000 00724nam a2200169 4500
001 0000001730
008 110923
040 _aJGMHQ
090 0 0 _a549.752
_bGRI
100 1 _aGriffiths, J.B.
245 1 0 _aBarytes
_bnon - drilling applications
_cJ.B. Griffiths.
260 _c1987
300 _aiv (unnumbered)
_c30 cm
520 _aIt is very difficult to accurately assess the quantity of barytes which is produced and used for non - drilling applications. Estimates of 0.6 - 065m. tonnes of chemical grade material and 0.5m tonnes of filler grade barytes have been made. The main areas of comsumption are - fillers and extenders, chemicals, glass and ceramics.
650 0 _aMineralogy
_xSurvey
650 0 _aBarite
_xGeology
999 _c22920
_d22920