CATEGORY CODE DESCRIPTION COLOUR cw Cream COLOUR gy Grey Def_Int MD Moderately formed Def_Int SD Strongly formed Grainsize fg Fine Grainsize mg Medium Lith1_Variant ch Chert Lith1_Variant qt Quartz Lithology MS Muscovite Regolith ls Laterite Vein_Mineralisation qt Quartz Vein_Texture bk Buck Vein_Type fd Folded Vein_Type pl Planar