Dried Spices On Black Slate
Science Photo Library
Slate Roofing #1
Patrick Landmann/science Photo Library
Slate Islands
Planetobserver/science Photo Library
Slate Layers
Steve Percival/science Photo Library
Devonian Slates #8
Dr Keith Wheeler/science Photo Library
Devonian Slates #3
Dr Keith Wheeler/science Photo Library
Devonian Slates #5
Dr Keith Wheeler/science Photo Library
Devonian Slates #7
Dr Keith Wheeler/science Photo Library
Devonian Slates #11
Dr Keith Wheeler/science Photo Library
View Of The Penrhyn Slate Quarry #1
Martin Bond/science Photo Library
Terraces Of Penrhyn Slate Quarry
Martin Bond/science Photo Library
Devonian Slates
Dr Keith Wheeler/science Photo Library
Devonian Slates #2
Dr Keith Wheeler/science Photo Library
Devonian Slates #4
Dr Keith Wheeler/science Photo Library
Devonian Slates #9
Dr Keith Wheeler/science Photo Library
Devonian Slates #10
Dr Keith Wheeler/science Photo Library
Devonian Slates #12
Dr Keith Wheeler/science Photo Library
Penrhyn Slate Quarry Showing Terraces
Martin Bond/science Photo Library
View Of The Penrhyn Slate Quarry
Martin Bond/science Photo Library
Terraces Of Penrhyn Slate Quarry With Dumper Truck
Martin Bond/science Photo Library
Devonian Slates #1
Dr Keith Wheeler/science Photo Library
Devonian Slates #6
Dr Keith Wheeler/science Photo Library
Tourmaline Mica In Slate
Jan Hinsch/science Photo Library
Rock Pools
Dr Keith Wheeler/science Photo Library
Slate-red Ornamental Tree Spider In Camouflage
K Jayaram/science Photo Library
Slate-red Ornamental Tree Spider In Camouflage #1
K Jayaram/science Photo Library
Slate Pencil Urchin
Natural History Museum, London
Slate Pencil Urchin #1
Natural History Museum, London
Slate Quarry Waste
Martyn F. Chillmaid/science Photo Library
Slate Quarrying #2
Science Photo Library
Slate Mining #1
Patrick Landmann/science Photo Library
Slate Sample
Patrick Landmann/science Photo Library
Slate Mining #2
Patrick Landmann/science Photo Library
Slate Mining #13
Patrick Landmann/science Photo Library
Slate Quarrying #1
Science Photo Library
Slate
Science Stock Photography/science Photo Library
Slate Pencil Sea Urchin
Lionel, Tim & Alistair/science Photo Library
Slate Roof Tiles
Wladimir Bulgar/science Photo Library
Slate #1
Science Stock Photography/science Photo Library
Slate #2
Science Stock Photography/science Photo Library
Slate #3
Science Stock Photography/science Photo Library
Slate Mining
Patrick Landmann/science Photo Library
Slate Roofing
Patrick Landmann/science Photo Library
Slate Quarry
Michael Marten/science Photo Library
Slate Mining #3
Patrick Landmann/science Photo Library
Slate Mining #5
Patrick Landmann/science Photo Library
Slate Mining #6
Patrick Landmann/science Photo Library
Slate Mining #7
Patrick Landmann/science Photo Library
Slate Mining #8
Patrick Landmann/science Photo Library
Slate Mining #9
Patrick Landmann/science Photo Library
Slate Mining #11
Patrick Landmann/science Photo Library
Slate Mining #14
Patrick Landmann/science Photo Library
Slate Roofing #2
Patrick Landmann/science Photo Library
Slate Quarrying
Science Photo Library
Slate
Natural History Museum, London/science Photo Library
Slate Mining #4
Patrick Landmann/science Photo Library
Slate Mining #10
Patrick Landmann/science Photo Library
Slate Mining #12
Patrick Landmann/science Photo Library
Waste Quarry Slate
Martyn F. Chillmaid/science Photo Library
Devonian Slate Coastline
Dr Keith Wheeler/science Photo Library
Devonian Slates And Shales
Dr Keith Wheeler/science Photo Library
Stone Slate
Adam Hart-davis/science Photo Library
Devonian Slate Coastline #1
Dr Keith Wheeler/science Photo Library
Andelusite Crystals In Slate
Dr Jeremy Burgess/science Photo Library
Devonian Slate Strata
Dr Keith Wheeler/science Photo Library
Dried Spices On Black Slate #1
Science Photo Library
Welsh Slate
Cordelia Molloy/science Photo Library
Eroded Devonian Slate
Dr Keith Wheeler/science Photo Library
Disused Slate Quarry
Cordelia Molloy/science Photo Library
Garden View Rhs Rosemoor
Geoff Kidd/science Photo Library
Cubic Zirconia
Lawrence Lawry/science Photo Library
Sundial
Dr Keith Wheeler/science Photo Library