41 to 80 of 13190
Mineralogy (Db7529), Calcite on Ham Hill stone
Mineralogy (Db7520), Calcite
Mineralogy (Db7521), Calcite, haematite
Mineralogy (Db249), Quartz, amethystine
Mineralogy (Db251), Quartz var amethyst, banded
Mineralogy (Db252), Quartz var amethyst
Mineralogy (Db254), Quartz var amethyst
Mineralogy (Db255), Quartz var amethyst
Mineralogy (Db256), Quartz var amethyst
41 to 80 of 13190