Definify.com
Webster 1913 Edition
Siderite
Sid′er-ite
,Noun.
[L.
sideritis
loadstone, Gr. [GREEK][GREEK][GREEK][GREEK], [GREEK][GREEK][GREEK][GREEK], of iron, from [GREEK][GREEK][GREEK][GREEK] iron.] 1.
(Min.)
(a)
Carbonate of iron, an important ore of iron occuring generally in cleavable masses, but also in rhombohedral crystals. It is of a light yellowish brown color. Called also
sparry iron
, spathic iron
. (b)
A meteorite consisting solely of metallic iron.
(c)
An indigo-blue variety of quartz.
(d)
Formerly, magnetic iron ore, or loadstone.
2.
(Bot.)
Any plant of the genus
Sideritis
; ironwort. Webster 1828 Edition
Siderite
SID'ERITE
,Noun.
1.
The loadstone; also, iron-wort, a genus of plants; also, the common ground pine2.
In mineralogy, a phosphate of iron.