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Prehnite
Prehnite

Tantalite
Tantalite



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Prehnite
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Tantalite

Prehnite Vs Tantalite

Astrology

Origin

Australia, Southern and central Africa, France
Australia, Brazil, Canada, Colombia, Madagascar, Zimbabwe

Color

Green, Colorless, gray, Yellow, White
Brown

Streak

Colorless
Brownish, Red, Black

For which Rashi?

Libra
-

Planet

Venus
-

Element of Planets

Earth
-

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

Freya
-

Not to wear with

-
-

Powers

-
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.80-2.955.2
1 7.18
👆🏻

Fracture

Uneven
Subconchoidal, Conchoidal

Cleavage

Distinct on [001]
Good in one direction

Mohs Hardness

6-6.56-6.5
2 10
👆🏻

Chemical Composition

Ca2Al2Si3O12(OH)
(Fe,Mn)Ta 2O 6Walter Schumann , Gemstones of the world (2001) More from other references

Optical Properties

Luster

Vitreous
Resinous

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Translucent
TransparentWalter Schumann

Refractive Index

1.611-1.6732.190-2.457
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.021-0.0330.083
0 0.296
👆🏻

Clarity

TranslucentHerve Nicolas Lazzarelli
TransparentWalter Schumann

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

-
-

Respiratory

Good
-

Reproductive

-
-

Digestive

-
-

Psychology

Harmony
Strength

Healing

Physical healing
Emotional healing

Qualities Associated

Harmony
Balance

Prehnite Vs Tantalite Fracture

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

Prehnite Vs Tantalite Luster

A primary knowledge about Prehnite vs Tantalite 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. Prehnite exhibits Vitreous luster. Tantalite, on other hand, exhibits Resinous luster.