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Vivianite
Vivianite

Prehnite
Prehnite



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Vivianite
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Prehnite

Vivianite Vs Prehnite

Astrology

Origin

Southern and central Africa
Australia, Southern and central Africa, France

Color

Blue, Green, Colorless
Green, Colorless, gray, Yellow, White

Streak

White
Colorless

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

2.64-2.702.80-2.95
1 7.18
👆🏻

Fracture

-
Uneven

Cleavage

{010} Perfect
Distinct on [001]

Mohs Hardness

-99996-6.5
2 10
👆🏻

Chemical Composition

Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Ca2Al2Si3O12(OH)

Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Translucent

Refractive Index

1.560-1.6401.611-1.673
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.054-0.0750.021-0.033
0 0.296
👆🏻

Clarity

Transparent
TranslucentHerve Nicolas Lazzarelli

Benefits

Physical

Neurological

Enhances mental clarity and focus
Enhances mental clarity and focus

Cardiovascular

-
-

Respiratory

Good
Good

Reproductive

-
-

Digestive

-
-

Psychology

Hope
Harmony

Healing

Emotional healing
Physical healing

Qualities Associated

Transformation
Harmony

Vivianite Vs Prehnite Fracture

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

Vivianite Vs Prehnite Luster

A primary knowledge about Vivianite vs Prehnite 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. Vivianite exhibits Vitreous and Pearly luster. Prehnite, on other hand, exhibits Vitreous luster.