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

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The QCC
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Joined: Sat Oct 11, 2014 10:13 pm

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

#1 Post by The QCC » Mon Aug 24, 2015 12:59 pm

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
Olivine  Norite rock
OlivineNoriteRock.jpg (74.12 KiB) Viewed 1149 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
OlivineNorite__5MLX_2x_0200.jpg (183.56 KiB) Viewed 1113 times
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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.
Last edited by The QCC on Fri Aug 28, 2015 8:29 pm, edited 1 time in total.

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

#2 Post by gekko » Mon Aug 24, 2015 11:51 pm

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
Posts: 397
Joined: Sat Oct 11, 2014 10:13 pm

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

#3 Post by The QCC » Tue Aug 25, 2015 12:31 am


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