rockjock_mixtures: RockJock synthetic mixtures
In powdR: Full Pattern Summation of X-Ray Powder Diffraction Data

Description Usage Format Author(s) References

A multiXY list containing 8 XRPD measurements (Cu K-alpha radiation) of synthetic mixtures that can be used to assess accuracy of quantitative analysis from the fps() and afps() functions. The mixtures contain various amounts of quartz (QUARTZ standard of the rockjock library), K-feldspar (ORDERED_MICROCLINE), plagioclase (LABRADORITE), kaolinite (KAOLINITE_DRY_BRANCH), dioctahedral smectite (MONTMORILLIONITE_WYO), illite (ILLITE_1M_RM30) and corundum (CORUNDUM).

1	rockjock_mixtures

A multiXY list of 8 components, each comprised of two columns. Column tth specifies the 2theta axis and counts specifies the count intensities. The mixtures have to following compositions that are also tabulated in the rockjock_weights data.

Mix1: Contains: 4 % K-feldspar, 20 % plagioclase, 12 % kaolinite, 36 % dioctahedral smectite, 8 % illite and 20 % corundum.
Mix2: Contains: 4 % quartz, 8 % K-feldspar, 36 % plagioclase, 20 % kaolinite, 12 % illite and 20 % corundum.
Mix3: Contains: 8 % quartz, 12 % K-feldspar, 36 % kaolinite, 4 % dioctahedral smectite, 20 % illite and 20 % corundum.
Mix4: Contains: 12 % quartz, 20 % K-feldspar, 4 % plagioclase, 8 % dioctahedral smectite, 36 % illite and 20 % corundum.
Mix5: Contains: 20 % quartz, 36 % K-feldspar, 8 % plagioclase, 4 % kaolinite, 12 % dioctahedral smectite and 20 % corundum.
Mix6: Contains: 36 % quartz, 12 % plagioclase, 8 % kaolinite, 20 % dioctahedral smectite, 4 % illite and 20 % corundum.
Mix7: Contains: 8 % K-feldspar, 40 % plagioclase, 4 % kaolinite, 12 % dioctahedral smectite, 16 % illite and 20 % corundum.
Mix8: Contains: 8 % quartz, 4 % K-feldspar, 4 % plagioclase, 24 % dioctahedral smectite, 40 % illite and 20 % corundum.