P AGE 24 Code 8 REE Assay Rare Earth ElementNiobiumZirconiumYttriumT antalumUraniumThoriumBerylliumPhosphateT in Assay ICPOES and ICPMS Package Rare earths and rare elements are among the most dif ficult to analyze properly It is essential that the sample be ground to 9 5200 mesh to ensure complete fusion of resistate minerals The analysis requires a lithium metaboratetetraborate fusion with subsequent analysis by ICPOE S and ICPMS Mass balance is required as an additional quality control technique and elemental totals of the oxides should be between 98 to 101 In certai n circumstances the presence of small amounts of phosphate will have very severe consequences to Nb 2 O 5 assays by this method with results being very low for Nb 2 O 5 Reanalysis is required for Nb 2 O 5 by fusion XRF In many cases these types of deposits may contain high amounts of fluorite This should be noted on the Reques t for Analysis form or F assays should be requested This will speed up processing as mass balance wont be achieved otherwise and a delay in returning result s will ensue as samples get repeated IN NO CIRCUMST ANCES SHOULD AN ACID DIGESTION OF ANY TYPE BE USED T O EV ALUA TE THE ELEMENTS BELOW AS THEY WILL ONL Y BE P AR TIAL ANAL YSIS All elements are quantified and no exceeding upper limit signs are reported Fusion ICPOES ICPMS Elements and Detection Limits ppm except where noted Price 7000 Al 2 O 3 001 Be 1 Rb 2 La 01 V olume discounts are available CaO 001 Bi 04 Sb 05 Ce 01 Fe 2 O 3 001 Co 1 Sc 1 Pr 005 K 2 O 001 Cr 20 Sn 1 Nd 01 MgO 001 Cs 05 Sr 2 Sm 01 MnO 0001 Cu 10 T a 01 Eu 005 Na 2 O 001 Ga 1 Th 01 Gd 01 P 2 O 5 001 Ge 1 Tl 01 Tb 01 SiO 2 001 Hf 02 U 01 Dy 01 Ti O 2 0001 In 02 V5 Ho 01 LOI 001 Mo 2 W1 Er 01 Ag 05 Nb 1 Y2 Tm 005 As 5 Ni 20 Zn 30 Yb 01 Ba 3 Pb 5 Zr 4 Lu 004 Rare Earth Elements Oil Shale Code 8 Oil Shale These analytical methods are used in exploration programs to determine the anticipated shale oil yield and to better delineate core characteristics Analytical Method Description Pricesample RockEval 2 Pyrolysis T otal organic carbon wt calculated 13100 Nonpyrolysed organic carbon wt calculated T otal mineral carbon wt calculated S1 hydrocarbons evolved at 300C mgg S2 hydrocarbons evolved between 300 and 600C mgg heating at 25Cmin S3 organic carbon dioxide evolved at 300C and up to 390C mgg Production Index Hydrogen Index and Oxygen Index RockEval 6 Pyrolysis Programmed pyrolysis T OC CO 2 26300 Fischer AssayASTM D3904 Free water moisture wt by oven drying 18400 Retort water wt and Ltonne Oil yield wt and Ltonne Gas yield wt and Ltonne Spent shale wt Gas average molecular weight Oil relative density GC Scan GC scan of shale gas to include as a minimum H 2 N 2 CO CO 2 C1 C2 C3 C4 C5 31500 Elemental Analysis T otal carbon sulphur 2300 T otal organic carbon 3700 T otal oxygen 8400 Hydrogen 4000 Nitrogen 4000 Pyritic sulfur 3200 Sulfate sulfur 2500 Mercury 1000 Fluoride 1200 Mineral Identification 19000 Whole Rock Analysis A whole rock analysis is performed to provide chemical analysis of inorganic components 4500 of the rock T race Metal Analysis Near total digestion is performed and a full trace metal scan by ICP shall be conducted to 3500 include at least the following elements Cu Pb Zn Fe W Mo Sn In Bi Cd Sb F Nb T a Th Cs Y As Ag U and V Exploration T echniques for Specific Deposit T ypes If samples contain 03 P 2 O 5 then Nb 2 O 5 and ZrO 2 is recommended to be replaced by fusion XRF as ICPMS results may be very low Code 8 XRF Nb 2 O 5 ZrO 2 Ta 2 O 5 Option 2100 Code 8 F Option 1500