What does Bournonite mean?

Bournonite meaning in General Dictionary

A mineral of a steel gray to black color and metallic luster occurring crystallized often in double crystals shaped like cogwheels wheel ore additionally huge it really is a sulphide of antimony lead and copper

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  • A mineral of a steel-gray to black shade and metallic luster, occurring crystallized, usually in twin crystals formed like cogwheels (wheel ore), additionally huge. It is a sulphide of antimony, lead, and copper.

Bournonite meaning in General Dictionary

(letter.) A mineral of a steel-gray to black color and metallic luster, occurring crystallized, frequently in twin crystals shaped like cogwheels (wheel ore), in addition massive. It really is a sulphide of antimony, lead, and copper.