Foitite

Mottramite

Foitite Vs Mottramite

Foitite

Mottramite

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Astrology

Origin

Southern and central Africa

Color

Violet, Black

Brown, Green, Yellow

Streak

gray, White

Green, Brownish

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

Soluble

Durability

Specific Gravity

3.175.9

1 7.18

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Fracture

Sub-Conchoidal

Cleavage

None

None observed

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)

PbCu(VO4)(OH)

Optical Properties

Luster

Vitreous

Greasy

Pleochroism

Strong: pale lavender dark blueAnthony et al

Visible X=Y= canary yellow to greenish yellow

Dispersion

0.020.04

0.005 1

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Transparency

TranslucentAnthony et al, Translucent

Refractive Index

-99992.170

1 3.25

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Optic Character

Crystal System

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

Orthorhombic

Birefringence

-99990.150

0 0.296

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Clarity

TranslucentAnthony et al

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Empowerment

Confidence

Healing

Emotional healing

Qualities Associated

Emotional Healing

Transformation

Foitite Vs Mottramite Fracture

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

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Foitite Vs Mottramite Luster

A primary knowledge about Foitite vs Mottramite 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. Mottramite, on other hand, exhibits Greasy luster.