Origin
Southern and central Africa, violet, blue, violet, blue
Southern and central Africa, green
Color
Blue, Violet, Brown, White, Blue, Brown, Violet, Greenish, pink
Green
For which Rashi?
Leo, Sagittarius, Leo, Sagittarius, Leo, Sagittarius
Capricorn, Scorpio, Capricorn, Scorpio, Capricorn, Scorpio
Element of Planets
Water
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Receptive
Receptive
Not to wear with
Not Available
Not Available
Powers
Healing
Protection
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.26-3.41
3.25-4.10
Fracture
Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references
Conchoidal, Conchoidal, Gemstones (2009), Uneven
Cleavage
Distinct on {100}, poor on {110}; parting on {001}
Perfect on { 2 01} fair on {010}
Mohs Hardness
7-8.5
3.5-4
Chemical Composition
AlAl6O3BSi3O18
Cu2CO3(OH)2
Luster
Vitreous
Adamantine, Vitreous, Silky, Fibrous
Pleochroism
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
Not Available
Transparency
Translucent, Translucent to opaque
Opaque
Refractive Index
1.669-1.723
1.655-1.909
Optic Character
Not Available
Not Available
Crystal System
Orthorhombic
monoclinic
Birefringence
0.011-0.037
0.254
Clarity
Translucent
Gemmological Tables (2004) More from other references
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Dumortierite Vs Malachite Fracture
Fracture is an important parameter when you compare Dumortierite and Malachite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dumortierite Vs Malachite 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 Dumortierite is ConchoidalWalter Schumann, Fibrous and Gemstones of the world (2001) More from other references. Malachite fracture is Conchoidal, Conchoidal, Gemstones (2009) and Uneven.
Dumortierite Vs Malachite Luster
A primary knowledge about Dumortierite vs Malachite 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. Dumortierite exhibits Vitreous luster. Malachite, on other hand, exhibits Adamantine, Fibrous, Silky and Vitreous luster.