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Smooth stone with concentric rings and layered mineral buildup.
Striking Multi-Colored Onyx Stone Texture
Calcite specimen from Banska Stiavnica Mining District, central Slovakia.
Gypsum from Velke Nemcice, southeastern Czech republic.
Greenish yellow quartz from the island of Elba, Italy.
An etched aquamarine crystal from Ireland.

Free stock photosminerals (32)