Coal is classified in four main categories based on the amounts of carbon it contains and the heat energy it can produce. The higher ranks of coal typically contain more heat-producing energy. Lignite â Over time, heat and burial pressure turn peat into lignite. Lignite is somewhat light in color, soft and crumbly.
Note: The latest contact information is available at the DARS website. DARS provides services to Texans who are disabled and to families with children who have developmental delays.
Abaris Direct Services. Abaris Direct Services is designed to provide our customers with cost effective training options and technical expertise in those areas in which they may need assistance.