Origin
Afghanistan, Brazil, Madagascar, Mozambique, Southern and central Africa, Russia, Sri Lanka
USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Origins: USA, Germany, Japan
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
Yellow, Brown, Colorless, White, gray, Brownish
Specific Gravity
3.01-3.06
2.97-3.03
Fracture
Conchoidal
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Indiscernible
{001} Poor
Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.
CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
-
Vitreous, Greasy
Pleochroism
Strong: dark red pinkish-redHerve Nicolas Lazzarelli
Weak: pale yellow yellow
Transparency
Transparent, Translucent
-
Refractive Index
1.614-1.666
1.627-1.639
Optic Character
-
Biaxial/+
Crystal System
-
Orthorhombic
Birefringence
0.014-0.040
0.006
Clarity
Transparent
TransparentUlrich Henn and Claudio C. Milisenda
Neurological
-
Enhances mental clarity and focus
Cardiovascular
-
Supports heart health
Respiratory
Excellent
Good
Psychology
Passion
Spiritual Awareness
Healing
Emotional healing
Emotional healing
Qualities Associated
Passion
Spiritual Awakening
Rubellite Vs Danburite Fracture
Fracture is an important parameter when you compare Rubellite and Danburite Physical Properties. It is necessary to understand the significance of these properties, before you compare Rubellite Vs Danburite 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 Rubellite is Conchoidal. Danburite fracture is Uneven, ConchoidalWalter Schumann and Conchoidal.
Rubellite Vs Danburite Luster
A primary knowledge about Rubellite vs Danburite 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. Danburite, on other hand, exhibits Vitreous and Greasy luster.