Kyanite Vs Bertrandite
Origin
Brazil, USA, Switzerland, Kenya, Mozambique, Russia, Nepal, India, Burma
Southern and central Africa
Color
Blue, Yellow, Colorless, White, gray, Green, Black
Colorless, Yellow
For which Rashi?
Aries, Libra, Taurus
-
Element of Planets
Water
-
Specific Gravity
3.53-3.65
2.59-2.60
Cleavage
[100] perfect [010] imperfect with 79° angle between
{001} Perfect, {110} Distinct, {101} Distinct
Chemical Composition
Al2SiO5
Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Trichroic
none.
Transparency
-
TransparentAnthony et al
Refractive Index
1.71-1.74
1.583-1.614
Crystal System
Triclinic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Birefringence
-9999
-9999
Clarity
-
TransparentAnthony et al
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
Promotes mental clarity
Reproductive
Supports reproductive health
-
Psychology
Inner bridges
Harmony
Healing
Physical healing
Emotional healing
Qualities Associated
Inner Peace
Creativity
Kyanite Vs Bertrandite Fracture
Fracture is an important parameter when you compare Kyanite and Bertrandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Kyanite 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 Kyanite is Splintery.
Kyanite Vs Bertrandite Luster
A primary knowledge about Kyanite 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. Kyanite exhibits Vitreous and Pearly luster. Bertrandite, on other hand, exhibits Vitreous luster.