Howlite

Jet

Howlite Vs Jet

Howlite

Jet

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1 Astrology

1.1 Origin

Southern and central Africa

Spain

1.2 Color

Blue, Colorless, White

Black

1.3 Streak

White

Not Available

1.4 For which Rashi?

Gemini, Virgo, Gemini, Virgo, Gemini, Virgo

Capricorn

1.5 Planet

Moon

Saturn

1.6 Element of Planets

Earth

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Receptive

1.9 Deities

Quan Yin

Cybele

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Protection

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

2.45-2.581.19-1.35

1 7.18

2.5 Fracture

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

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

2.6 Cleavage

None

Not Available

2.7 Mohs Hardness

3-3.52.5-4

2 10

2.8 Chemical Composition

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

Not Available

3 Optical Properties

3.1 Luster

Vitreous

Waxy

3.2 Pleochroism

NilArthur Thomas

AbsentWalter Schumann

3.3 Dispersion

NANone

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

3.5 Refractive Index

1.583-1.6081.640-1.680

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

monoclinic

Amorphous

3.8 Birefringence

0.019Not Available

0 0.296

3.9 Clarity

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

Howlite Vs Jet Fracture

Fracture is an important parameter when you compare Howlite and Jet Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Jet 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. Jet fracture is ConchoidalWalter Schumann, ConchoidalWalter Schumann and Gemstones of the world (2001) More from other references.

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Howlite Vs Jet Luster

A primary knowledge about Howlite vs Jet 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. Jet, on other hand, exhibits Waxy luster.