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GEOLOGY - MINERALS & VOLCANOES > QUARTZ > Flashcards

QUARTZ Flashcards

1
Q

quartz characteristics

A
  • translucent or glassy lustre
  • Hardness 7 (cannot scratch quartz with penknife)
  • Conchoidal fracture
  • colourless/clear in ppl;grey/colourless in xpl
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2
Q

quartz occurrence

A

Common and characteristic mineral in acidic (felsic) igneous rocks, e,g rhyolite

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GEOLOGY - MINERALS & VOLCANOES (25 decks)

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