Grandidierite

Bytownite

Grandidierite Vs Bytownite

Grandidierite

Bytownite

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Astrology

Origin

Madagascar

Canada, Southern and central Africa, Australia

Color

Green

Colorless, White, gray

Streak

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

2.85-3.002.72-2.75

1 7.18

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Fracture

Uneven

Cleavage

Perfect

Perfect on [001], good on [010], imperfect on [110]

Mohs Hardness

7.56-6.5

2 10

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Chemical Composition

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

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous, Pearly

Pleochroism

visible

colorless.

Dispersion

0.040.01

0.005 1

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Transparency

Transparent

Refractive Index

1.578-1.6391.561-1.583

1 3.25

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Optic Character

Crystal System

Orthorhombic

Triclinic

Birefringence

0.037-0.0390.010-0.011

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Poor

Reproductive

Digestive

Psychology

Wisdom

Clarity

Healing

Physical healing

Emotional healing

Qualities Associated

Harmony

Clarity

Grandidierite Vs Bytownite Fracture

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

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Grandidierite Vs Bytownite Luster

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