Foitite

Vlasovite

Foitite Vs Vlasovite

Foitite

Vlasovite

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Astrology

Origin

Southern and central Africa

Russia

Color

Violet, Black

Colorless, Brownish

Streak

gray, White

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

Nearly insoluble in HCl and HNO₃

Durability

Specific Gravity

3.172.97

1 7.18

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Fracture

Conchoidal

Cleavage

None

Distinct on {010}

Mohs Hardness

2 10

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Chemical Composition

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous

Greasy, Vitreous, Pearly

Pleochroism

Strong: pale lavender dark blueAnthony et al

(x): colorless. (y): colorless. (z): colorless.

Dispersion

0.020.01

0.005 1

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Transparency

TranslucentAnthony et al, Translucent

Refractive Index

-99991.607

1 3.25

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Optic Character

Crystal System

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

monoclinic

Birefringence

-9999-9999

0 0.296

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Clarity

TranslucentAnthony et al

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Reproductive

Digestive

Psychology

Empowerment

Healing

Emotional healing

Physical healing

Qualities Associated

Emotional Healing

Protection

Foitite Vs Vlasovite Fracture

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

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Foitite Vs Vlasovite Luster

A primary knowledge about Foitite vs Vlasovite 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. Foitite exhibits Vitreous luster. Vlasovite, on other hand, exhibits Greasy, Vitreous and Pearly luster.