Dioptase Vs Astrophyllite
Origin
Kazakhstan
Canada, Russia
Color
Green, Blue
Brown, Yellow, Greenish, Brownish, Red
Streak
Green
Brown, White
Specific Gravity
3.25-3.35
3.2-3.4
Fracture
Conchoidal, ConchoidalWalter Schumann
Uneven
Cleavage
Perfect in three directions
Perfect on [001] imperfect on [100]
Chemical Composition
CuSiO 2(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Luster
Vitreous
Greasy, Pearly
Pleochroism
Weak; dark emerald green
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Transparency
TranslucentHerve Nicolas Lazzarelli
Translucent
Refractive Index
1.644-1.720
1.678-1.758
Crystal System
Trigonal
Triclinic
Birefringence
0.051-0.053
0.050
Clarity
TranslucentHerve Nicolas Lazzarelli
Translucent
Neurological
Aids in mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Emotional Healing
Self-Reflection
Healing
Emotional healing
Spiritual healing
Qualities Associated
Emotional Healing
Self-Reflection
Dioptase Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Dioptase and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dioptase Vs Astrophyllite 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. Astrophyllite fracture is Uneven.
Dioptase Vs Astrophyllite Luster
A primary knowledge about Dioptase vs Astrophyllite 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. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.