Sardonyx

"Sardonyx" is a Gem who is set to appear in the upcoming third StevenBomb event.

Abilities
It is assumed that Sardonyx possesses standard Gem abilities, including weapon-summoning, bubbling, fusion, shape-shifting, regeneration, agelessness and superhuman strength/durability.

Trivia

 * Sardonyx was revealed in a Crewniverse Tumblr post.
 * In addition, the StevenBomb that Sardonyx is set to appear in is named after it (#weekofsardonyx), which begins on July 13th and ends July 17th.
 * Sardonyx is the 5th Gem to be named after a type of quartz, the previous four being Amethyst, Rose Quartz, Jasper, and Rainbow Quartz.
 * Steven's Latin American voice actor, Leisha Medina, has confirmed that Sardonyx will appear in "Cry for Help".

Gemology
Gemstone Information

Sardonyx
 * Sardonyx is a type of micro-crystalline quartz, specifically onyx, banded with browns, reds, or yellows instead of black.
 * Onyx and Sardonyx are types of agate.
 * Sardonyx is closely related to onyx, sard and carnelian. Banded agate with more blacks or grays is generally classified as onyx, banded agate with more browns, reds, yellows or oranges is generally classified as sardonyx. Solid red or reddish-brown agate is generally classified as sard or carnelian, depending on the shade.
 * Sardonyx, as with many other gemstones, can also appear as other colors, such as green and purple.
 * The name Sardonyx itself is an amalgamation of its composition, the two minerals ‘sard’ and ‘onyx’.
 * Sardonyx is a gemstone of strength, protection, and victory.
 * Sardonyx is an alternate birthstone of August.
 * Peridot is the official August birthstone.