Ettringite

Gahnospinel

Ettringite Vs Gahnospinel

Ettringite

Gahnospinel

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1 Astrology

1.1 Origin

Southern and central Africa

Sri Lanka

1.2 Color

Colorless, Yellow, White, Colorless, White

Blue

1.3 Streak

White

Not Available

1.4 For which Rashi?

Not Available

Sagittarius, Scorpio

1.5 Planet

Not Available

Pluto

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

Projective

1.9 Deities

Not Available

Hephaestus

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Money

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Partially soluble in water

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

1.773.65-4.55

1 7.18

2.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

Perfect on {10 1 0}

None, but may exhibit slight parting

2.7 Mohs Hardness

2-2.57.5-8

2 10

2.8 Chemical Composition

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

AbsentWalter Schumann

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent, Translucent

Gemmological Tables (2004)

3.5 Refractive Index

1.470-1.4911.735-1.790

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal

Isometric

3.8 Birefringence

0.021Not Available

0 0.296

3.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Ettringite Vs Gahnospinel Fracture

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

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Ettringite Vs Gahnospinel Luster

A primary knowledge about Ettringite vs Gahnospinel 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. Ettringite exhibits Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.