000			00419nam a2200157Ia 4500
003			NIELib
008			211019s9999||||xx |||||||||||||| ||und||
020			_a408705736
082			_a553.6 _bWEB
100			_aWebster,Robert _928087
245			_aGems : Their sources, descriptions and identification
260			_bButterworths, _c1962. _aLondon:
300			_a938p.; _c26 cm
650			_aEarth Sciences
942			_2ddc _cSR
999			_c14046 _d14046