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Grandidierite
Grandidierite

Mellite
Mellite



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Grandidierite
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Mellite

Grandidierite Vs Mellite

Astrology

Origin

Madagascar
Southern and central Africa

Color

Green
Brown, Brownish, White, Colorless, Yellow

Streak

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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.85-3.001.58-1.60
1 7.18
👆🏻

Fracture

Uneven
Conchoidal

Cleavage

Perfect
{011} Imperfect

Mohs Hardness

7.52
2 10
👆🏻

Chemical Composition

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

visible
Weak: yellowish brown yellowAnthony et al

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.578-1.6391.509-1.541
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.037-0.0390.030
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
-

Respiratory

-
Good

Reproductive

-
-

Digestive

-
-

Psychology

Wisdom
Happiness

Healing

Physical healing
Emotional healing

Qualities Associated

Harmony
Abundance

Grandidierite Vs Mellite Fracture

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

Grandidierite Vs Mellite Luster

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