Description
All our rocks are carefully selected for educational study. They come in labelled trays. The trays are normally 3″ x 2″ size depending on the rarity of the specimen. Average specimen size is shown below. These are ideal for classroom teaching and are a size that can be easily passed round the classroom for students to get a feel for each type.
The Coal Measures, noted for the great amounts of coal they contain, account for the major portion of England’s production of coal. They are the uppermost division of the Upper Carboniferous and consist of a repetitive sequence of marine and nonmarine strata.
Approx: 30-40mm
