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“vitrain”
vitrain
1. A narrow glassy band found in bituminous coal.
2. A coal lithotype characterized by a brilliant, glassy appearance, jet-black color, cubic cleavage, and conchoidal fracture; a component of bonded coal; pure coal.
2. A coal lithotype characterized by a brilliant, glassy appearance, jet-black color, cubic cleavage, and conchoidal fracture; a component of bonded coal; pure coal.
This entry is located in the following unit:
vitreo-, vitre-, vitr- +
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