Powellite

Onyx

Powellite Vs Onyx

Powellite

Onyx

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1 Astrology

1.1 Origin

India

Not Available

1.2 Color

Yellow, Greenish, Blue, Brown, Green, gray

White

1.3 Streak

Yellow

Not Available

1.4 For which Rashi?

Not Available

Capricorn

1.5 Planet

Not Available

Saturn

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Projective

1.9 Deities

Not Available

Mars

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

Capricorn

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

4.232.55-2.70

1 7.18

2.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Not Available

2.6 Cleavage

{111} Distinct

Indiscernible

2.7 Mohs Hardness

3.5-46.5-7

2 10

2.8 Chemical Composition

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO₂

3 Optical Properties

3.1 Luster

Greasy, Subadamantine

Vitreous

3.2 Pleochroism

In deeply colored specimens: blue greenAnthony et al

Not Available

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent

Translucent, Opaque, Translucent to opaque

3.5 Refractive Index

1.974-1.9841.530-1.543

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

Trigonal

3.8 Birefringence

Not AvailableNot Available

0 0.296

3.9 Clarity

Transparent

OpaqueHerve Nicolas Lazzarelli

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

Powellite Vs Onyx Fracture

Fracture is an important parameter when you compare Powellite and Onyx Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Onyx 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 Powellite is Brittle, Conchoidal, Handbook of mineralogy (2001), Handbook of mineralogy (2001), UnevenAnthony et al and UnevenAnthony et al.

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Powellite Vs Onyx Luster

A primary knowledge about Powellite vs Onyx 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. Powellite exhibits Greasy and Subadamantine luster. Onyx, on other hand, exhibits Vitreous luster.