Olivine Norite is the 4th thin section in the Gekko Rocks Series

[The QCC]

Olivine  Norite is an igneous rock from Rogaland , Anorthosite Province,  Norway formed during the Pre-Cambrian eras. Which part of the pre-cambrian is anyone's guess.
The Olivine Norite thin section is relatively large. Approx 23mm x 20mm. This is the rock the slide from which the slide was made.

Olivine  Norite rock

OlivineNoriteRock.jpg (74.12 KiB) Viewed 2601 times

Quickly switch between photos 2, 3 & 4 to see how colour changes the perceived size and shape of an object.
Please click on the photo to see the presentation.

OlivineNorite__5MLX_2x_0200.jpg (183.56 KiB) Viewed 2565 times

[/url]

P.S.
The more observant microscopists may ask "why do you only use the 2x, 4x and 10x objectives?"
For two reasons. The 2x, 4x and 10x are ~/0 (no cover glass) objectives and I do not put cover slips on my thin section slides.
Why? Because my tools are not precise enough to achieve a 30-50 micron thin section and I finish the slide off by hand. I may do further find hand sanding and polishing if the microscope images look too dense.

[gekko]

Thank you: very nice work and pictures. Do those parallel lines in the various images represent different layers of different elements that were deposited over time (excuse my obvious ignorance)?

[The QCC]

The parallel lines are called twinning.
University of Toronto explains twinning better than I can do.