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Meaning of fire obsidian | Babel Free

Noun CEFR B2

Definitions

A rare variety of relatively clear volcanic glass that produces a vibrant color-reflectance caused by the inclusions of magnetite nanoparticles.

countable, uncountable

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

fire officer fire opal fire pan fire people fire philosopher fire philosophers

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