Grossular

Poldervaartite

Grossular Vs Poldervaartite

Grossular

Poldervaartite

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1 Astrology

1.1 Origin

Sri Lanka, India, Brazil

Southern and central Africa

1.2 Color

Green, Brown, Brown, Colorless, Green, gray, Yellow

Colorless, White

1.3 Streak

Brownish, White, Brownish, White

White

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

3.55-3.732.91

1 7.18

2.5 Fracture

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

Handbook of mineralogy (2001)

2.6 Cleavage

none

None

2.7 Mohs Hardness

7-7.5Not Available

2 10

2.8 Chemical Composition

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

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

3 Optical Properties

3.1 Luster

Greasy, Vitreous

Vitreous

3.2 Pleochroism

None

Weak: colorless light gray bluish grayAnthony et al

3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Transparent

3.5 Refractive Index

1.730-1.7601.634-1.656

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

cubic

Not Available

3.8 Birefringence

0.020Not Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

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

Grossular Vs Poldervaartite Fracture

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

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Grossular Vs Poldervaartite Luster

A primary knowledge about Grossular vs Poldervaartite 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. Grossular exhibits Greasy and Vitreous luster. Poldervaartite, on other hand, exhibits Vitreous luster.