Spinel

Astrophyllite

Spinel Vs Astrophyllite

Spinel

Astrophyllite

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1 Astrology

1.1 Origin

Brazil, USA, Madagascar, Sri Lanka, Burma, Thailand, Cambodia, Afghanistan, Russia

Canada, Russia

1.2 Color

Blue, Violet, Colorless, Red, Green, Brown

Brown, Yellow, Greenish, Brown, Yellow, Greenish, Brown, Brownish, Red, Yellow

1.3 Streak

White

Brown, White, Brown, White

1.4 For which Rashi?

Sagittarius, Scorpio, Sagittarius, Scorpio, Sagittarius, Scorpio

Not Available

1.5 Planet

Pluto

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

Projective

Not Available

1.9 Deities

Hephaestus

Not Available

1.10 Not to wear with

Not Available

1.11 Powers

Money

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

2.2 Solubility

none

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.64-3.663.2-3.4

1 7.18

2.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Brittle, Metallic

2.6 Cleavage

None, but may exhibit slight parting

Perfect on [001] imperfect on [100]

2.7 Mohs Hardness

2 10

2.8 Chemical Composition

MgAl₂O₄

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

3 Optical Properties

3.1 Luster

Vitreous

Greasy, Pearly

3.2 Pleochroism

Absent

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow

3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Transparent, Translucent, Transparent to translucent

Translucent

3.5 Refractive Index

1.731.678-1.758

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Isometric

Triclinic

3.8 Birefringence

Not Available0.050

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

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

Spinel Vs Astrophyllite Fracture

Fracture is an important parameter when you compare Spinel and Astrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Spinel Vs Astrophyllite 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 Spinel is Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Uneven. Astrophyllite fracture is Brittle, Metallic and Uneven.

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Spinel Vs Astrophyllite Luster

A primary knowledge about Spinel vs Astrophyllite 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. Spinel exhibits Vitreous luster. Astrophyllite, on other hand, exhibits Greasy and Pearly luster.