Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Russia
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Pale pink, Red, White, pink, Blue, Green
Specific Gravity
3.05-3.21
2.30-2.60
Fracture
Uneven, Subconchoidal, Splintery
Uneven, Conchoidal
Cleavage
Good on {110}, poor on {100}
{111} Imperfect
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Na 4AlBeSi 4O 12ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
-
Pleochroism
strongly trichroic
ModerateArthur Thomas
Transparency
Transparent, Translucent
OpaqueHerve Nicolas Lazzarelli
Refractive Index
1.627-1.650
1.494-1.504
Crystal System
Orthorhombic
tetragonal
Birefringence
0.009-0.010
0.008
Clarity
Transparent
OpaqueHerve Nicolas Lazzarelli
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Emotional Healing
Andalusite Vs Tugtupite Fracture
Fracture is an important parameter when you compare Andalusite and Tugtupite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Tugtupite 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. Tugtupite fracture is Uneven and Conchoidal.
Andalusite Vs Tugtupite Luster
A primary knowledge about Andalusite vs Tugtupite 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.