galena(redirected from Gallena)
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A city of extreme northwest Illinois on the Mississippi River. It was a prosperous port and the center of a lead-mining region during the 1800s.
A gray mineral, essentially PbS, the principal ore of lead.
[Latin galēna, lead ore.]
(Minerals) a grey mineral, found in hydrothermal veins. It is the chief source of lead. Composition: lead sulphide. Formula: PbS. Crystal structure: cubic
[C17: from Latin: lead ore, dross left after melting lead]
a common heavy mineral, lead sulfide, PbS, occurring in lead-gray crystals, and cleavable masses: the principal ore of lead.
[1595–1605; < Latin: lead ore]
A gray, metallic mineral consisting of lead and sulfur. Galena usually occurs in cube-shaped crystals within veins of igneous rock or in sedimentary rocks. It is the main ore of lead.
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|Noun||1.||galena - soft blue-grey mineral; lead sulfide; a major source of lead|
atomic number 82, Pb, lead - a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey; "the children were playing with lead soldiers"
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition