Rubellite Vs Gedrite
Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Southern and central Africa
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Brown, Green, gray, White
Specific Gravity
3.01-3.06
3.15-3.259
Cleavage
Indiscernible
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Mohs Hardness
7-7.5
5.5-6
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Weak to moderate
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.614-1.666
1.625-1.718
Crystal System
-
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Birefringence
0.014-0.040
-9999
Clarity
Transparent
Transparent
Healing
Emotional healing
-
Qualities Associated
Passion
Protection
Rubellite Vs Gedrite Fracture
Fracture is an important parameter when you compare Rubellite and Gedrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite 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 Rubellite is Conchoidal.
Rubellite Vs Gedrite Luster
A primary knowledge about Rubellite 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. Gedrite, on other hand, exhibits Vitreous luster.