Powellite

Sellaite

Powellite Vs Sellaite

Powellite

Sellaite

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Astrology

Origin

India

Brazil

Color

Yellow, Greenish, Blue, Brown, Green, gray

Colorless, White

Streak

Yellow

White

For which Rashi?

Planet

Element of Planets

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

4.233.14-3.16

1 7.18

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Fracture

Conchoidal

Cleavage

{111} Distinct

Perfect on {010} and {110}

Mohs Hardness

3.5-45-5.5

2 10

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Chemical Composition

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

MgF 2Ulrich Henn and Claudio C.

Optical Properties

Luster

Greasy, Subadamantine

Vitreous

Pleochroism

In deeply colored specimens: blue greenAnthony et al

Dispersion

0.030.03

0.005 1

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Transparency

Transparent

Refractive Index

1.974-1.9841.378-1.390

1 3.25

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Optic Character

Crystal System

tetragonal

Birefringence

-99990.012

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Healing

Emotional healing

Qualities Associated

Vitality

Emotional Healing

Powellite Vs Sellaite Fracture

Fracture is an important parameter when you compare Powellite and Sellaite Physical Properties. It is necessary to understand the significance of these properties, before you compare Powellite Vs Sellaite 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 Conchoidal. Sellaite fracture is Conchoidal.

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Powellite Vs Sellaite Luster

A primary knowledge about Powellite vs Sellaite 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. Sellaite, on other hand, exhibits Vitreous luster.