Noun:

অতি কঠিন বিবিধবর্ণ শিলাবিশেষ,

porphyry's Usage Examples:

composed of a granodiorite porphyry surrounded by a more aerially-extensive exposure of granite porphyry.

The granite porphyry represents the evolved upper.

Both imperial or Tyrian purple, a dye for cloth, and the purple stone porphyry were rare and expensive, and at times reserved for imperial use.

type of rock that has a porphyritic texture are porphyry, though not all porphyritic rocks are porphyries.

purple-crowned lorikeet (Parvipsitta porphyrocephala), (also known as the porphyry-crowned lorikeet, zit parrot, blue-crowned lorikeet, purple-capped lorikeet.

Needle Rock is an intrusive plug of monzonite porphyry cropping out 3.

Synonyms:

porphyritic rock; igneous rock; groundmass;