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Andalusite
Andalusite

Caledonite
Caledonite



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Andalusite
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Caledonite

Andalusite Vs Caledonite

Astrology

Origin

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

Color

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

Streak

White
Blue, Greenish, 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

-
-

Durability

-
-

Specific Gravity

3.05-3.215.6-5.76
1 7.18
👆🏻

Fracture

Uneven, Subconchoidal, Splintery
Uneven

Cleavage

Good on {110}, poor on {100}
[001] perfect; [100] distinct

Mohs Hardness

7.52.5-3
2 10
👆🏻

Chemical Composition

Al 2SiO 5Michael O’Donoghue , Gems, Sixth edition (2006) More from other references
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)

Optical Properties

Luster

Vitreous, Greasy
Vitreous

Pleochroism

strongly trichroic
Weak

Dispersion

0.020.05
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent

Refractive Index

1.627-1.6501.818-1.909
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.009-0.0100.091
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

Enhances mental clarity and focus
-

Cardiovascular

Supports heart health
-

Respiratory

Excellent
Good

Reproductive

-
-

Digestive

-
-

Psychology

Perception
Creativity

Healing

Physical healing
-

Qualities Associated

Self-Realization
-

Andalusite Vs Caledonite Fracture

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

Andalusite Vs Caledonite Luster

A primary knowledge about Andalusite vs Caledonite 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. Caledonite, on other hand, exhibits Vitreous luster.