Polyhalite

Andalusite

Polyhalite Vs Andalusite

Polyhalite

Andalusite

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Astrology

Origin

Austria

Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)

Color

Colorless, White, Red, gray, pink

Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red

Streak

White

For which Rashi?

Planet

Venus

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

2.783.05-3.21

1 7.18

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Fracture

Conchoidal

Uneven, Subconchoidal, Splintery

Cleavage

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

Good on {110}, poor on {100}

Mohs Hardness

3.57.5

2 10

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Chemical Composition

K2Ca2Mg(SO4)4·2H2O

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

Optical Properties

Luster

Vitreous, Resinous

Vitreous, Greasy

Pleochroism

strongly trichroic

Dispersion

0.020.02

0.005 1

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Transparency

Transparent, Translucent

Refractive Index

1.546-1.5481.627-1.650

1 3.25

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Optic Character

Crystal System

Triclinic

Orthorhombic

Birefringence

0.0210.009-0.010

0 0.296

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Clarity

Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus

Cardiovascular

Supports heart health

Respiratory

Good

Excellent

Reproductive

Digestive

Psychology

Perception

Healing

Physical healing

Qualities Associated

Emotional Healing

Self-Realization

Polyhalite Vs Andalusite Fracture

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

Compare Red Gemstones

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Polyhalite Vs Andalusite Luster

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