Dravite

Mottramite

Dravite Vs Mottramite

Dravite

Mottramite

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Astrology

Origin

Southern and central Africa

Color

White, Colorless, Blue, Red, Green, Yellow, Violet, Black

Brown, Green, Yellow

Streak

Colorless

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

3.03-3.185.9

1 7.18

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Fracture

Uneven, Irregular, Conchoidal

Sub-Conchoidal

Cleavage

{???} Indistinct

None observed

Mohs Hardness

7-7.53

2 10

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Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

PbCu(VO4)(OH)

Optical Properties

Luster

Vitreous

Greasy

Pleochroism

Very strong: pale yellow colorless

Visible X=Y= canary yellow to greenish yellow

Dispersion

0.020.04

0.005 1

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Transparency

Transparent

Refractive Index

1.614-1.6662.170

1 3.25

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Optic Character

Crystal System

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

Orthorhombic

Birefringence

0.014-0.0320.150

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Self-acceptance

Confidence

Healing

Emotional healing

Qualities Associated

Self-Exploration

Transformation

Dravite Vs Mottramite Fracture

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

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Dravite Vs Mottramite Luster

A primary knowledge about Dravite 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. Dravite exhibits Vitreous luster. Mottramite, on other hand, exhibits Greasy luster.