Porphyrean

• a word derived from Porphyry.
  porphyry

  noun

  a very hard rock, anciently quarried in Egypt, having a dark, purplish-red groundmass containing small crystals of feldspar.

More Suggestions

• porphyrin
• porphyrize
• porphyroid
• porphyry
• zephyrean
• porphyropsin
• porphyrization
• porphyritic
• porphyroblast