Chaos The End Gaping Void Chaotic Equation Of Life By Chance Cloistered Obelisk North,East,West,South West Kennet If Callanish Complete Walkabout According To Einstein I See Religious Fervour The Cross A4361 Quartz Silica Earth Crystal Stukeleys Snake Silbury Hill Si Avebury Circle O2 The Sanctury |
Sy South Circle Se Ground Zero Qz Stardust Calcite Berlin Wall Irish Republican Atrocity The Last Straw Wizard Excaliber Behelzebub Mermaid Swift Dodman Koi Animal Rights Fur Coat Mirror Mirror..... Hot Air Balloons Heart Attack Beatrice Waiting Close To The Equinox She In The beginning |
Calcium Carbonate. CaCo3 Apart from the compounds of SILICON, CALCITE is the commonest mineral. Slightly impure it forms the CHALK, and more discoloured with impurities, LIMESTONE. It is also the material of which most SHELLS and many FOSSILS are formed. CALLANISH PERHAPS? |