(Mineralogie) Kiese, metall. glänzendes Schwefelerz, z.B. Eisen-, Kupfer-, Arsen-K.
(Geologie) Lockersediment aus Gesteinsbruchstücken, die durch Wasser gerundet wurden, von 260 mm Korngröße; meist Quarz.
Money.
ETYM Old Fren. gravele, akin to French gr?ve a sandy shore, strand; of Celtic origin; cf. Armor. grouan gravel, W. gro coarse gravel, pebbles, and Skr. grâvan stone.
Rock fragments and pebbles; SYN. crushed rock.
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Coarse sediment consisting of pebbles or small fragments of rock, originating in the beds of lakes and streams or on beaches. Gravel is quarried for use in road building, railroad ballast, and for an aggregate in concrete. It is obtained from quarries known as gravel pits, where it is often found mixed with sand or clay.
Some gravel deposits also contain placer deposits of metal ores (chiefly tin) or free metals (such as gold and silver).
ETYM OE, greet, greot, sand, gravel, AS. greót grit, sant, dust; akin to OS griott, OFries. gret gravel, Old High Germ. grioz, German griess, Icel. grjôt, and to Eng. groats, grout. Related to Groats, Grout, Grail gravel.
A hard coarse-grained siliceous sandstone; SYN. gritrock, gritstone.
ETYM Scot. kale, kail, cale, colewort, Gael. cael; akin to Irish cal, w. cawl, Armor. kaol. Related to Cole.
1. A hardy cabbage with coarse curly leaves that do not form a head; SYN. kail, cole, borecole, colewort, Brassica oleracea acephala.
2. Coarse curly-leafed cabbage; SYN. kail, cole.
Type of cabbage.