Gedrite Vs Purpurite
Origin
Southern and central Africa
Southern and central Africa
Color
Brown, Green, gray, White
Violet, Brownish, Black, pink, Red, Reddish
Specific Gravity
3.15-3.259
3.2-3.4
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
[100] [001] perfect
Mohs Hardness
5.5-6
4-4.5
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
MnPO 4Walter Schumann , Gemstones of the world (2001) More from other references
Pleochroism
Weak to moderate
StrongArthur Thomas
Transparency
Transparent
TranslucentWalter Schumann
Refractive Index
1.625-1.718
1.85-1.92
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Orthorhombic
Birefringence
-9999
0.070
Clarity
Transparent
TranslucentWalter Schumann
Healing
-
Emotional healing
Qualities Associated
Protection
Spiritual Awareness
Gedrite Vs Purpurite Fracture
Fracture is an important parameter when you compare Gedrite and Purpurite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Purpurite 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. Purpurite fracture is Uneven.
Gedrite Vs Purpurite Luster
A primary knowledge about Gedrite vs Purpurite 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.