Origin
Southern and central Africa
Canada, Brazil, Kenya, Tanzania, Madagascar, Burma, Afghanistan
Color
Brown, Green, gray, White
Violet, White, gray, Brown, pink, Yellow
Specific Gravity
3.15-3.259
2.58-2.74
Fracture
-
ConchoidalWalter Schumann, Splintery
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
{100} Distinct, {110} Distinct
Mohs Hardness
5.5-6
5.5-6
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references
Pleochroism
Weak to moderate
-
Transparency
Transparent
-
Refractive Index
1.625-1.718
1.540-1.579
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
tetragonal
Birefringence
-9999
0.006-0.037
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Psychology
Focus
Creativity
Healing
-
Emotional healing
Qualities Associated
Protection
Problem Solving & Creativity
Gedrite Vs Scapolite Fracture
Fracture is an important parameter when you compare Gedrite and Scapolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Scapolite 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. Scapolite fracture is ConchoidalWalter Schumann and Splintery.
Gedrite Vs Scapolite Luster
A primary knowledge about Gedrite vs Scapolite 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.