siderite noun.
['sʌɪdǝrʌɪt] Also (earlier) siderites.
M16.[In early use from French
sidérite or Latin
siderites,
-itis from Greek
sidēritēs,
-itis, from
sidēros iron; later directly from Greek
sidēros +
-ITE1.]
Mineralogy.
1. An iron-coloured stone supposed to cause discord. Long
obsolete exc.
Hist. M16.2. =
LODESTONE 1.
L16-L17.3. Orig., any of various minerals. Now
spec. (a) native ferrous carbonate, a mineral that is a source of iron and occurs in sedimentary rocks and ore veins as translucent, usu. brown crystals of the trigonal system;
(b) a blue variety of quartz.
L18.4. A meteorite consisting mainly of iron and nickel.
L19. ■ sideritic
[sʌɪdǝ'rɪtɪk] adjective (
rare) of the nature of siderite
L18. [TahlilGaran] English Dictionary ▲