Dragonglass

Dragonglass is a type of glass that is formed when a dragon's breath melts stone, sand, or freezes water into a petrified solid state. There are several types of this glass that have been collected: The quality of these glass deposits vary, based on the quality and purity of the material that is melted and solidified, and there are some rare weapons that exist having been forged from dragonglass, but only a few smiths are said to be able to work with it, though none of them will confirm its true. Dragonglass is primarily sought after for its ultimate magical channeling abilities, a wand, staff or focus made from dragonglass is said to empower a spell to new heights and is sought after by not just kings, but by members of the heavens themselves.
 * Embershard- formed when fire breath melts stone, is very strong and is the heaviest of all dragonglass, it can be chipped away at and formed into crude sharpened edges, and has the translucent color of a red so dark it appears black.
 * Amberglass- formed when fire breath melts sand. This type of dragonglass is somewhat flexible, but and has the color of a dark orange or brown.
 * Thunderglass - formed when lightning breath hits and disperses through deep compacted sand, the result is long string-like ropes of glass. These ropes are incredibly flexible and light, and can be woven into a lattice for armor, the highest sought-after type of glass as it is the rarest and is useful for a variety of magical purposes. This glass is completely clear except for a few flecks of blue in the reflection.
 * Ashglass- Formed when lightning breath petrifies a tree. It is not as heavy as Embershard, but is similarly strong, however is much rarer than Emberglass or ambershard glass, it is a light brown color marbled with white petrified flecks and deposits of ash.
 * Greyshard - formed when ice breath solidifies and petrifies water, and is very light and brittle, it is able to stay together when cracked or shattered, it unclear as to how or why. When cracked, it offers about the same level of protection with increased flexibility.