OCR Geology A level - MINERALS 0.0 / 5 ? GeologyMineralsA2/A-levelOCR Created by: pinkpiggy12Created on: 20-06-18 10:00 Minerals Naturally occuring substance with a fixed chemical structure and formula. 1 of 6 Rock An aggregate of one or more minerals. 2 of 6 Metalic lustre Shiny like metal 3 of 6 Earthy lustre Dull 4 of 6 Adamantine lustre Shine like diamonds 5 of 6 QUARTZ Iregular shape, Colour varies (White/grey), Hardness of 7, No cleavage, Virtreous/ Irregular lustre, 6 of 6
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