Achroite

Neptunite

Achroite Vs Neptunite

Achroite

Neptunite

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1 Astrology

1.1 Origin

Afghanistan, Sri Lanka

USA

1.2 Color

Colorless, Blue

Black, Red, Brown

1.3 Streak

Not Available

Brown, Red

1.4 For which Rashi?

Not Available

1.5 Planet

Not Available

1.6 Element of Planets

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Not Available

1.9 Deities

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Not Available

1.12 Birthstone

1.12.1 Planetary

Not Available

1.12.2 Talisman

Not Available

2 Physical Properties

2.1 Tenacity

Not Available

Brittle

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

2.90-3.403.19-3.23

1 7.18

2.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

2.6 Cleavage

Not Available

{110} good

2.7 Mohs Hardness

7-7.55-6

2 10

2.8 Chemical Composition

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael OâDonoghue , Gems, Sixth Edition (2006)

3 Optical Properties

3.1 Luster

Not Available

Vitreous

3.2 Pleochroism

Not Available

x=yellow-orange

3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Transparent, Translucent

Translucent

3.5 Refractive Index

1.614-1.6661.692-1.734

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Not Available

monoclinic

3.8 Birefringence

0.014-0.0400.0294-0.0452

0 0.296

3.9 Clarity

Transparent

Translucent

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

Achroite Vs Neptunite Fracture

Fracture is an important parameter when you compare Achroite and Neptunite Physical Properties. It is necessary to understand the significance of these properties, before you compare Achroite Vs Neptunite 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 Achroite is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven. Neptunite fracture is Brittle, Conchoidal, ConchoidalAnthony et al and Handbook of mineralogy (2001).

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Achroite Vs Neptunite Luster

A primary knowledge about Achroite vs Neptunite 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. Neptunite, on other hand, exhibits Vitreous luster.