P AGE 22 Coltan Code 8 Coltan XRF Samples not requiring rare earths can be analyzed by fusion with lithium metaboratetetraborate in platinum crucibles with the molten glass cast into a glass disc in platinum crucibles These glass discs are analyzed by XRF Generally low T a 2 O 5 detection limits cant be achieved with this package and the INAA technique is recommended for tantalum Elements Detection Limit INAA Option Elements Detection Limit ppm T a 2 O 5 0003 T a 05 Nb 2 O 5 0003 Th 02 U 3 O 8 0005 U 05 ThO 2 0005 La 05 ZrO 2 0003 Ce 3 Fe 2 O 3 T 001 Nd 5 P 2 O 5 001 Sm 01 SnO 2 0003 Eu 02 Y 2 O 3 0003 Yb 02 WO 3 0003 Lu 005 Price 3500 V olume discounts are available Price First element 1900 Coltan Concentrates 10 Nb 2 O 5 T a 2 O 5 20000 Each additional 100 ChromitePGE Code 8 ChromitePGE Assay XRF Package Chromite assays are usually combined with major oxide analysis as other elements are required for the metallurgical use of the chromite CrFe ratios are very im portant in assigning value to chromite as well as other deleterious elements Elements Detection Limits Elements Detection Limits Price 3500 V olume discounts are available Al 2 O 3 001 MnO 001 CaO 001 Na 2 O 001 Cr 2 O 3 001 NiO 001 Co 3 O 4 001 P 2 O 5 001 PGE ICPOES Option CuO 001 SiO 2 001 Au 2 30000 ppb Fe 2 O 3 001 Ti O 2 001 Pt 5 30000 ppb K 2 O 001 V 2 O 5 001 Pd 5 30000 ppb MgO 001 LOI 001 PGE Option 2100 V olume discounts are available Code 8 Graphite C Graphitic Infrared 005 2500 C T otal 001 1700 CO 2 001 1700 Ash Y ield 2500 Liberation and Grain Size by MLA On request Graphite Industrial Minerals Code 8 Clay Limestone Dolomite Gypsum Price 3500 Suitable for samples containing 500 ppm uranium Al 2 O 3 001 100 Fe 2 O 3 001 100 MnO 001 100 SiO 2 001 100 CaO 001 100 K 2 O 001 100 Na 2 O 001 100 Ti O 2 001 100 Cr 2 O 3 001 100 MgO 001 100 P 2 O 5 0002 100 LOI 1000 o C 001 100 Options Code 4F Sulphate SO 4 03 by Infrared 2300 Code 4F Carbonate CO 2 001 by IR or Coulometry 1700 Code 8 Phosphate Price 3500 Phosphate majors XRF package Al 2 O 3 001 100 Fe 2 O 3 001 100 MnO 001 100 SiO 2 001 100 CaO 001 100 K 2 O 001 100 Na 2 O 001 100 Ti O 2 001 100 Cr 2 O 3 001 100 MgO 001 100 P 2 O 5 0002 100 LOI 1000 o C 001 100 Exploration T echniques for Specific Deposit T ypes Major Oxide Option Elements Detection Limit Al 2 O 3 001 CaO 001 Cr 2 O 3 001 Co 3 O 4 0005 CuO 0005 K 2 O 001 MgO 001 MnO 0001 Na 2 O 001 NiO 0003 SiO 2 001 Ti O 2 001 V 2 O 5 0005 LOI 001 Price 2100 Graphite flakes