| SiO2_pct_AES_Fuse |
Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after LiBO2 or LiBO2-Li2B4O7 fusion |
| SiO2_pct_AES_HF |
Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after HF-HCl-HNO3-HClO4 digestion |
| SiO2_pct_AES_ST |
Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after Na2O2 sinter digestion |
| SiO2_pct_CM_Fuse |
Silicon, as silicon dioxide, in weight percent, by spectrophotometry after NaOH or LiBO2-Li2B4O7 fusion |
| SiO2_pct_ES_Q |
Silicon, as silicon dioxide, in weight percent, by quantitative direct-current arc emission spectrography |
| SiO2_pct_ES_SQ |
Silicon, as silicon dioxide, in weight percent, by semi-quantitative visual 6-step or direct reader direct-current arc emission spectrography |
| SiO2_pct_GV_Fuse |
Silicon, as silicon dioxide, in weight percent, by gravimetric classic or standard rock analysis after fusion digestion |
| SiO2_pct_MS_ST_REE |
Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after Na2O2 sinter digestion, REE package |
| SiO2_pct_WDX_Fuse |
Silicon, as silicon dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy after LiBO2 or LiBO2-Li2B4O7 fusion |
