Primary mineral definitions

primary mineral

in an igneous rock, any mineral that formed during the original solidification (crystallization) of the rock. Primary minerals include both the ...
Found on http://www.britannica.com/eb/a-z/p/112

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primary mineral

Mineral that forms by the combination of elements rather than by alteration of a mineral.
Found on http://www.encyclo.co.uk/local/22291

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