Refining can be done using the blacksmith in reboldeaux. The system is simplistic, 4 of a mineral are needed to make a refined mineral and 3 of a refined mineral to make a pure mineral. Pure versions are worth more vis than unrefined versions however it is ill-advised, since the quantity of minerals used to make these refined and pure minerals actually means you end up losing money (the exception is Talt).

The data below is from the Blacksmith in Reboldeaux. Refinement of cloth can be performed in Coimbra, but there is no data as of yet for it. Data taken with permission from noodles on the SOTNW forums.

refinement guide
* indicates best value for money
u = unrefined, r = refined, p = pure

Minerals

Name	Unrefined	Refined	Pure
Talt	18viz	x4u 90viz (18 Profit)	x3r 300viz (84 Profit)*
Ionium	31viz*	x4u 120viz (4 Loss)	x3r 350viz (22 Loss)
Quartz	43viz*	x4u 165viz (7 Loss)	x3r 400viz (116 Loss)
Aidanium	56viz*	x4u 180viz (64 Loss)	x3r 450viz (22 Loss)
Etretanium	75viz*	x4u 195viz (105 Loss)	x3r 500viz (400 Loss)

Metals
Copper piece: 12 * Bulk Coal: 37 * Iron Piece: 25 *

Steel Piece (1x Iron, 1x Bulk Coal): 50viz (Loss 12)

Cast Iron (4x Iron, 4x Bulk Coal, 1x Copper Piece): 198viz (Loss 10)

Composite Steel (5x Iron, 6x Bulk Coal): 300viz (Loss 47)

Item worth (from best value for money refinement)
talt (pure): 25
ionium (unrefined): 31
quartz (unrefined): 43
aidanium (unrefined): 56
etretanium (unrefined): 75
copper piece (unrefined): 12
bulk coal (unrefined): 37
iron piece (unrefined): 25




Color for Copper E69549
Color for Bulk Coal 784646
Color for iron piece 5D8DA8