Onyx Square Coaster Set 3.75" x 3.75" x .25" Prong Set Labradorite is known for its

Labradorite is known for its beautiful flashes of color that can range from bright shades of green to blues

These creatures roamed the seas during the Ordovician Period (485 million - 443 million years ago)

Bumblebee Jasper is a type of mineral that is formed from a combination of volcanic ash

Measurements are 5" in diameter and weighs 5

Onyx Square Coaster Set 3.75" x 3.75" x .25" Prong Set Labradorite is known for itsBeautiful 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