Gedrite Vs Sugilite
Origin
Southern and central Africa
Canada, Southern and central Africa, Italy, Australia, India
Color
Brown, Green, gray, White
Violet, Brownish, Yellow, Reddish, Pale pink
Planet
-
Mercury, Jupiter
Element of Planets
-
Water
Specific Gravity
3.15-3.259
2.69-2.79
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
Poor on {0001}
Mohs Hardness
5.5-6
5.5-6.5
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Weak to moderate
Weak
Transparency
Transparent
Translucent
Refractive Index
1.625-1.718
1.607-1.612
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Hexagonal
Birefringence
-9999
0.003
Clarity
Transparent
Translucent
Neurological
-
Enhances mental clarity and focus
Psychology
Focus
Spirituality
Healing
-
Emotional healing
Qualities Associated
Protection
Spiritual Protection
Gedrite Vs Sugilite Fracture
Fracture is an important parameter when you compare Gedrite and Sugilite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Sugilite 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. Sugilite fracture is Conchoidal.
Gedrite Vs Sugilite Luster
A primary knowledge about Gedrite vs Sugilite 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. Sugilite, on other hand, exhibits Vitreous luster.