Petalite

Austinite

Petalite Vs Austinite

Petalite

Austinite

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Astrology

Origin

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

USA

Color

Colorless, gray, Yellow, White

Colorless, White, Green, Brown

Streak

Colorless

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

insoluble

Easily soluble in cold dilute HCl

Durability

Specific Gravity

2.404.12

1 7.18

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Fracture

Subconchoidal, ConchoidalWalter Schumann, Conchoidal

Uneven

Cleavage

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

Good in two directions parallel to the prism faces {110}

Mohs Hardness

6-6.54-4.5

2 10

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Chemical Composition

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

CaZn(AsO4)(OH)

Optical Properties

Luster

Vitreous, Pearly

Subadamantine, Silky

Pleochroism

Dispersion

0.010.03

0.005 1

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Transparency

Refractive Index

1.502-1.5231.759

1 3.25

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Optic Character

Crystal System

monoclinic

Orthorhombic

Birefringence

0.012-0.0160.024

0 0.296

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Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Calmness

Compassion

Healing

Emotional healing

Qualities Associated

Peace

Transformation

Petalite Vs Austinite Fracture

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

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Petalite Vs Austinite Luster

A primary knowledge about Petalite vs Austinite 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. Petalite exhibits Vitreous and Pearly luster. Austinite, on other hand, exhibits Subadamantine and Silky luster.