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
Market Value Factors
Pricing varies for every rock and mineral, so use these universal factors to gauge Orthoclase tumbled before comparing listings or appraisals.
Size & Weight
Larger, intact specimens usually command higher prices.
Rarity & Demand
Scarce material or popular varieties sell at a premium.
Condition & Finish
Chips, repairs, and heavy wear lower value; clean prep helps.
Treatment & Provenance
Untreated specimens with documented locality are prized.
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.
Quick Facts
Physical Properties
- Streak
- White
Chemical Properties
- Chemical Formula
- K(AlSi3O8)
- Elements
- Al, K, O, Si
Also Known As
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