Fireglass

In the coldest reaches of Ainn's Belt, warmth isn't something to take for granted. From growing food to heating houses, controlling the temperature is very important. One of the most useful ways to do that is with fireglass. Made from crystals found in the Southern Deserts, fireglass has the unique property of storing heat. If left in the sun all day, a single pane of fireglass can heat a home for an entire night.

Properties

Material Characteristics

Fireglass is most commonly found in fist-sized crystals of varying colors. It grows in the deserts to the south, appearing almost like a flower springing from the sand.

Physical & Chemical Properties

Generally warm to the touch, fireglass collects heat over time. In the deserts, collection can be dangerous due to the potential heat capacity and relative time spent in the sun. Fireglass is not flammable, but breaking a piece that has stored a lot of heat results in the release of that heat all at once. The explosive force of the heat wave can be very dangerous if not handled correctly.

Compounds

Fireglass crystals are mixed with ore dust to create semi-transparent fireglass panes, which are used in constructing heated rooms and buildings.

Geology & Geography

This material is found in the Southern Deserts, growing like flowers. It's unknown how much there is, but it continues to grow after harvest.

Origin & Source

Fireglass crystals usually grow pure but can attach to other minerals and plants, using them as trellises to grow taller.

Life & Expiration

Over many months harvested and refined fireglass loses its heat capacity and must be replaced.

Distribution

Trade & Market

The miners of the Southern Deserts trade fireglass to the nations of Ainn's Belt usually for gold and other minerals.

Storage

When not in use, fireglass is stored in cool, dark places to prevent excess heat collection and accidental breakage.

Value

50 gp per square foot

Rarity

Common

Taste

Glassy

Color

Yellow, red, and orange

Common State

Solid crystals