Andalusite Vs Cuprite
Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Southern and central Africa
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Red, Brown, Black
Streak
White
Brownish, Red
Specific Gravity
3.05-3.21
5.85-6.15
Fracture
Uneven, Subconchoidal, Splintery
Conchoidal
Cleavage
Good on {110}, poor on {100}
Fair in four directions forming octahedrons
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Cu 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Adamantine
Pleochroism
strongly trichroic
visible
Transparency
Transparent, Translucent
TranslucentWalter Schumann
Refractive Index
1.627-1.650
2.849
Crystal System
Orthorhombic
cubic
Birefringence
0.009-0.010
-9999
Clarity
Transparent
TranslucentWalter Schumann
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Poor
Psychology
Perception
Vitality
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Vitality
Andalusite Vs Cuprite Fracture
Fracture is an important parameter when you compare Andalusite and Cuprite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Cuprite 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 Andalusite is Uneven, Subconchoidal and Splintery. Cuprite fracture is Conchoidal.
Andalusite Vs Cuprite Luster
A primary knowledge about Andalusite vs Cuprite 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. Andalusite exhibits Vitreous and Greasy luster. Cuprite, on other hand, exhibits Adamantine luster.