Gedrite Vs Riebeckite
Origin
Southern and central Africa
-
Color
Brown, Green, gray, White
Black, Blue, Yellow, Green
Streak
gray, White
Grey, Greenish, Brown
Specific Gravity
3.15-3.259
3.28-3.44
Fracture
-
Uneven, Splintery
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
Mohs Hardness
5.5-6
5.0-6.0
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Na2Fe2+3Fe3+2Si8O22(OH)2
Luster
Vitreous
Vitreous, Silky
Pleochroism
Weak to moderate
X = blue
Transparency
Transparent
-
Refractive Index
1.625-1.718
1.680-1.698
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
monoclinic
Birefringence
-9999
0.005-0.008
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Focus
Empowerment
Healing
-
Emotional healing
Qualities Associated
Protection
Clear Thinking
Gedrite Vs Riebeckite Fracture
Fracture is an important parameter when you compare Gedrite and Riebeckite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Riebeckite 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. Riebeckite fracture is Uneven and Splintery.
Gedrite Vs Riebeckite Luster
A primary knowledge about Gedrite vs Riebeckite 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. Riebeckite, on other hand, exhibits Vitreous and Silky luster.