Top-Ranked Fine-Grained Categories of lignite: =>see poetic categories

• carbonaceous:material,
• colloidal:substance,
• raw:material,
• solid:fuel,
• organic:rock,
• organic:material,
• bituminous:material,
• volatile:coal,
• organic:substance,
• dry:material,
• bituminous:substance,
• cool:material,
• carbonaceous:fuel,
• irregular:object,
• organic:solid,
• semiprecious:stone,
• carbonaceous:precursor,
• wet:material,
• indigenous:fuel,
• costly:material,
• heterogeneous:material,
• domestic:coal,
• geological:deposit,
• sticky:material,
• local:fuel,
• wet:coal,
• traditional:material,
• base:material,
• black:material,
• porous:rock,
• harmful:substance,
• organic:matter,
• carbonaceous:matter,
• industrial:mineral,
• solid:material,
• particulate:material,
• conventional:fuel,
• alternative:fuel,
• deleterious:material,
• starting:material,
• non-metallic:mineral,
• similar:material,
• sedimentary:deposit,
• foreign:matter,
• unwanted:item,
• diverse:fuel,
• harmful:material,
• primary:coal,
• solid:mineral,
• economic:deposit,
• commercial:fuel,
• carbonaceous:deposit,
• organic:sediment,
• deleterious:contaminant,
• combustible:substance,
• combustible:solid,
• wet:fuel,
• solid:combustible,
• plastic:material,
• typical:fuel,
• commercial:solid,
• deleterious:substance,
• combustible:fuel,
• harmful:contaminant,