Amethyst

Grandidierite

Amethyst Vs Grandidierite

Amethyst

Grandidierite

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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

Madagascar

Color

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

Green

Streak

White

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

Solubility

insoluble in common solvents

Durability

Specific Gravity

2.652.85-3.00

1 7.18

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Fracture

Conchoidal, ConchoidalWalter Schumann

Uneven

Cleavage

Indiscernible

Perfect

Mohs Hardness

77.5

2 10

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Chemical Composition

SiO₂

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Optical Properties

Luster

Vitreous

Vitreous, Pearly

Pleochroism

None

visible

Dispersion

0.010.04

0.005 1

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Transparency

Transparent, Transparent to translucent

Refractive Index

1.544-1.5531.578-1.639

1 3.25

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Optic Character

Crystal System

Trigonal

Orthorhombic

Birefringence

0.0090.037-0.039

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

Wisdom

Healing

Emotional healing

Physical healing

Qualities Associated

Spirituality

Harmony

Amethyst Vs Grandidierite Fracture

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

Compare Semi Precious Gemstones

Amethyst Vs Cordierite Iolite

Amethyst Vs Dravite

Amethyst Vs Garnet

Amethyst Vs Grandidierite Luster

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