Andalusite

Malachite

Andalusite Vs Malachite

Andalusite

Malachite

Add ⊕

1 Astrology

1.1 Origin

Spain, Brazil, USA, Sri Lanka, Burma, Color: strongly pleochroic, reddish brown, pink / yellowish green, Hardness: 7 7.5, Refractive index: 1.63 1.65, Density: 3.13 3.21, Chemical composition: Al2SiO5, Crystal structure: orthorhombic, Lustre: vitreous, greasy, Origins: Spain, Burma. Discovered in Andalusia (Spain), the andalusite stone is relatively rare, with big crystals over 10 ct. especially rare. Due to its remarkable pleochroism effect, the stone is highly valued by collectors., brown

Southern and central Africa, green

1.2 Color

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

Green

1.3 Streak

White

Green

1.4 For which Rashi?

All

Capricorn, Scorpio

1.5 Planet

Venus

1.6 Element of Planets

Not Available

Earth

1.7 Energy

Projective, Receptive

Receptive

1.8 How to Wear?

1.8.1 Finger

Not Available

1.8.2 Ring Metal

Not Available

1.9 Deities

Not Available

Freyja

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

Protection

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.05-3.213.25-4.10

1 7.18

2.5 Fracture

Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

Conchoidal, Gemstones (2009), Uneven

2.6 Cleavage

Good on {110}, poor on {100}

Perfect on { 2 01} fair on {010}

2.7 Mohs Hardness

7.53.5-4

2 10

2.8 Chemical Composition

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

Cu₂CO₃(OH)₂

3 Optical Properties

3.1 Luster

Vitreous, Greasy

Adamantine, Vitreous, Silky, Fibrous

3.2 Pleochroism

strongly trichroic

Not Available

3.3 Dispersion

0.02None

0.007 1

3.4 Transparency

Transparent, Translucent

Opaque

3.5 Refractive Index

1.627-1.6501.655-1.909

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Orthorhombic

monoclinic

3.8 Birefringence

0.009-0.0100.254

0 0.296

3.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

4 Benefits

4.1 Physical

4.1.1 Neurological

Not Available

4.1.2 Cardiovascular

Not Available

4.1.3 Respiratory

Not Available

4.1.4 Reproductive

Not Available

4.1.5 Digestive

Not Available

4.2 Psychology

Not Available

4.3 Healing

Not Available

4.4 Qualities Associated

Not Available

Andalusite Vs Malachite Fracture

Fracture is an important parameter when you compare Andalusite and Malachite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Malachite 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, Splintery, UnevenArthur Thomas and Gemstones (2009). Malachite fracture is Conchoidal, Gemstones (2009) and Uneven.

Compare Brown Gemstones

Andalusite Vs Augite

Andalusite Vs Baddeleyite

Andalusite Vs Baryte Barite

Andalusite Vs Malachite Luster

A primary knowledge about Andalusite vs Malachite 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. Malachite, on other hand, exhibits Adamantine, Vitreous, Silky and Fibrous luster.