Purbeck limestone – teaching, classroom geology rock, dorset jurassic

All of our Rocks are 100% Genuine Specimens & come with a Certificate of Authenticity

Specimen: Purbeck Limestone

Age: Jurassic

Type: Natural Rock

Location: Portland, Dorset

Size (picture scale cube=1cm):   35 x 22 x 33mm (1.38 x 0.87 x 1.3 inches)

Limestone is mostly composed of calcite and aragonite. A large number of limestone’s are composed from the skeletal fragments of marine organisms. For example: corals or foraminifera. Limestone’s react strongly with acids, and are soluble in water, this means they erode quickly. Cave systems are often formed from limestone rock.

**The image shows the ACTUAL specimen you will receive**

**Please note the following:

1) This items picture will change once we update the listing to a new replacement specimen after this specific item has been sold, this action will cause the picture in your purchase history to also change to the new image.

2) The picture will also change if you’ve had the item in your basket for a while and someone else buys it during that period (having items stored in your basket does not remove that listing from the view of other customers, meaning it will still be active).

3) We would suggest saving, or taking a screenshot of the items image as soon as you have purchased it for your own records of comparison for once the item has been received in the post. We also keep a record of every image we upload.