Vivianite Vs Danburite
Origin
Southern and central Africa
USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Origins: USA, Germany, Japan
Color
Blue, Green, Colorless
Yellow, Brown, Colorless, White, gray, Brownish
Specific Gravity
2.64-2.70
2.97-3.03
Fracture
-
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
{010} Perfect
{001} Poor
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Greasy
Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
Weak: pale yellow yellow
Transparency
Transparent
-
Refractive Index
1.560-1.640
1.627-1.639
Optic Character
-
Biaxial/+
Crystal System
-
Orthorhombic
Birefringence
0.054-0.075
0.006
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Psychology
Hope
Spiritual Awareness
Healing
Emotional healing
Emotional healing
Qualities Associated
Transformation
Spiritual Awakening
Vivianite Vs Danburite Fracture
Fracture is an important parameter when you compare Vivianite and Danburite Physical Properties. It is necessary to understand the significance of these properties, before you compare Vivianite Vs Danburite 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. Danburite fracture is Uneven, ConchoidalWalter Schumann and Conchoidal.
Vivianite Vs Danburite Luster
A primary knowledge about Vivianite vs Danburite 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. Vivianite exhibits Vitreous and Pearly luster. Danburite, on other hand, exhibits Vitreous and Greasy luster.