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Bytownite
Bytownite

Sard
Sard



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Bytownite
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Sard

Bytownite Vs Sard

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Astrology

Origin

Canada, Southern and central Africa, Australia
Southern and central Africa

Color

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

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

2.72-2.752.58-2.63
1 7.18
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Fracture

Uneven
Conchoidal

Cleavage

Perfect on [001], good on [010], imperfect on [110]
None

Mohs Hardness

6-6.56.5-7
2 10
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Chemical Composition

Ca(70-90%)Na(30-10%)(Al,Si)AlSi 2O 8Michael O’Donoghue , Gems, Sixth Edition (2006)
SiO 2Ulrich Henn and Claudio C.

Optical Properties

Luster

Vitreous, Pearly
Waxy

Pleochroism

colorless.
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
Translucent

Refractive Index

1.561-1.5831.535-1.539
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
-

Birefringence

0.010-0.0110.008-0.010
0 0.296
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Clarity

Transparent
Translucent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Poor
-

Reproductive

-
-

Digestive

-
-

Psychology

Clarity
Strength

Healing

Emotional healing
Emotional healing

Qualities Associated

Clarity
Protection

Bytownite Vs Sard Fracture

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

Bytownite Vs Sard Luster

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