Petalite

Kyanite

Petalite Vs Kyanite

Petalite

Kyanite

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1 Astrology

1.1 Origin

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

Brazil, USA, Switzerland, Kenya, Mozambique, Russia, Nepal, India, Burma

1.2 Color

Colorless, gray, Yellow, White

Blue, Yellow, Colorless, White, gray, Green, Black

1.3 Streak

Colorless

White

1.4 For which Rashi?

Not Available

Aries, Libra, Taurus, Aries, Libra, Taurus, Aries, Libra, Taurus

1.5 Planet

Not Available

Jupiter

1.6 Element of Planets

Not Available

Water

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Receptive

1.9 Deities

Not Available

Endurance, Meditation, Love

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Love

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Brittle

2.2 Solubility

insoluble

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.403.53-3.65

1 7.18

2.5 Fracture

Subconchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

Splintery, Brittle, Metallic

2.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

2.7 Mohs Hardness

6-6.54-7

2 10

2.8 Chemical Composition

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

Not Available

3 Optical Properties

3.1 Luster

Vitreous, Pearly

3.2 Pleochroism

AbsentWalter Schumann

Trichroic

3.3 Dispersion

0.01NA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Not Available

3.5 Refractive Index

1.502-1.5231.71-1.74

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

monoclinic

Triclinic

3.8 Birefringence

0.012-0.016Not Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Color grading system

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

Petalite Vs Kyanite Fracture

Fracture is an important parameter when you compare Petalite and Kyanite Physical Properties. It is necessary to understand the significance of these properties, before you compare Petalite Vs Kyanite 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 Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references and Subconchoidal. Kyanite fracture is Brittle, Metallic and Splintery.

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Petalite Vs Kyanite Luster

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