black sand

Английский Язык - Турецкий язык

Определение black sand в Английский Язык Турецкий язык словарь

siyah kum

Английский Язык - Английский Язык

Определение black sand в Английский Язык Английский Язык словарь

Accumulation of fragments of durable, usually dark, heavy minerals (those with a density greater than that of quartz). These accumulations are found in streambeds or on beaches where stream flow and wave energy are sufficient to carry away low-density material but not the heavy minerals. Thus, heavy minerals resistant to weathering and abrasion concentrate in these areas, though they may be only minor constituents of inland rocks. Placer mining of such deposits yields magnetite, cassiterite, and zircon, as well as gold, platinum, and other rare metals

Турецкое произношение

bläk sänd

Произношение

/ˈblak ˈsand/ /ˈblæk ˈsænd/

Этимология

[ 'blak ] (adjective.) before 12th century. Middle English blak, from Old English blæc; akin to Old High German blah black, and probably to Latin flagrare to burn, Greek phlegein.