Black Background Collection (page 15)

Rutile
A specimen of the mineral rutile (titanium oxide) which is a major ore of the metal titanium. This specimen is from Graves Mountain, Lincoln County, Georgia. USA

Galena
A specimen of the mineral galena (lead sulphide) which is a major ore of lead as well as silver. This specimen is from Wanlockhead mine Dumfriesshire, Scotland

Dendroaspis angusticeps, green mamba
Photograph of the skull of a green mamba, showing the snakes upper jaw fangs

Anthias anthias, blunt headed holy fish
Specimen collected on Captain James Cooks first voyage, 1768-1771 and labelled Perca imperator

Paranthodon africanus
A fossil of a section of left maxilla that once belonged to the dinosaur Paranthodon africanus. The specimen dates back to the Lower Cretaceous, discovered in Kirkwood Formation, Dassies Clip

Dryosaurus femur & vertebra
Right femur, length 196 mm, and caudal vertebra from a dryosaurus which lived during the Upper Jurassic, 155 to 140 million years ago in present day Tanzania, East africa

Lonsdaleia, coral
Shown here is the Carboniferous coral, Lonsdaleia. Corals comprise a soft bodied animal called a polyp. Each polyp inhabits a calcareous skeleton called a corallum

Slate
Cambrian slate from North Wales. Slate is metamorphosed shale

Chalk
A piece of flintless white chalk from the Upper Chalk, Flamborough, Yorks. Chalk is a sedimentary rock formed in deep seas

Hyolithes, primitive mollusc
Shown here is Hyolithes, a Cambrian primitive mollusc. Hyolithes had an oval or cone-shaped, elongated shell and often occured in clusters along bedding planes of Cambrian shale

Sandstones
A collection if sandstones showing colour variations. Clockwise from the left: green Ightham Stone, brown St Bees, beige L Coal Measures from Derbyshire and striped from Stirling

Quartzite

Marpolia spissa, fossilised algae
A fossilised type of green algae, possible filamentous cyanobacteria (Marpolia spissa), approximately 12 mm in height. This specimen was discovered in the Middle Cambrian, Burgess Shale, Canada

Artificial bismuth crystals
A specimen of man-made bismuth crystals

Fossil branches of Calamites
The fossil branches of Calamites sp. bearing leaves and cones; Palaeostachya and Asterophyllites. Specimen discovered in Wales, dating back to the Late Carboniferous period

Coal, from the late carboniferous
Coal is formed from fossil plants. The regular pattern on the surface of this 14 cm long piece is the impression of the bark of a fossil tree; Lepidodendron

Turquoise vein in shale
Turquoise (hydrated copper aluminum phosphate) vein in shale, from Victoria, Australia. Turquoise is perhaps the most valuable non-transparent mineral

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