Andalusite Vs Crocoite
Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Australia, Southern and central Africa
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Red, Yellow, orange
Streak
White
yellowish orange
Specific Gravity
3.05-3.21
5.90-6.10
Fracture
Uneven, Subconchoidal, Splintery
Conchoidal
Cleavage
Good on {110}, poor on {100}
{110} Distinct, {001} Indistinct, {100} Indistinct
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Greasy
Adamantine
Pleochroism
strongly trichroic
Distinctly trichroic
Transparency
Transparent, Translucent
Transparent
Refractive Index
1.627-1.650
2.31-2.66
Crystal System
Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/n
Birefringence
0.009-0.010
-9999
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
-
Cardiovascular
Supports heart health
Supports heart health
Respiratory
Excellent
Good
Psychology
Perception
Passion
Healing
Physical healing
Physical healing
Qualities Associated
Self-Realization
Passion
Andalusite Vs Crocoite Fracture
Fracture is an important parameter when you compare Andalusite and Crocoite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Crocoite 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. Crocoite fracture is Conchoidal.
Andalusite Vs Crocoite Luster
A primary knowledge about Andalusite vs Crocoite 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. Crocoite, on other hand, exhibits Adamantine luster.