Meaning of chelkarite | Babel Free
Definitions
An orthorhombic-dipyramidal colorless mineral containing boron, calcium, chlorine, hydrogen, magnesium, and oxygen.
CEFR level
B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See also
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