Chalcanthite posters & prints

Blue Chalcanthite mineral in matrix Anonymous

Chalcedon mineral Anonymous

Chalk Cliffs near Swanage Leslie Moffat Ward

Chaiten Volcano Erupting Anonymous

Helmet of Chalcidian Type Anonymous

'Calx carbonata' [Ammonite with crystals] James Sowerby

Fossil hunting in Cherry Hinton chalk pit, Cambridgeshire, 1822 Unknown

Chalk Cliffs on Rügen Caspar David Friedrich

Hancock And English Irish, Exultant Tammanyite. Begorra, the Ticket Shpakes For Itself!, 1880 Anonymous

Chaka Anonymous

Acanthus William Morris