cassiterite

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cas·sit·er·ite

 (kə-sĭt′ə-rīt′)
n.
A light yellow, red-brown, or black mineral, SnO2, that is an important tin ore. Also called tinstone.

[French cassitérite, from Greek kassiteros, tin.]

cassiterite

(kəˈsɪtəˌraɪt)
n
(Minerals) a black or brown mineral, found in igneous rocks and hydrothermal veins. It is a source of tin. Composition: tin oxide. Formula: SnO2. Crystal structure: tetragonal. Also called: tinstone
[C19: from Greek kassiteros tin]

cas•sit•er•ite

(kəˈsɪt əˌraɪt)

n.
a brown or black mineral, tin dioxide, SnO2, usu. found as fibrous masses or placer deposits; the chief ore of tin.
[1855–60; < Greek kassíter(os) tin + -ite1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cassiterite - a hard heavy dark mineral that is the chief source of tin
atomic number 50, Sn, tin - a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition