Gedrite Vs Benitoite
Origin
Southern and central Africa
USA, San Benito Country, USA. Very rare collectors stone. Found only in San Benito County, California
Color
Brown, Green, gray, White
Violet, Blue, Colorless, pink, White
Solubility
-
Insoluble: HCl
Specific Gravity
3.15-3.259
3.61-3.68
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
[10 1 1] poor
Mohs Hardness
5.5-6
6-6.5
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
BaTiSi 3O 9Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Weak to moderate
O = colorless; E = purple
Transparency
Transparent
Transparent
Refractive Index
1.625-1.718
1.757-1.804
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Hexagonal
Birefringence
-9999
0.047
Clarity
Transparent
Transparent
Psychology
Focus
Transformation
Healing
-
Emotional healing
Qualities Associated
Protection
Transformation
Gedrite Vs Benitoite Fracture
Fracture is an important parameter when you compare Gedrite and Benitoite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Benitoite 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. Benitoite fracture is Conchoidal.
Gedrite Vs Benitoite Luster
A primary knowledge about Gedrite vs Benitoite 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. Benitoite, on other hand, exhibits Vitreous luster.