Table T4. Abbreviations used in the alteration and vein/structure logs.

Common colors			Primary and secondary minerals*		Apparent vein orientation
Color name	Abbreviation	Munsell reference	Mineral	Abbreviation	Orientation	Abbreviation
Black	Blk	10YR 2/1	Celadonite	Cel	Inclined	INC
White	Wht	2.5Y N8	Calcium carbonate	CO3	Curved	CUR
Brown	Brn	10YR 4/3	Iron oxyhydroxides	FeOx	Horizontal	H
Yellowish brown	Yel-Brn	10YR 5/8	Olivine	Ol	Vertical	V
Dark brown	Dk Brn	10YR 3/3	Plagioclase	Pl	Subhorizontal	SH
Olive	Olv	5Y 4/3	Pyrite	Py	Subvertical	SV
Green	Grn	10GY 4/4	Saponite	Sap
Yellowish green	Yel-Grn	10Y 7/6	Smectite	Sm	Other
Dark green	Dk Grn	10GY 3/2	Zeolite	Zeol
Dusky green	Grn-Gr	5G 3/2	Manganese oxyhydroxides	MnOx	<<	Much less than
Grayish green	Gr-Grn	5G 5/2	Chalcedony	Chal	HF	Hairline fracture
Gray	Gr	10Y 5/1	Quartz	Qtz	->	Altered to
Dark gray	Dk Gr	10YR 4/1	Pyroxene	Pyx	tr	Trace (<1%)
Dark yellowish brown	DYB	10YR 4/6			Sed.	Sediment
Light yellowish brown	LYB	10YR 6/4			App.	Apparent
Pink	Pink	10R 8/4			Ident.	Identifier

Note: * = other mineral names and colors are spelled out.