Fayalite

Lazulite

Fayalite Vs Lazulite

Fayalite

Lazulite

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1 Astrology

1.1 Origin

Southern and central Africa

Brazil, Southern and central Africa

1.2 Color

Yellow, Brown, Black, Black

Blue, Green, Black

1.3 Streak

White

1.4 For which Rashi?

Not Available

Gemini, Sagittarius, Gemini, Sagittarius, Gemini, Sagittarius

1.5 Planet

Not Available

Jupiter

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

Gia

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

4.3923.04-3.17

1 7.18

2.5 Fracture

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

Uneven, Uneven, Gemstones of the world (2001) More from other references

2.6 Cleavage

{010} moderate, {100} imperfect

{001} Indistinct, {???} Indistinct

2.7 Mohs Hardness

6.5-75.5

2 10

2.8 Chemical Composition

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

(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references

3 Optical Properties

3.1 Luster

Vitreous, Resinous

Not Available

3.2 Pleochroism

Faint

Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli

3.3 Dispersion

NA0.01

0.007 1

3.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Transparent, Translucent

3.5 Refractive Index

1.827-1.8791.604-1.646

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

monoclinic

3.8 Birefringence

0.042-0.0510.031-0.036

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 Lazulite Fracture

Fracture is an important parameter when you compare Fayalite and Lazulite Physical Properties. It is necessary to understand the significance of these properties, before you compare Fayalite Vs Lazulite 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). Lazulite fracture is Gemstones of the world (2001) More from other references, Uneven and Uneven.

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Fayalite Vs Lazulite Luster

A primary knowledge about Fayalite vs Lazulite 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.