Orthoclase tumbled

A variety of Orthoclase

What is Orthoclase tumbled?

Orthoclase tumbled is most often seen in hues of light brown or a grey-beige, but shades of red and white have also been found. The most important commercial deposits are mined in Russia, Tanzania, Italy, and the USA. Orthoclase tumbled is a collector’s gem and often made in to cabochons.

Optical Properties

Refractive Index
1.518-1.536
Birefringence
0.005-0.008
Pleochroism
Weak
Optical Character
Biaxial negative
Dispersion
0.012

Orthoclase tumbled Market Value Calculator

Estimate the market value of Orthoclase tumbled using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Preview only. Full pricing comps and valuation report in the app.

Orthoclase tumbled Localities Map

See where Orthoclase tumbled is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Quick Facts

Physical Properties

Streak
White

Chemical Properties

Chemical Formula
K(AlSi3O8)
Elements
Al, K, O, Si

Also Known As

Orthoclase tumbledArgillyiteCottaiteLeeliteMurchisonite
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