Alexandrite

Gahnospinel

Alexandrite Vs Gahnospinel

Alexandrite

Gahnospinel

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1 Astrology

1.1 Origin

Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma

Sri Lanka

1.2 Color

Green

Blue

1.3 Streak

Not Available

1.4 For which Rashi?

Scorpio

Sagittarius, Scorpio

1.5 Planet

Venus

Pluto

1.6 Element of Planets

Earth

Not Available

1.7 How to Wear?

1.7.1 Finger

Not Available

1.7.2 Ring Metal

Not Available

1.8 Energy

Projective, Receptive

Projective

1.9 Deities

Not Available

Hephaestus

1.10 Not to wear with

Not Available

1.11 Powers

Love

Money

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

3.69-3.813.65-4.55

1 7.18

2.5 Fracture

Not Available

ConchoidalArthur Thomas, Gemstones (2009)

2.6 Cleavage

1,1 ; 3,2.

None, but may exhibit slight parting

2.7 Mohs Hardness

8.57.5-8

2 10

2.8 Chemical Composition

BeAl ₂ O ₄

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Not Available

AbsentWalter Schumann

3.3 Dispersion

NANA

0.007 1

3.4 Transparency

Transparent, Transparent to nearly opaque

Gemmological Tables (2004)

3.5 Refractive Index

1.739-1.7701.735-1.790

1 3.25

3.6 Optic Character

Biaxial/+

Not Available

3.7 Crystal System

Orthorhombic

Isometric

3.8 Birefringence

0.007-0.010Not Available

0 0.296

3.9 Clarity

Transparent

TransparentUlrich Henn and Claudio C. Milisenda

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

Alexandrite Vs Gahnospinel Fracture

Fracture is an important parameter when you compare Alexandrite and Gahnospinel Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Gahnospinel 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. Gahnospinel fracture is ConchoidalArthur Thomas and Gemstones (2009).

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Alexandrite Vs Gahnospinel Luster

A primary knowledge about Alexandrite vs Gahnospinel 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. Alexandrite exhibits Vitreous luster. Gahnospinel, on other hand, exhibits Vitreous luster.