Origin
Southern and central Africa
Brazil, Colombia, Southern and central Africa
Color
Brown, Green, gray, White
Greenish, Blue, Colorless, White, Green
Specific Gravity
3.15-3.259
3.08-3.12
Fracture
-
ConchoidalWalter Schumann
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
{010} Perfect
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
BeAlSiO 4(OH)Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Weak to moderate
Weak: colorless-(greenish) yellow
Transparency
Transparent
-
Refractive Index
1.625-1.718
1.650-1.677
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a
Birefringence
-9999
0.019-0.025
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Healing
-
Emotional healing
Qualities Associated
Protection
Communication
Gedrite Vs Euclase Fracture
Fracture is an important parameter when you compare Gedrite and Euclase Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Euclase 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. Euclase fracture is ConchoidalWalter Schumann.
Gedrite Vs Euclase Luster
A primary knowledge about Gedrite vs Euclase 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. Euclase, on other hand, exhibits Vitreous luster.