Amethyst

Biotite

Amethyst Vs Biotite

Amethyst

Biotite

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Astrology

Origin

USA, Zambia, Madagascar, India, Sri Lanka, Russia, Australia, Widespread; main sources are Brazil, Uruguay, Bolivia, Argentina, East Africa, Namibia, Brazil

Color

Violet, White, Colorless, Blue, Red, Green, Yellow, pink

Brown, Yellow, White, Greenish

Streak

White

White, gray

For which Rashi?

Pisces, Scorpio, Sagittarius

Planet

Element of Planets

Water

Energy

How to Wear?

Finger

Ring Metal

Deities

Diana

Not to wear with

Powers

Love, Courage

Birthstone

Planetary

Talisman

Physical Properties

Tenacity

Brittle

Solubility

insoluble in common solvents

Durability

Specific Gravity

2.652.7-3.3

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Uneven, Even

Cleavage

Indiscernible

Perfect on the {001}

Mohs Hardness

72.5-3.0

2 10

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Chemical Composition

SiO₂

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

Optical Properties

Luster

Vitreous

Vitreous, Pearly

Pleochroism

None

Strong

Dispersion

0.01-

0.005 1

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Transparency

Transparent, Transparent to translucent

Refractive Index

1.544-1.5531.565-1.625

1 3.25

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Optic Character

Crystal System

Trigonal

monoclinic

Birefringence

0.0090.03-0.07

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Reproductive

Supports reproductive health

Digestive

Supports digestive health

Psychology

Calming

Grounding

Healing

Emotional healing

Qualities Associated

Spirituality

Grounding

Amethyst Vs Biotite Fracture

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

Compare Semi Precious Gemstones

Amethyst Vs Cordierite Iolite

Amethyst Vs Dravite

Amethyst Vs Garnet

Amethyst Vs Biotite Luster

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