All of our Minerals & Crystals are 100% Genuine Specimens & come with a Certificate of Authenticity!
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, It can be used as a fertilizer, is the main constituent in many forms of plaster and in blackboard chalk, and is widely mined.
Gypsum in Matrix, from Watchet, Somerset, UKSIMILAR TO SEEN: The image shows an example of the single specimen you will receive. This will be picked from our stock box graded and with a size within the minimum and maximum size range indicated. It will not be the exact specimen in the photo, the colours, shape, size and style may vary as with any natural item.