Omphacite Vs Andalusite
Origin
Southern and central Africa
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Green
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Streak
Greenish, White
White
Specific Gravity
3.16-3.43
3.05-3.21
Fracture
Uneven, Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
{110} Good, {110} Good
Good on {110}, poor on {100}
Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Weak: colorless -- very pale green -- very pale green
strongly trichroic
Transparency
TranslucentAnthony et al
Transparent, Translucent
Refractive Index
1.662-1.723
1.627-1.650
Crystal System
-
Orthorhombic
Birefringence
-9999
0.009-0.010
Clarity
TranslucentAnthony et al
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Good
Excellent
Psychology
Empowerment
Perception
Healing
Physical healing
Physical healing
Qualities Associated
Transformation
Self-Realization
Omphacite Vs Andalusite Fracture
Fracture is an important parameter when you compare Omphacite and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Omphacite 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 Omphacite is Uneven and Conchoidal. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Omphacite Vs Andalusite Luster
A primary knowledge about Omphacite 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. Omphacite exhibits Vitreous luster. Andalusite, on other hand, exhibits Vitreous and Greasy luster.