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