Caledonite

Polyhalite

Caledonite Vs Polyhalite

Caledonite

Polyhalite

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Astrology

Origin

USA

Austria

Color

Blue, Green

Colorless, White, Red, gray, pink

Streak

Blue, Greenish, 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

Brittle

Solubility

Soluble

Durability

Specific Gravity

5.6-5.762.78

1 7.18

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Fracture

Uneven

Conchoidal

Cleavage

[001] perfect; [100] distinct

Perfect on {10 1 }; parting on {010}

Mohs Hardness

2.5-33.5

2 10

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Chemical Composition

Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

K2Ca2Mg(SO4)4·2H2O

Optical Properties

Luster

Vitreous

Vitreous, Resinous

Pleochroism

Weak

Dispersion

0.050.02

0.005 1

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Transparency

Transparent

Refractive Index

1.818-1.9091.546-1.548

1 3.25

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Optic Character

Crystal System

Orthorhombic

Triclinic

Birefringence

0.0910.021

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Cardiovascular

Respiratory

Good

Reproductive

Digestive

Psychology

Creativity

Healing

Physical healing

Qualities Associated

Emotional Healing

Caledonite Vs Polyhalite Fracture

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

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Caledonite Vs Polyhalite Luster

A primary knowledge about Caledonite vs Polyhalite 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. Caledonite exhibits Vitreous luster. Polyhalite, on other hand, exhibits Vitreous and Resinous luster.