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Andalusite
Andalusite

Zoisite
Zoisite



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X
Andalusite
X
Zoisite

Andalusite Vs Zoisite

Astrology

Origin

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

Color

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

Streak

White
White, Colorless

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

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.05-3.213.20-3.50
1 7.18
👆🏻

Fracture

Uneven, Subconchoidal, Splintery
Uneven, Conchoidal, Even

Cleavage

Good on {110}, poor on {100}
Perfect {010} imperfect {100}

Mohs Hardness

7.56-7
2 10
👆🏻

Chemical Composition

Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Ca2Al3(SiO4)3(OH)

Optical Properties

Luster

Vitreous, Greasy
Vitreous

Pleochroism

strongly trichroic
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.627-1.6501.685-1.707
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.009-0.0100.006-0.018
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

Supports heart health
Supports heart health

Respiratory

Excellent
Excellent

Reproductive

-
Supports reproductive health

Digestive

-
-

Psychology

Perception
Transformation

Healing

Physical healing
Emotional healing

Qualities Associated

Self-Realization
-

Andalusite Vs Zoisite Fracture

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

Andalusite Vs Zoisite Luster

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