SIDERITES
Noun
siderites
plural of siderite
Source: Wiktionary
SIDERITE
Sid"er*ite, n. Etym: [L. sideritis loadstone, Gr.
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.)
Definition: Any plant of the genus Sideritis; ironwort.
Source: Webster’s Unabridged Dictionary 1913 Edition