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Forsterite
Forsterite

Alexandrite
Alexandrite



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Forsterite
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Alexandrite

Forsterite Vs Alexandrite

Astrology

Origin

Southern and central Africa
Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Origins: Russia

Color

Colorless, Green, Yellow, White
Green

Streak

White
-

For which Rashi?

-
Scorpio

Planet

-
Venus

Element of Planets

-
Earth

Energy

-
-

How to Wear?

Finger

-

Ring Metal

-
-

Deities

-
-

Not to wear with

-
-

Powers

-
Love

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.23-3.263.69-3.81
1 7.18
👆🏻

Fracture

Conchoidal
-

Cleavage

Perfect on {010} imperfect on {100}
1,1 ; 3,2.

Mohs Hardness

6.5-78.5
2 10
👆🏻

Chemical Composition

Mg 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006)
BeAl 2 O 4

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

colorless.
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Transparent to nearly opaque

Refractive Index

1.635-1.6711.739-1.770
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.033-0.0420.007-0.010
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

-
Enhances mental clarity and focus

Cardiovascular

-
Aids in grounding and protection

Respiratory

Good
Excellent

Reproductive

Supports healthy digestion
Supports reproductive health

Digestive

-
-

Psychology

Peace
Transformation

Healing

Physical healing
Emotional healing

Qualities Associated

Peace
Transformation

Forsterite Vs Alexandrite Fracture

Fracture is an important parameter when you compare Forsterite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Forsterite Vs Alexandrite 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.

Forsterite Vs Alexandrite Luster

A primary knowledge about Forsterite vs Alexandrite 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. Alexandrite, on other hand, exhibits Vitreous luster.