Howlite Vs Lazulite
Origin
Southern and central Africa
Brazil, Southern and central Africa
Color
Blue, Colorless, White
Blue, Green, Black
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Gemini, Sagittarius, Gemini, Sagittarius, Gemini, Sagittarius
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Projective
Not to wear with
Not Available
Not Available
Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
3.04-3.17
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, Gemstones of the world (2001) More from other references
Cleavage
None
{001} Indistinct, {???} Indistinct
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Luster
Vitreous
Not Available
Pleochroism
NilArthur Thomas
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.583-1.608
1.604-1.646
Optic Character
Not Available
Not Available
Crystal System
monoclinic
monoclinic
Birefringence
0.019
0.031-0.036
Clarity
Gemmological Tables (2004) More from other references
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Howlite Vs Lazulite Fracture
Fracture is an important parameter when you compare Howlite and Lazulite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Lazulite 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 Howlite is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas. Lazulite fracture is Gemstones of the world (2001) More from other references, Uneven and Uneven.
Howlite Vs Lazulite Luster
A primary knowledge about Howlite vs Lazulite 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. Howlite exhibits Vitreous luster.