3 Yellowy red 5 YR 4 6 Moderate Mostly Poor Mostly sub Quartz SiO2 red 0.1 0.2 rounded, – Calcite CaCO3 mm, few few larger Olivine (Mg,Fe)2SiO4 larger angular around ones Monticellite Ca(Mg,Fe)2SiO4 0.5mm Sanidine (K,Na)AlSi3O8 Unknown black mineral 4a Orangey Red 5 YR 5 6 Abundant 0.2 0.5 Poor Angular Quartz SiO2 – red mm and sub Calcite CaCO3 rounded Plagioclase NaAlSi3O8 – CaAl2Si2O8 Sanidine (K,Na)AlSi3O8
3 Yellowy red 5 YR 4 6 red Moderate Mostly 0.1 – 0.2 mm, few larger around 0.5mm Poor Mostly sub rounded, few larger angular ones Quartz SiO2 Calcite CaCO3 Olivine (Mg,Fe)2SiO4 Monticellite Ca(Mg,Fe)2SiO4 Sanidine (K,Na)AlSi3O8 Unknown black mineral 4a Orangey Red 5 YR 5 6 red Abundant 0.2 – 0.5 mm Poor Angular and sub rounded Quartz SiO2 Calcite CaCO3 Plagioclase NaAlSi3O8 – CaAl2Si2O8 Sanidine (K,Na)AlSi3O8
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