Mottramite

Grandidierite

Mottramite Vs Grandidierite

Mottramite

Grandidierite

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Astrology

Origin

Madagascar

Color

Brown, Green, Yellow

Green

Streak

Green, Brownish

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

Soluble

Durability

Specific Gravity

5.92.85-3.00

1 7.18

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Fracture

Sub-Conchoidal

Uneven

Cleavage

None observed

Perfect

Mohs Hardness

37.5

2 10

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Chemical Composition

PbCu(VO4)(OH)

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Optical Properties

Luster

Greasy

Vitreous, Pearly

Pleochroism

Visible X=Y= canary yellow to greenish yellow

visible

Dispersion

0.040.04

0.005 1

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Transparency

Refractive Index

2.1701.578-1.639

1 3.25

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Optic Character

Crystal System

Orthorhombic

Birefringence

0.1500.037-0.039

0 0.296

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Clarity

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Confidence

Wisdom

Healing

Emotional healing

Physical healing

Qualities Associated

Transformation

Harmony

Mottramite Vs Grandidierite Fracture

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

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Mottramite Vs Grandidierite Luster

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