Rock Thin Sections
Use of a digital microscope
Dr Peter Copley
Newcastle College
June 2004
Philip Harris (Motic) Microscope
Cost: about £1200(to the Biology dept!)
Includes software
The Microscope
Digital cameraBinoculareyepiece(x10)
ObjectiveLenses(x4,x10,x40,X100 oe)
MainPowerswitch Camera
power
Powerinput
usb
No polarising facilities
Adequate for basic textural images.
Exam papers only use/expect monochromatic
drawings.
Acknowledgement
Thin sections
Geology department
Keele University
Sedimentary Rocks
Desert sandstone (x40)
Keele Sandstone (x40)
Sherwood Sandstone (x40)‘Bunter Sst’
Oolitic Limestone (x40)
Limestone – calcite crystals in shell (x100)
Arkose (x40)
Igneous Rocks
Peridotite (x40)
Olivine
Pyroxene
Porphyrytic Olivine Basalt
Groundmass
Ophitic Texture (x40) Pyroxene
Feldspar
Zoned Olivine crystal (x40)
Spherulitic Pitchstone (x40)
Metamorphic Rocks
Garnet Mica Schist (x100)
Mica
Chiastolite Slate (x40)
Gneiss (x40) Felsic minerals
Mafic minerals
Sillimanite needles (x400)
Kyanite & Biotite (x100)
Alternatively……
What if you cannot afford £1200?
A cheaper alternative!About £40But discontinued in 2002 by Intel.But now available…….
£60 from www.thepcstore.co.uk
Don’t expect the image quality to be as good!!!
Oolitic Limestone (x60)
Porphyritic Basalt (x60)
Ophitic Texture (x60)
PyroxeneFeldspar
Chiastolite Slate (x60)
Will it do???
That’s up to you!
THE END
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