Sphalerite

Howlite

Sphalerite Vs Howlite

Sphalerite

Howlite

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1 Astrology

1.1 Origin

Mexico, USA, Spain

Southern and central Africa

1.2 Color

Green, Brown, Yellow, Red, Black

Blue, Colorless, White

1.3 Streak

Brownish, White

White

1.4 For which Rashi?

Not Available

Gemini, Virgo, Gemini, Virgo, Gemini, Virgo

1.5 Planet

Not Available

Moon

1.6 Element of Planets

Not Available

Earth

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

Quan Yin

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.95-4.102.45-2.58

1 7.18

2.5 Fracture

UnevenWalter Schumann, Gemstones of the world (2001) More from other references, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Uneven

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal

2.6 Cleavage

{110} Perfect, {110} Perfect, {110} Perfect

None

2.7 Mohs Hardness

3.5-43-3.5

2 10

2.8 Chemical Composition

(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

3 Optical Properties

3.1 Luster

Adamantine

Vitreous

3.2 Pleochroism

AbsentWalter Schumann

NilArthur Thomas

3.3 Dispersion

0.16NA

0.007 1

3.4 Transparency

Transparent, Translucent

Gemmological Tables (2004) More from other references

3.5 Refractive Index

2.368-2.3711.583-1.608

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Isometric

monoclinic

3.8 Birefringence

Not Available0.019

0 0.296

3.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Sphalerite Vs Howlite Fracture

Fracture is an important parameter when you compare Sphalerite and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Sphalerite Vs Howlite 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 Sphalerite is Gemstones of the world (2001) More from other references, Gemstones of the world (2001) More from other references, Uneven, UnevenWalter Schumann and UnevenWalter Schumann. Howlite fracture is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.

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Sphalerite Vs Howlite Luster

A primary knowledge about Sphalerite vs Howlite 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. Sphalerite exhibits Adamantine luster. Howlite, on other hand, exhibits Vitreous luster.