Biotite

Cordierite

Biotite Vs Cordierite

Biotite

Cordierite

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Astrology

Origin

Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania

Color

Brown, Yellow, White, Greenish

Blue, Violet, Greenish, Brown, Colorless, Yellow, gray

Streak

White, gray

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

2.7-3.32.57-2.66

1 7.18

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Fracture

Uneven, Even

Subconchoidal, Conchoidal

Cleavage

Perfect on the {001}

Fair on {100}, poor on {001} and {010}

Mohs Hardness

2.5-3.07-7.5

2 10

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Chemical Composition

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

Mg2Al4Si5O18

Optical Properties

Luster

Vitreous, Pearly

Greasy, Vitreous

Pleochroism

Strong

X = pale yellow

Dispersion

-0.01

0.005 1

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Transparency

Refractive Index

1.565-1.625-9999

1 3.25

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Optic Character

Crystal System

monoclinic

Orthorhombic

Birefringence

0.03-0.07-9999

0 0.296

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Clarity

Benefits

Physical

Neurological

Enhances mental clarity and focus

Supports healthy digestion

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Grounding

Intuition

Healing

Emotional healing

Qualities Associated

Grounding

Psychic Abilities

Biotite Vs Cordierite Fracture

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

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Biotite Vs Cordierite Luster

A primary knowledge about Biotite vs Cordierite 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. Cordierite, on other hand, exhibits Greasy and Vitreous luster.