anthracite coal

Thân thiện

A miner holds a piece of anthracite coal in his gloved hand.

Definition

1. Noun:
   • A hard, lustrous, and nearly pure carbon form of coal. It is a natural mineral fuel characterized by its high carbon content, low volatile matter, and a high energy density. It burns with a short, blue, and smokeless flame, producing intense heat.

Usage

• Anthracite coal is used as a specific term to describe the highest rank of coal, distinguished from softer, smokier types like bituminous coal.
• It is typically used in contexts related to energy, geology, mining, and heating.

Examples

• The old furnace was designed to burn anthracite coal efficiently.
• Anthracite coal is prized for its clean-burning properties compared to other coals.
• This region's geology is rich in deposits of anthracite coal.

Advanced Usage

• "Anthracite" as a standalone noun: In technical and commercial contexts, "anthracite" is often used alone to mean anthracite coal.
  • The stove requires anthracite, not bituminous coal.

Variants and Related Words

• Anthracite (n): The shortened, common form of "anthracite coal."
• Hard coal (n): A synonym for anthracite coal, emphasizing its physical property.
• Bituminous coal (n): A lower-rank, softer coal that is more common and contains more volatile matter.

Synonyms

• Hard coal
• Stone coal (less common)

Related Terms (Contextual)

• Carbon content: A key property distinguishing anthracite (high carbon) from other coal types.
• Smokeless fuel: A descriptive term highlighting one of anthracite coal's primary characteristics.

Học thuật

Noun

1. a hard natural coal that burns slowly and gives intense heat

Từ đồng nghĩa

• anthracite
• hard coal