1. Rock Thin Sections Use of a digital microscope Dr Peter Copley Newcastle College June 2004

2. Philip Harris (Motic) Microscope Cost: about £1200 (to the Biology dept!) Includes software

3. The Microscope

4. Digital camera Binocular eyepiece (x10) Objective Lenses (x4,x10,x40, X100 oe)

5. Main Power switch Camera power Power input usb

6. No polarising facilities Adequate for basic textural images. Exam papers only use/expect monochromatic drawings.

7. Acknowledgement Thin sections Geology department Keele University

8. Sedimentary Rocks

9. Desert sandstone (x40)

10. Keele Sandstone (x40)

11. Sherwood Sandstone (x40) ‘Bunter Sst’

12. Oolitic Limestone (x40)

13. Limestone – calcite crystals in shell (x100)

14. Arkose (x40)

15. Igneous Rocks

16. Peridotite (x40) Olivine Pyroxene

17. Porphyrytic Olivine Basalt Groundmass

18. Ophitic Texture (x40) Pyroxene Feldspar

19. Zoned Olivine crystal (x40)

20. Spherulitic Pitchstone (x40)

21. Metamorphic Rocks

22. Garnet Mica Schist (x100) Mica

23. Chiastolite Slate (x40)

24. Gneiss (x40)Felsic minerals Mafic minerals

25. Sillimanite needles (x400)

26. Kyanite & Biotite (x100)

27. Alternatively……

28. What if you cannot afford £1200?

29. A cheaper alternative! About £40 But discontinued in 2002 by Intel. But now available…….

30. £60 from www.thepcstore.co.uk

31. Don’t expect the image quality to be as good!!!

32. Oolitic Limestone (x60)

33. Porphyritic Basalt (x60)

34. Ophitic Texture (x60) Pyroxene Feldspar

35. Chiastolite Slate (x60)

36. Will it do??? That’s up to you!

37. THE END