black sand

English

Noun

black sand (countable and uncountable, plural black sands)

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

Related terms

• brown sand
• white sand
• yellow sand