CATEGORY	CODE	DESCRIPTION

Alt_Int	SA	Strongly altered
Alt_Min	wm	White mica
Alt_Type	PV	Pervasive
Colour	bk	Black
Colour	br	Brown
Colour	gg	Green grey
Colour	gy	Grey
Colour	wh	White
Def_Int	SD	Strongly deformed
Grainsize	cg	Coarse grained
Grainsize	fg	Fine grained
Grainsize	mg	Medium grained
Lithology	D	
Lithology	E	Extrusive
Lithology	M	Metamorphic (unknown protolith)
Lithology	S	Sediment
Lithology	VN	Vein
Vein_Min	ch	Chert
Vein_Min	qt	Quartz
Vein_Min	fe	Ferruginous
Vein_Min	hm	Haematite
Vein_Text	BK	Buck
Vein_Type	PL	Planar
Vein_Type	SG	Sigmoidal