Fayalite

Achroite

Fayalite Vs Achroite

Fayalite

Achroite

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1 Astrology

1.1 Origin

Southern and central Africa

Afghanistan, Sri Lanka

1.2 Color

Yellow, Brown, Black, Black

Colorless, Blue

1.3 Streak

White

Not Available

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

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

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

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

4.3922.90-3.40

1 7.18

2.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

2.6 Cleavage

{010} moderate, {100} imperfect

Not Available

2.7 Mohs Hardness

6.5-77-7.5

2 10

2.8 Chemical Composition

Fe 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

3 Optical Properties

3.1 Luster

Vitreous, Resinous

Not Available

3.2 Pleochroism

Faint

Not Available

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent

3.5 Refractive Index

1.827-1.8791.614-1.666

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

Not Available

3.8 Birefringence

0.042-0.0510.014-0.040

0 0.296

3.9 Clarity

TransparentAnthony et al

Transparent

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

Fayalite Vs Achroite Fracture

Fracture is an important parameter when you compare Fayalite and Achroite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Achroite 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 Fayalite is Brittle, Conchoidal, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001). Achroite fracture is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven.

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Fayalite Vs Achroite Luster

A primary knowledge about Fayalite vs Achroite 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. Fayalite exhibits Resinous and Vitreous luster.