Onyx

Howlite

Onyx Vs Howlite

Onyx

Howlite

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1 Astrology

1.1 Origin

Not Available

Southern and central Africa

1.2 Color

White

Blue, Colorless, White

1.3 Streak

Not Available

White

1.4 For which Rashi?

Capricorn

Gemini, Virgo, Gemini, Virgo, Gemini, Virgo

1.5 Planet

Saturn

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

Projective

Not Available

1.9 Deities

Mars

Quan Yin

1.10 Not to wear with

Not Available

1.11 Powers

Protection

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Capricorn

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.55-2.702.45-2.58

1 7.18

2.5 Fracture

Not Available

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

2.6 Cleavage

Indiscernible

None

2.7 Mohs Hardness

6.5-73-3.5

2 10

2.8 Chemical Composition

SiO₂

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

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

NilArthur Thomas

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Translucent, Opaque, Translucent to opaque

Gemmological Tables (2004) More from other references

3.5 Refractive Index

1.530-1.5431.583-1.608

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

monoclinic

3.8 Birefringence

Not Available0.019

0 0.296

3.9 Clarity

OpaqueHerve Nicolas Lazzarelli

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

Onyx Vs Howlite Fracture

Fracture is an important parameter when you compare Onyx and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Onyx 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. Howlite fracture is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.

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Onyx Vs Howlite Luster

A primary knowledge about Onyx 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. Onyx exhibits Vitreous luster. Howlite, on other hand, exhibits Vitreous luster.