Origin
Canada, Southern and central Africa, Italy, Australia, India
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Color
Violet, Brownish, Yellow, Reddish, Pale pink
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Planet
Mercury, Jupiter
Venus
Element of Planets
Water
-
Specific Gravity
2.69-2.79
3.05-3.21
Fracture
Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
Poor on {0001}
Good on {110}, poor on {100}
Mohs Hardness
5.5-6.5
7.5
Chemical Composition
KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous
Vitreous, Greasy
Pleochroism
Weak
strongly trichroic
Transparency
Translucent
Transparent, Translucent
Refractive Index
1.607-1.612
1.627-1.650
Crystal System
Hexagonal
Orthorhombic
Birefringence
0.003
0.009-0.010
Clarity
Translucent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Excellent
Psychology
Spirituality
Perception
Healing
Emotional healing
Physical healing
Qualities Associated
Spiritual Protection
Self-Realization
Sugilite Vs Andalusite Fracture
Fracture is an important parameter when you compare Sugilite and Andalusite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sugilite Vs Andalusite 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 Sugilite is Conchoidal. Andalusite fracture is Uneven, Subconchoidal and Splintery.
Sugilite Vs Andalusite Luster
A primary knowledge about Sugilite vs Andalusite 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. Sugilite exhibits Vitreous luster. Andalusite, on other hand, exhibits Vitreous and Greasy luster.