Grainsize (phi units)	No Offset		Qualitative Core-log Offset		Quantitative Core-log Offset
	RMSE	MAE	RMSE	MAE	RMSE	MAE
MVR	1.41	0.90	1.19	0.74	1.12	0.70
SVRM	1.14	0.41	0.97	0.24	0.89	0.23
SVRM w/HPT	1.29	1.17	1.23	1.07	1.23	1.06
XGBoost	0.76	0.21	0.70	0.18	0.68	0.15
XGBoost w/HPT	0.74	0.19	0.67	0.14	0.67	0.14
Catboost	0.92	0.42	0.80	0.32	0.76	0.26
Catboost w/HPT	0.75	0.23	0.68	0.17	0.68	0.17
DNN	1.08	0.38	0.92	0.26	0.89	0.28
Median	1.00	0.40	0.86	0.25	0.82	0.24
Porosity (porosity units, %)	No Offset		Qualitative Core-log Offset		Quantitative Core-log Offset
	RMSE	MAE	RMSE	MAE	RMSE	MAE
MVR	2.99	1.60	2.78	1.45	2.46	1.43
SVRM	2.15	0.60	1.80	0.43	1.79	0.51
SVRM w/HPT	1.93	1.07	1.84	0.97	1.87	0.87
XGBoost	1.64	0.76	2.12	0.65	1.55	0.64
XGBoost w/HPT	1.60	0.84	1.88	0.64	1.61	0.52
Catboost	1.69	0.76	1.77	0.67	1.33	0.54
Catboost w/HPT	1.80	0.79	1.83	0.63	1.41	0.52
DNN	N/A	N/A	N/A	N/A	N/A	N/A
Median	1.80	0.79	1.84	0.65	1.61	0.54
Multi-XRF (combined wt. % Error)	No Offset		Qualitative Core-log Offset		Quantitative Core-log Offset
	RMSE	MAE	RMSE	MAE	RMSE	MAE
MVR	1.33	0.67	1.27	0.61	1.25	0.59
SVRM	1.26	0.46	1.16	0.40	1.12	0.41
SVRM w/HPT	N/A	N/A	N/A	N/A	N/A	N/A
XGBoost	1.11	0.52	1.06	0.44	1.09	0.45
XGBoost w/HPT	N/A	N/A	N/A	N/A	N/A	N/A
Catboost	1.11	0.52	1.06	0.43	1.00	0.40
Catboost w/HPT	1.14	0.49	1.07	0.42	1.02	0.39
DNN	1.35	0.49	1.24	0.44	1.21	0.40
Median	1.20	0.50	1.11	0.44	1.11	0.41