Onyx Square Coaster Set 3.75" x 3.75" x .25" Albite This extra-large multi-tone Botryoidal Malachite

This extra-large multi-tone Botryoidal Malachite displays well and is a beautiful addition to any collection

This formation is the most famous locality for rare

Elegant White Onyx Freeform Bowl is a beautiful and durable decorative bowl made from white onyx that is sculpted into a free-form shape

It is a lovely sea-blue color that is very reminiscent of the Caribbean seas

The intricate pattern of the semi-precious stone is accented by the sterling silver setting

Onyx Square Coaster Set 3.75" x 3.75" x .25" Albite This extra-large multi-tone Botryoidal MalachiteBeautiful Onyx Square Coaster Set. Each coaster measures individually 3. 75" x 3. 75" x . 25". Features natural colors of amber, white, and grey. Agate and Onyx are both varieties of layered chalcedony that differ only in the form of the bands. Agate has curved bands and onyx has parallel bands. Onyx primarily refers to the parallel banded variety of the silicate mineral chalcedony and is rated at a 7 on the Mohs hardness scale. The colors of its