Biotite

Sugilite

Biotite Vs Sugilite

Biotite

Sugilite

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Astrology

Origin

Canada, Southern and central Africa, Italy, Australia, India

Color

Brown, Yellow, White, Greenish

Violet, Brownish, Yellow, Reddish, Pale pink

Streak

White, gray

White

For which Rashi?

Virgo

Planet

Mercury, Jupiter

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Not to wear with

Powers

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

2.7-3.32.69-2.79

1 7.18

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Fracture

Uneven, Even

Conchoidal

Cleavage

Perfect on the {001}

Poor on {0001}

Mohs Hardness

2.5-3.05.5-6.5

2 10

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Chemical Composition

K(Mg,Fe++)3[AlSi3O10(OH,F)2

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Optical Properties

Luster

Vitreous, Pearly

Vitreous

Pleochroism

Strong

Weak

Dispersion

-0.02

0.005 1

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Transparency

Translucent

Refractive Index

1.565-1.6251.607-1.612

1 3.25

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Optic Character

Crystal System

monoclinic

Hexagonal

Birefringence

0.03-0.070.003

0 0.296

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Clarity

Translucent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Grounding

Spirituality

Healing

Emotional healing

Qualities Associated

Grounding

Spiritual Protection

Biotite Vs Sugilite Fracture

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

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Biotite Vs Sugilite Luster

A primary knowledge about Biotite vs Sugilite 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. Biotite exhibits Vitreous and Pearly luster. Sugilite, on other hand, exhibits Vitreous luster.