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