Andalusite Vs Rutile
Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Brazil, Southern and central Africa, Sri Lanka
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Red, gray
Solubility
-
Insoluble in acids
Specific Gravity
3.05-3.21
4.20-4.30
Fracture
Uneven, Subconchoidal, Splintery
Uneven, Conchoidal
Cleavage
Good on {110}, poor on {100}
{110} good, 100 moderate, parting on {092} and {011}
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Luster
Vitreous, Greasy
Adamantine
Pleochroism
strongly trichroic
Weak to distinct brownish red-green-yellow
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.627-1.650
2.609-2.903
Crystal System
Orthorhombic
tetragonal
Birefringence
0.009-0.010
0.296
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Perception
Clarity
Healing
Physical healing
Physical healing
Qualities Associated
Self-Realization
Awareness
Andalusite Vs Rutile Fracture
Fracture is an important parameter when you compare Andalusite and Rutile Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Rutile 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 Andalusite is Uneven, Subconchoidal and Splintery. Rutile fracture is Uneven and Conchoidal.
Andalusite Vs Rutile Luster
A primary knowledge about Andalusite vs Rutile 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. Andalusite exhibits Vitreous and Greasy luster. Rutile, on other hand, exhibits Adamantine luster.