Gedrite Vs Grossular
Origin
Southern and central Africa
Sri Lanka, India, Brazil
Color
Brown, Green, gray, White
Green, Brown, Colorless, gray, Yellow
Streak
gray, White
Brownish, White
Specific Gravity
3.15-3.259
3.55-3.73
Fracture
-
Conchoidal, Uneven
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
none
Mohs Hardness
5.5-6
7-7.5
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Luster
Vitreous
Greasy, Vitreous
Pleochroism
Weak to moderate
None
Transparency
Transparent
-
Refractive Index
1.625-1.718
1.730-1.760
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
cubic
Birefringence
-9999
0.020
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Reproductive
-
Helps in digestion and alleviates indigestion
Psychology
Focus
Abundance
Healing
-
Physical healing
Qualities Associated
Protection
Abundance
Gedrite Vs Grossular Fracture
Fracture is an important parameter when you compare Gedrite and Grossular Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Grossular 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. Grossular fracture is Conchoidal and Uneven.
Gedrite Vs Grossular Luster
A primary knowledge about Gedrite vs Grossular 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. Grossular, on other hand, exhibits Greasy and Vitreous luster.