Howlite Vs Chrome Tourmaline
Origin
Southern and central Africa
Not Available
Color
Blue, Colorless, White
White, Colorless, Blue, Red, Green, Yellow, Violet
Streak
White
Not Available
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Libra
Element of Planets
Earth
Earth
Energy
Not Available
Projective
Finger
Not Available
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Ring Metal
Not Available
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Deities
Quan Yin
Venus, Mars
Not to wear with
Not Available
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Powers
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Love, Courage
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
2.85-3.35
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
ConchoidalArthur Thomas, Gemstones (2009)
Mohs Hardness
3-3.5
7-7.5
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Tourmaline is a series of several different minerals with unique chemical formulas.
Pleochroism
NilArthur Thomas
Not Available
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
Refractive Index
1.583-1.608
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
monoclinic
Hexagonal
Birefringence
0.019
0.014-0.040
Clarity
Gemmological Tables (2004) More from other references
Transparent
Neurological
Not Available
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Cardiovascular
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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 Chrome Tourmaline Fracture
Fracture is an important parameter when you compare Howlite and Chrome Tourmaline Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Chrome Tourmaline 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 UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle and Conchoidal. Chrome Tourmaline fracture is ConchoidalArthur Thomas and Gemstones (2009).
Howlite Vs Chrome Tourmaline Luster
A primary knowledge about Howlite vs Chrome Tourmaline 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. Chrome Tourmaline, on other hand, exhibits Vitreous luster.
