black sand
"Black sand" is known for its dark color due to high concentrations of heavy minerals and volcanic materials, often found on beaches and in mining areas.
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Definition
B2Geology
(scientific, informal)Dark-colored sand composed of volcanic minerals and fragments, often found on beaches near volcanic islands.
Example
- The black sand beaches of Hawaii are popular tourist attractions.
- Black sand is often formed from the rapid cooling of lava.
C1Mining
(technical, industrial)Sand rich in heavy minerals like magnetite and ilmenite, often found in placer deposits and used in mining activities.
Example
- Prospectors search for black sand as an indicator of gold deposits.
- The high iron content in black sand makes it valuable for certain industrial processes.
Similar
Terms that have similar or relatively close meanings to "black sand":
sand batterywet sanddesert sandsand sheetsand cracksand offsleepy sandsand trapsand cookiesand tablesand bathblack mudsand monkeyblack ashsand boil