Tabashir: an opal of plant origin.

  title={Tabashir: an opal of plant origin.},
  author={Limei H Jones and A A Milne and Jacob Sanders},
  volume={151 3709},
A specimen of tabashir, a variety of opal found in bamboo, contained more water but smaller amounts of alkalis and alkaline earths than most opals. It consisted of particles of about 100 angstroms in diameter, linked together in clumps, which appeared in fractured surfaces as irregularities. The tabashir was amorphous, but its microstructure differed from… CONTINUE READING