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. Phenakite exhibits Vitreous luster. Gedrite, on other hand, exhibits Vitreous luster.