Foitite

Dravite

Foitite Vs Dravite

Foitite

Dravite

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1 Astrology

1.1 Origin

Not Available, Southern and central Africa

Southern and central Africa

1.2 Color

Violet, Black

White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White

1.3 Streak

gray, White, gray, White

Colorless

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

2.2 Solubility

Not Available

2.3 Durability

Not Available

2.4 Specific Gravity

3.173.03-3.18

1 7.18

2.5 Fracture

Handbook of mineralogy (2001)

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

2.6 Cleavage

None

{???} Indistinct

2.7 Mohs Hardness

77-7.5

2 10

2.8 Chemical Composition

Na x[Fe2+2(Al,Fe3+ )]Al 6(BO 3) 3Si 6O 18(OH) 4Anthony et al , Handbook of mineralogy (2001)

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

3 Optical Properties

3.1 Luster

Vitreous

3.2 Pleochroism

Strong: pale lavender dark blueAnthony et al

Very strong: pale yellow colorless

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

TranslucentAnthony et al, Translucent

Transparent

3.5 Refractive Index

Not Available1.614-1.666

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

3.8 Birefringence

Not Available0.014-0.032

0 0.296

3.9 Clarity

TranslucentAnthony et al

Transparent

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

Foitite Vs Dravite Fracture

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

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Foitite Vs Dravite Luster

A primary knowledge about Foitite vs Dravite 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. Foitite exhibits Vitreous luster. Dravite, on other hand, exhibits Vitreous luster.