Gedrite Vs Crocoite
Origin
Southern and central Africa
Australia, Southern and central Africa
Color
Brown, Green, gray, White
Red, Yellow, orange
Streak
gray, White
yellowish orange
Specific Gravity
3.15-3.259
5.90-6.10
Cleavage
Gedrite Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.
{110} Distinct, {001} Indistinct, {100} Indistinct
Mohs Hardness
5.5-6
2.5-3
Chemical Composition
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous
Adamantine
Pleochroism
Weak to moderate
Distinctly trichroic
Transparency
Transparent
Transparent
Refractive Index
1.625-1.718
2.31-2.66
Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Birefringence
-9999
-9999
Clarity
Transparent
Transparent
Cardiovascular
-
Supports heart health
Healing
-
Physical healing
Qualities Associated
Protection
Passion
Gedrite Vs Crocoite Fracture
Fracture is an important parameter when you compare Gedrite and Crocoite Physical Properties. It is necessary to understand the significance of these properties, before you compare Gedrite Vs Crocoite 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. Crocoite fracture is Conchoidal.
Gedrite Vs Crocoite Luster
A primary knowledge about Gedrite vs Crocoite 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. Crocoite, on other hand, exhibits Adamantine luster.