copper glance
- noun
- Specialized
- Early miners often recognized copper glance by its metallic luster and grey color, which indicated its potential as an ore.
Examples
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The geologists discovered a vein of copper glance in the mountain.
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Pure copper glance is a valuable source of copper for the mining industry.
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Early miners often recognized copper glance by its metallic luster and grey color.
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The geologist discovered a large deposit of copper glance.
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Many miners seek copper glance for its valuable properties.
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The geologists discovered a vein of copper glance while surveying the mountain for valuable minerals.
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Pure copper glance is often extracted from the earth and processed for its copper content.
Synonyms
A heavy gray mineral that contains copper and is mined for copper
Surface Forms
Morphology
copper + glance
Although 'copper' is transparent, the usual B1 meaning of 'glance' ('a quick look') does not combine to produce the sense of a mineral or ore. Here 'glance' is a specialized/archaic sense (from German 'glanz' meaning 'lustre') used in mineral names, so a learner who knows the common meanings would not be able to derive 'a copper ore' from the constituents.
Etymology
Copper glance may come from how old miners saw the rock: the dark stone would flash a bright metal glance of copper when light hit it. So the name came to mean a heavy, grey mineral that is a 'source of copper'.