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Forsterite
Forsterite

Mottramite
Mottramite



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X
Forsterite
X
Mottramite

Forsterite Vs Mottramite

Astrology

Origin

Southern and central Africa
-

Color

Colorless, Green, Yellow, White
Brown, Green, Yellow

Streak

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

3.23-3.265.9
1 7.18
👆🏻

Fracture

Conchoidal
Sub-Conchoidal

Cleavage

Perfect on {010} imperfect on {100}
None observed

Mohs Hardness

6.5-73
2 10
👆🏻

Chemical Composition

Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
PbCu(VO4)(OH)

Optical Properties

Luster

Vitreous
Greasy

Pleochroism

colorless.
Visible X=Y= canary yellow to greenish yellow

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.635-1.6712.170
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.033-0.0420.150
0 0.296
👆🏻

Clarity

Transparent
-

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

Good
Good

Reproductive

Supports healthy digestion
-

Digestive

-
-

Psychology

Peace
Confidence

Healing

Physical healing
Emotional healing

Qualities Associated

Peace
Transformation

Forsterite Vs Mottramite Fracture

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

Forsterite Vs Mottramite Luster

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