Origin
USA, Switzerland, Tanzania, Madagascar, Russia, Sri Lanka
USA, Mexico
Color
Colorless, Yellow, pink, Red
Green, Brown, Greenish, Black
Streak
White
Greenish, gray
Specific Gravity
2.90-2.98
3.19-3.56
Fracture
Conchoidal, ConchoidalWalter Schumann
Uneven, Conchoidal
Cleavage
Distinct on {11 2 0}, imperfect on {10 1 1}
{110} Perfect, {010} Indistinct
Mohs Hardness
7.5-8
5.5-6
Chemical Composition
Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Vitreous, Resinous
Pleochroism
Distinct: colorless orangy-yellowHerve Nicolas Lazzarelli
Pale green
Transparency
-
Transparent, Translucent
Refractive Index
1.650-1.695
1.671-1.774
Crystal System
Trigonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
Birefringence
0.016
-9999
Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
Neurological
-
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Psychology
Clarity
Courage
Healing
Emotional healing
Emotional healing
Qualities Associated
Spiritual Activation
Grounding
Phenakite Vs Augite Fracture
Fracture is an important parameter when you compare Phenakite and Augite Physical Properties. It is necessary to understand the significance of these properties, before you compare Phenakite Vs Augite 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 Phenakite is Conchoidal and ConchoidalWalter Schumann. Augite fracture is Uneven and Conchoidal.
Phenakite Vs Augite Luster
A primary knowledge about Phenakite vs Augite 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. Phenakite exhibits Vitreous luster. Augite, on other hand, exhibits Vitreous and Resinous luster.