Meaning of black sand | Babel Free

Definitions

1. Basaltic sand of volcanic origin, frequently found associated with volcanic islands.
   countable, uncountable
2. Sand high in magnetite and other iron-rich ferrous minerals, frequently found associated with placer mining.
   countable, uncountable
3. Used other than figuratively or idiomatically: see black, sand.
   countable, uncountable

CEFR level