Start with the professional grade scrub made from mineral crystals to reveal a radiant complexion.

Some can contain mineral crystals such as acrid tasting and poisonous calcium oxalate or carbonate or silica.

This initiates an electrolytic reaction causing mineral crystals naturally found in seawater, mainly calcium carbonate and magnesium hydroxide, to grow on the structure.

Vugs may also result when mineral crystals or fossils inside a rock matrix are later removed through erosion or dissolution processes, leaving behind irregular voids.

Other types of included matter deposited during agate-building include sagenitic growths (radial mineral crystals) and chunks of entrapped detritus (such as sand, ash, or mud).