Hollandite

Dravite

Facts about Hollandite and Dravite

Hollandite

Dravite

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1 Astrology

1.1 Origin

Not Available

Southern and central Africa

1.2 Color

Grey, Black, gray

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

1.3 Streak

Black

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

5.053.03-3.18

1 7.18

2.5 Fracture

Brittle, Metallic

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

2.6 Cleavage

Distinct / Good, Prismatic

{???} Indistinct

2.7 Mohs Hardness

4-67-7.5

2 10

2.8 Chemical Composition

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

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

Not Available

Vitreous

3.2 Pleochroism

Weak.

Very strong: pale yellow colorless

3.3 Dispersion

NA0.02

0.007 1

3.4 Transparency

Not Available

Transparent

3.5 Refractive Index

Not Available1.614-1.666

1 3.25

3.6 Optic Character

Not Available

3.7 Crystal System

monoclinic

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

Not Available

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

Hollandite Vs Dravite Specifications

While buying, there is a common bewilderment that most of the buyers face. As you compare Hollandite Vs Dravite specifications, it helps you to decide which gemstone suits your zodiac sign. Besides, the extent to which a gemstone benefits you can be understood after comparing Hollandite and Dravite Astrology. Its highly necessary to have a basic knowledge of facts about Hollandite and Dravite, before you finalize to buy one.

Hollandite is known to regulate the influence of Not Available planet. Dravite, the unique gem is known to regulate the influence of Not Available planet.