Rubellite Vs Crocoite
Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
Australia, Southern and central Africa
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Red, Yellow, orange
Streak
-
yellowish orange
Specific Gravity
3.01-3.06
5.90-6.10
Fracture
Conchoidal
Conchoidal
Cleavage
Indiscernible
{110} Distinct, {001} Indistinct, {100} Indistinct
Mohs Hardness
7-7.5
2.5-3
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Distinctly trichroic
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.614-1.666
2.31-2.66
Crystal System
-
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Birefringence
0.014-0.040
-9999
Clarity
Transparent
Transparent
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Psychology
Passion
Passion
Healing
Emotional healing
Physical healing
Qualities Associated
Passion
Passion
Rubellite Vs Crocoite Fracture
Fracture is an important parameter when you compare Rubellite and Crocoite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite 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. Fracture observed in Rubellite is Conchoidal. Crocoite fracture is Conchoidal.
Rubellite Vs Crocoite Luster
A primary knowledge about Rubellite 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. Crocoite, on other hand, exhibits Adamantine luster.