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Dravite
Dravite

Ettringite
Ettringite



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Dravite
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Ettringite

Dravite Vs Ettringite

Astrology

Origin

Southern and central Africa
Southern and central Africa

Color

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

Streak

Colorless
White

For which Rashi?

-
-

Planet

-
-

Element of Planets

-
-

Energy

-
-

How to Wear?

Finger

-
-

Ring Metal

-
-

Deities

-
-

Not to wear with

-
-

Powers

-
-

Birthstone

Planetary

-
-

Talisman

-
-

Physical Properties

Tenacity

-
-

Solubility

-
Partially soluble in water

Durability

-
-

Specific Gravity

3.03-3.181.77
1 7.18
👆🏻

Fracture

Uneven, Irregular, Conchoidal
-

Cleavage

{???} Indistinct
Perfect on {10 1 0}

Mohs Hardness

7-7.52-2.5
2 10
👆🏻

Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Very strong: pale yellow colorless
-

Dispersion

0.020.04
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.614-1.6661.470-1.491
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.014-0.0320.021
0 0.296
👆🏻

Clarity

Transparent
Transparent

Benefits

Physical

Neurological

-
-

Cardiovascular

-
-

Respiratory

-
-

Reproductive

-
-

Digestive

-
-

Psychology

Self-acceptance
Adaptability

Healing

Emotional healing
Emotional healing

Qualities Associated

Self-Exploration
Balance

Dravite Vs Ettringite Fracture

Fracture is an important parameter when you compare Dravite and Ettringite Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Ettringite 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 Dravite is Uneven, Irregular and Conchoidal.

Dravite Vs Ettringite Luster

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