Intro: Purbeck Thornback (D3) Limestone
Purbeck Limestone – Stone Library (shu.ac.uk) Reference D3 NAME Purbeck Thornback TYPE Limestone GEOLOGY Cretaceous. Purbeck Group COUNTY Dorset COLOUR Buff/grey/brown TEXTURE Whole and fragmented shells in fine grained matrix BLOCK SIZE LXBXH (mm) 1000x600x650mm SUITABILITY Internal and external flooring and decorative panels USES (1) Windsor Castle USES (2) McDonalds Institute, Cambridge University USES (3)…