Danburite

London blue topaz

Danburite Vs London blue topaz

Danburite

London blue topaz

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1 Astrology

1.1 Origin

USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Color: colorless, light yellow, light pink, Hardness: 7, Refractive index: 1.63 1.64, Density: 2.98 3.03, Chemical composition: Ca(B2Si2O8), Crystal structure: orthorhombic, Origins: USA, Mexico, Brazil, Germany, Switzerland, Sri Lanka, Burma, Madagascar, Japan. Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.

Not Available

1.2 Color

Yellow, Brown, Colorless, White, gray, Brownish, Yellow

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

1.3 Streak

White

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1.4 For which Rashi?

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1.5 Planet

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1.6 Element of Planets

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1.7 How to Wear?

1.7.1 Finger

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1.7.2 Ring Metal

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1.8 Energy

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1.9 Deities

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1.10 Not to wear with

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1.11 Powers

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1.12 Birthstone

1.12.1 Planetary

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1.12.2 Talisman

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2 Physical Properties

2.1 Tenacity

Brittle

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2.2 Solubility

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2.3 Durability

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2.4 Specific Gravity

2.97-3.03Not Available

1 7.18

2.5 Fracture

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle

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2.6 Cleavage

{001} Poor

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2.7 Mohs Hardness

7Not Available

2 10

2.8 Chemical Composition

CaB 2(SiO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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3 Optical Properties

3.1 Luster

Vitreous, Greasy

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3.2 Pleochroism

Weak: pale yellow yellow

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3.3 Dispersion

0.02NA

0.007 1

3.4 Transparency

Gemmological Tables (2004) More from other references

Not Available

3.5 Refractive Index

1.627-1.639Not Available

1 3.25

3.6 Optic Character

Biaxial/+

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3.7 Crystal System

Orthorhombic

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3.8 Birefringence

0.006Not Available

0 0.296

3.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

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4 Benefits

4.1 Physical

4.1.1 Neurological

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4.1.2 Cardiovascular

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4.1.3 Respiratory

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4.1.4 Reproductive

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4.1.5 Digestive

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4.2 Psychology

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4.3 Healing

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4.4 Qualities Associated

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Danburite Vs London blue topaz Fracture

Fracture is an important parameter when you compare Danburite and London blue topaz Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs London blue topaz 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 Danburite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.

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Danburite Vs London blue topaz Luster

A primary knowledge about Danburite vs London blue topaz 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. Danburite exhibits Greasy and Vitreous luster.