Chrysoberyl Vs Bertrandite
Origin
Brazil, Madagascar, Zimbabwe, Russia, Sri Lanka, India, Burma, Origins: Brazil
Southern and central Africa
Color
Greenish, Green, Brownish, Red, Blue, Brown, gray
Colorless, Yellow
Element of Planets
Earth, Water
-
Specific Gravity
3.69-3.81
2.59-2.60
Fracture
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
-
Cleavage
Distinct on {110}, imperfect on {010}, poor on {001}
{001} Perfect, {110} Distinct, {101} Distinct
Chemical Composition
BeAl 2 O 4
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Pleochroism
X = red; Y = yellow-orange; Z = emerald-green
none.
Transparency
Transparent, Translucent, Transparent to translucent
TransparentAnthony et al
Refractive Index
1.746-1.763
1.583-1.614
Optic Character
Biaxial/+
-
Crystal System
Orthorhombic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
0.007-0.013
-9999
Clarity
Transparent
TransparentAnthony et al
Cardiovascular
Supports heart health
Promotes mental clarity
Psychology
Transformation
Harmony
Healing
Physical healing
Emotional healing
Qualities Associated
Transformation
Creativity
Chrysoberyl Vs Bertrandite Fracture
Fracture is an important parameter when you compare Chrysoberyl and Bertrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Chrysoberyl Vs Bertrandite 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 Chrysoberyl is Uneven, Conchoidal to uneven and ConchoidalWalter Schumann.
Chrysoberyl Vs Bertrandite Luster
A primary knowledge about Chrysoberyl vs Bertrandite 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. Chrysoberyl exhibits Vitreous luster. Bertrandite, on other hand, exhibits Vitreous luster.