Minerals within the feldspar family (see above), made up of sodium and calcium. Related Articles: Excursion to the South Devon coast led by Prof John CW Cope (National Museum Wales)Glossary: LatiteGeo Junkets: New Zealand , North Island (Part 2)Along the Chain of Craters Road, Big Island, Hawaii: Part 5The Deccan Traps, India (Part 2): Its geomorphology and stratigraphy« Back to Glossary Index