Granite specimen. The different minerals in granite are shown by the various colours: white and pink areas are feldspars, black areas are tourmaline,

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Granite specimen. The different minerals in granite are shown by the various colours: white and pink areas are feldspars, black areas are tourmaline, while the grey and translucent areas are quartz.

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Size: 4505px × 3879px
Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1700s, 18th, anatomy, angiosperm, angiosperms, artwork, biological, biology, botanical, botany, catesby, century, drawing, flora, flower, flowering, flowers, illustration, magnolia, mark, nature, plant, tree, tripetala, umbrella