Anthracite
Definition
The highest rank of fossil coal, characterized by an extremely high fixed carbon content (92% to 98%), a minimal percentage of volatile matter, and a distinct semi-metallic luster, representing the final stage of coalification.
Bilingual Equivalents
- Anthracite
- Hard coal
Grammatical & Source Details
| Inflection Type | Neuter mass noun, systematically adapting to standard singular case endings. |
| Formation | International geological term rooted in Ancient Greek 'anthrax' (coal), describing the mineral's metamorphic origin. |
| Spelling / Pronunciation | [ˈæn.θrə.saɪt] |
| Source | International Coal Classification and Geochemical Standards Manual |
Contextual Usage Examples
RO: Uzina metalurgică a importat o șarjă masivă de anthracit pentru a asigura temperatura necesară în furnal.
EN: The metallurgical plant imported a massive batch of anthracite to ensure the required temperature in the furnace.
RO: Datorită metamorfismului intens, straturile sedimentare conțin un anthracit pur, foarte greu de aprins dar extrem de eficient.
EN: Due to intense metamorphism, the sedimentary layers contain a pure anthracite, very difficult to ignite but extremely efficient.
RO: Analiza de laborator a arătat că eșantionul de anthracit are un conținut de cenușă extrem de scăzut.
EN: The laboratory analysis showed that the anthracite sample has an extremely low ash content.
Idioms & Phrases
Putere calorifică a anthracitului / Anthracite heating value
RO: Cantitatea maximă de căldură eliberată prin arderea completă a unei unități de masă din acest cărbune superior.
EN: The maximum amount of heat released by the complete combustion of a mass unit of this high-grade coal.
Filtru de anthracit / Anthracite filter media
RO: Sistem de filtrare granular utilizat în tratarea apelor uzate, bazat pe particule zdrobite de cărbune pentru reținerea suspensiilor.
EN: A granular filtration system used in wastewater treatment, based on crushed coal particles to retain suspended solids.
Culoare anthracit / Anthracite grey
RO: Nuanță închisă de gri, aproape neagră, cu reflexii metalice, inspirată de aspectul fizic al acestui mineral.
EN: A dark shade of grey, almost black, with metallic reflections, inspired by the physical appearance of this mineral.
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