Sardonyx Facts

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Sardonyx Facts 

Chemical Composition

Chemical composition is Silicon Dioxide [ SiO2] .

Colours

Main colour is orange red. Other colours are yellow, brown, purple, gray, pink and green.

Band Colours

Reddish brown, white, brown, black and many more.

Hardness

6.5 – 7 Mohs

Specific Gravity

2.65 - 2.66

Refractive Index

Varies between 1.543 to 1.554

Solid State

Translucent to opaque

Bi-refringence

0.009 

Phenomena

None

Fractures

Very less

Enhancement

Usually it is dyes or stained.

Source

Found worldwide. Few countries to name are India, Pakistan, USA, Germany, Brazil, Mexico, Czechoslovakia and Africa.

Precautions

Avoid sharps blows , large temperatures changes and harsh chemicals.

 
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