Purbeck Limestone thin section slide exhibiting densely packed shells of varying fauna. This rock is particularly interesting in thin section; numerous shells from varying organisms such as bivalves and gastropods along with numerous signs of mineral replacement and dissolution offers an opportunity to interpret the complex diagenetic history of the rock. The purbeck limestone was deposited in a fresh to brackish water environment with occasional marine incursions during the upper Jurassic to Lower Cretaceous. The section is made to 30 microns thickness and the glass is 46 x 27 mm in size with a cover slip. Supplied in a protective card sleeve with a label, ideal for microscopy.
