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