Jet

Petalite

Jet Vs Petalite

Jet

Petalite

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Astrology

Origin

Spain

Canada, USA, Brazil, Italy, Mozambique, Zimbabwe, Russia, Burma, Australia

Color

Black

Colorless, gray, Yellow, White

Streak

Colorless

For which Rashi?

Capricorn

Planet

Saturn

Element of Planets

Earth

Energy

How to Wear?

Finger

Ring Metal

Deities

Cybele

Not to wear with

Powers

Protection

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

insoluble

Durability

Specific Gravity

1.19-1.352.40

1 7.18

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Fracture

ConchoidalWalter Schumann

Subconchoidal, ConchoidalWalter Schumann, Conchoidal

Cleavage

None

Perfect on {001}, poor on {201} with 38.5° angle between the two

Mohs Hardness

2.5-46-6.5

2 10

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Chemical Composition

LiAlSi 4O 10Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Waxy

Vitreous, Pearly

Pleochroism

Dispersion

0.010.01

0.005 1

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Transparency

Refractive Index

1.640-1.6801.502-1.523

1 3.25

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Optic Character

Crystal System

monoclinic

Birefringence

-99990.012-0.016

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Digestive

Psychology

Protection

Calmness

Healing

Emotional healing

Qualities Associated

Protection

Peace

Jet Vs Petalite Fracture

Fracture is an important parameter when you compare Jet and Petalite Physical Properties. It is necessary to understand the significance of these properties, before you compare Jet Vs Petalite 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 Jet is ConchoidalWalter Schumann. Petalite fracture is Subconchoidal, ConchoidalWalter Schumann and Conchoidal.

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Jet Vs Petalite Luster

A primary knowledge about Jet vs Petalite 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. Jet exhibits Waxy luster. Petalite, on other hand, exhibits Vitreous and Pearly luster.