Cassiterite Vs Astrophyllite
Origin
Sri Lanka
Canada, Russia
Color
Black, Brownish, Reddish, Brown, Red, Yellow, White, Colorless, Green, gray
Brown, Yellow, Greenish, Brownish, Red
Streak
White, Brownish
Brown, White
Specific Gravity
6.86-7.03
3.2-3.4
Fracture
Subconchoidal, Uneven, Conchoidal, Irregular
Uneven
Cleavage
{100} imperfect, {110} indistinct; partings on {111} or {011}
Perfect on [001] imperfect on [100]
Chemical Composition
SnO 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
Adamantine, Greasy
Greasy, Pearly
Pleochroism
Pleochroic haloes have been observed. Dichroic in yellow
Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
Transparency
Transparent, Translucent
Translucent
Refractive Index
1.990-2.105
1.678-1.758
Crystal System
tetragonal
Triclinic
Birefringence
0.096-0.098
0.050
Clarity
Transparent
Translucent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Poor
Excellent
Psychology
Focus
Self-Reflection
Healing
Emotional healing
Spiritual healing
Qualities Associated
Manifestation
Self-Reflection
Cassiterite Vs Astrophyllite Fracture
Fracture is an important parameter when you compare Cassiterite and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Cassiterite 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 Cassiterite is Subconchoidal, Uneven, Conchoidal and Irregular. Astrophyllite fracture is Uneven.
Cassiterite Vs Astrophyllite Luster
A primary knowledge about Cassiterite 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. Cassiterite exhibits Adamantine and Greasy luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.