Dioptase Vs Andalusite
Origin
Kazakhstan
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Green, Blue
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Specific Gravity
3.25-3.35
3.05-3.21
Fracture
Conchoidal, ConchoidalWalter Schumann
Uneven, Subconchoidal, Splintery
Cleavage
Perfect in three directions
Good on {110}, poor on {100}
Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Weak; dark emerald green
strongly trichroic
Transparency
TranslucentHerve Nicolas Lazzarelli
Transparent, Translucent
Refractive Index
1.644-1.720
1.627-1.650
Crystal System
Trigonal
Orthorhombic
Birefringence
0.051-0.053
0.009-0.010
Clarity
TranslucentHerve Nicolas Lazzarelli
Transparent
Neurological
Aids in mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Emotional Healing
Perception
Healing
Emotional healing
Physical healing
Qualities Associated
Emotional Healing
Self-Realization
Dioptase Vs Andalusite Fracture
Fracture is an important parameter when you compare Dioptase and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dioptase Vs Andalusite 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 Dioptase is Conchoidal and ConchoidalWalter Schumann. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Dioptase Vs Andalusite Luster
A primary knowledge about Dioptase vs Andalusite 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. Dioptase exhibits Vitreous luster. Andalusite, on other hand, exhibits Vitreous and Greasy luster.