Almandine

Dravite

Almandine Vs Dravite

Almandine

Dravite

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1 Astrology

1.2 Origin

Austria, Brazil, Canada, India, Madagascar, Russia, Sri Lanka, USA

Southern and central Africa

1.4 Color

Red, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black, Brown, Brownish, Red, Red, Black

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

1.8 Streak

White

Colorless

1.11 For which Rashi?

Not Available

1.14 Planet

Not Available

1.17 Element of Planets

Not Available

1.18 Energy

Not Available

1.19 How to Wear?

1.19.1 Finger

Not Available

2.1.1 Ring Metal

Not Available

2.3 Deities

Not Available

2.6 Not to wear with

Not Available

2.9 Powers

Not Available

2.10 Birthstone

2.10.1 Planetary

Not Available

3.0.1 Talisman

Not Available

4 Physical Properties

4.2 Tenacity

Not Available

4.4 Solubility

Not Available

4.6 Durability

Not Available

4.7 Specific Gravity

3.95-4.303.03-3.18

1 7.18

4.14 Fracture

Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

4.15 Cleavage

none

{???} Indistinct

4.16 Mohs Hardness

7-7.57-7.5

2 10

6.3 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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

7 Optical Properties

7.1 Luster

Greasy, Vitreous

Vitreous

7.2 Pleochroism

None

Very strong: pale yellow colorless

7.3 Dispersion

0.030.02

0.007 1

7.8 Transparency

Gemmological Tables (2004) More from other references

Transparent

7.9 Refractive Index

1.770-1.8201.614-1.666

1 3.25

7.16 Optic Character

Not Available

7.17 Crystal System

cubic

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

7.18 Birefringence

Not Available0.014-0.032

0 0.296

9.2 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Transparent

10 Benefits

10.1 Physical

10.1.1 Neurological

Not Available

10.2.1 Cardiovascular

Not Available

10.3.1 Respiratory

Not Available

10.4.1 Reproductive

Not Available

10.4.2 Digestive

Not Available

10.5 Psychology

Not Available

10.6 Healing

Not Available

10.7 Qualities Associated

Not Available

Almandine Vs Dravite Fracture

Fracture is an important parameter when you compare Almandine and Dravite Physical Properties. It is necessary to understand the significance of these properties, before you compare Almandine 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 Almandine is Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle and Conchoidal. Dravite fracture is Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal and Brittle.

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Almandine Vs Dravite Luster

A primary knowledge about Almandine 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. Almandine exhibits Greasy and Vitreous luster. Dravite, on other hand, exhibits Vitreous luster.