Gahnite

Sard

Gahnite Vs Sard

Gahnite

Sard

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1 Astrology

1.1 Origin

Australia

Southern and central Africa

1.2 Color

Blue, Green, Greenish, Black

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

1.3 Streak

Grey, gray

Not Available

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 Energy

Not Available

1.8 How to Wear?

1.8.1 Finger

Not Available

1.8.2 Ring Metal

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.5 Solubility

Not Available

2.9 Durability

Not Available

2.16 Specific Gravity

4.00-4.622.58-2.63

1 7.18

5.7 Fracture

Conchoidal, Uneven

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

5.8 Cleavage

Indistinct parting on [111]

Not Available

5.9 Mohs Hardness

7.5-86.5-7

2 10

6.12 Chemical Composition

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

SiO 2Ulrich Henn and Claudio C.

7 Optical Properties

7.1 Luster

Vitreous

Waxy

7.2 Pleochroism

Not Available

AbsentWalter Schumann

7.3 Dispersion

NANone

0.007 1

10.5 Transparency

Gemmological Tables (2004) More from other references

Translucent

10.6 Refractive Index

1.790-1.8181.535-1.539

1 3.25

10.7 Optic Character

Not Available

10.8 Crystal System

cubic

Not Available

10.9 Birefringence

Not Available0.008-0.010

0 0.296

10.10 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Translucent

11 Benefits

11.1 Physical

11.1.1 Neurological

Not Available

11.1.2 Cardiovascular

Not Available

11.1.3 Respiratory

Not Available

11.1.4 Reproductive

Not Available

11.1.5 Digestive

Not Available

11.2 Psychology

Not Available

11.3 Healing

Not Available

11.4 Qualities Associated

Not Available

Gahnite Vs Sard Fracture

Fracture is an important parameter when you compare Gahnite and Sard Physical Properties. It is necessary to understand the significance of these properties, before you compare Gahnite 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 Gahnite is Conchoidal and Uneven. Sard fracture is ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas and Gemstones (2009).

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Gahnite Vs Sard Luster

A primary knowledge about Gahnite 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. Gahnite exhibits Vitreous luster. Sard, on other hand, exhibits Waxy luster.