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Arsenic is a highly poisonous metallic element (As). This specimen is held at the Natural History Museum, London
Boulangerite comprises of (lead antimony sulphide) and is characterized by fine, fibrous crystals. This specimen is from the Natural History Museum, London
Snake skin
Ripple-marked sandstoneTide formed, symmetrical, ripple marks shown here in this specimen of fossilised in sandstone
Quercus sp. crouch oakAlso known as Addlestone Oak or Queens Oak. In the 14th century Wycliffe preached under this oak. Queen Elizabeth I is said to have feasted under it. Photographed by Pat Hart, Summer 2003
Sugar grainsA scanning electron microscope (SEM) image of sugar grains, artificially coloured by computer
Porcellio sccaber, woodlouseScanning electron microscope (SEM) image showing all the units that make up the compound eye of a woodlouse
Textures of different chondrule types in the Etihudna (L4) ordinary chondrite (field of view 4mm)
OpalBoulder or nodular opal in a sandstone matrix from Queensland, Australia. Opals are not truely crystalline and are therefore mineraloids. They comprise of (hydrated silica glass)
Chromite (iron chromium oxide) is the ore of chromium and has an attractive shiny surface. It is used in the manufacture of stainless steel and in metallic paints
Observing structure of rockLooking at fresh granite under a microscope to study structure, granular composition can clearly be seen
Sigillaria rugosa, fossil club mossThis section of a club moss trunk displays leaf scars where leaves grew straight out from. Club mosses could grow up to heights of 30 metres
Glossopteris, fossil plantShown here is Glossopteris, a fossil fern plant with tongue-shaped leaves with a net-like arrangement of veins
Farm OutbuildingA study in texture, in the walls of an outbuilding on a Welsh farm. Date: 1950s
Jan BrueghelJAN BRUEGHEL, the Flemish landscape painter, is known as Velvet Brueghel for the texture of his paintwork
