Grossular

Hollandite

Grossular Vs Hollandite

Grossular

Hollandite

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1 Astrology

1.1 Origin

Sri Lanka, India, Brazil

Not Available

1.2 Color

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

Grey, Black, gray

1.3 Streak

Brownish, White, Brownish, White

Black

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

3.55-3.735.05

1 7.18

2.5 Fracture

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

Brittle, Metallic

2.6 Cleavage

none

Distinct / Good, Prismatic

2.7 Mohs Hardness

7-7.54-6

2 10

2.8 Chemical Composition

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

Ba(Mn++++,Mn++)8O16

3 Optical Properties

3.1 Luster

Greasy, Vitreous

Not Available

3.2 Pleochroism

None

Weak.

3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Not Available

3.5 Refractive Index

1.730-1.760Not Available

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

cubic

monoclinic

3.8 Birefringence

0.020Not Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Not Available

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 Hollandite Fracture

Fracture is an important parameter when you compare Grossular and Hollandite Physical Properties. It is necessary to understand the significance of these properties, before you compare Grossular Vs Hollandite 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. Hollandite fracture is Brittle and Metallic.

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Grossular Vs Hollandite Luster

A primary knowledge about Grossular vs Hollandite 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.