These come from around the world and include attractive examples of malachite, opal, labradorite and green fluorite.

The museum also has a 412g fragment of the Barwell Meteorite. This is the second-to-last recorded meteorite fall in the UK. It is the largest known to have fallen in Britain, landing over a wide area in the village of Barwell, Leicestershire on Christmas Eve 1965. Although it broke up during its descent, it is thought to have originally weighed in at 46 kg. As it flew over Coventry, police received reports about a flying saucer. Many pieces of the meteorite were quickly recovered after they fell. The largest pieces are now in the Natural History Museum in London and in the Leicestershire Museum collection. The Herbert is fortunate to have approximately one-hundredth of the original monster!