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