Macro A shard of schist

A shard of schist · 12:59 AM

A shard of schist by RobGeraghty, on Flickr

A lot of the West Coast region of New Zealand's South Island appears to be made up of metamorphic rocks like schist and gneiss, formed by the Pacific Plate being subducted under the Australian Plate. The rocks have been forced upward, tilted, folded and crushed. You can see how this rock contains shiny crystalline layers formed by extreme heat and pressure.

**kiwi_jono** · 10-05-2019, 01:03 AM - **1 Like**

Nice shot!

RobG · 10-05-2019, 01:46 AM - **1 Like**

Originally posted by kiwi_jono

Nice shot!

Thank you!

---------- Post added 05-10-19 at 06:58 PM ----------

Moss forest and lichen fields by RobGeraghty, on Flickr

**foxandcrow** · 10-05-2019, 07:19 AM

Great shot, title and explanation.

RobG · 10-05-2019, 09:09 AM

Originally posted by foxandcrow

Great shot, title and explanation.

Thanks! The first schist I saw was just next to the Colorado river at the bottom of the Grand Canyon.

**PJ1** · 10-05-2019, 03:09 PM

That's right, blame Australia. The pic demonstrates the tiny crystalline structure that forms under metamorphosis. We have similar schists around home. They don't flake (as in you can't make decent stone tools with it).

**ToddK** · 10-05-2019, 04:30 PM

Nice photos and a good geology lesson for a bonus

RobG · 10-05-2019, 05:27 PM

Originally posted by PJ1

That's right, blame Australia. The pic demonstrates the tiny crystalline structure that forms under metamorphosis. We have similar schists around home. They don't flake (as in you can't make decent stone tools with it).

Well it's not like I caused Australia to subduct the Pacific. It's been going on for a while.

I haven't noticed schists here! I'll have to pay more attention . The schist in the Grand Canyon was almost pure mica. You could break off tiny transparent layers, but you certainly couldn't make anything useful from it.

Originally posted by ToddK

Nice photos and a good geology lesson for a bonus

Thanks Todd!

Kozlok · 10-05-2019, 06:21 PM

I do think I like the second one better. The bits of lichen add immense interest.

RobG · 10-05-2019, 06:31 PM

Originally posted by Kozlok

I do think I like the second one better. The bits of lichen add immense interest.

Thanks! I like the colour of the second image. The first was all about the rock.

**TedH42** · 10-05-2019, 07:47 PM - **1 Like**

I'm liking the second shot a lot. Nice rock features, colors, and just the right light angle. Lichen is a fascinating organism. Thanks.

RobG · 10-05-2019, 07:59 PM

Originally posted by TedH42

I'm liking the second shot a lot. Nice rock features, colors, and just the right light angle. Lichen is a fascinating organism. Thanks.

Oh, I'm fascinated by the persistence of lichens and mosses too!

Persistence by RobGeraghty, on Flickr

**TedH42** · 10-05-2019, 09:11 PM - **1 Like**

Oh, boy! Now you're going extravagant! Quite a lichen field there. Quite colorful.

Kozlok · 10-05-2019, 09:19 PM - **1 Like**

That last one looks like a tilt-shift photo of a forest.

RobG · 10-06-2019, 12:27 AM

Originally posted by TedH42

Oh, boy! Now you're going extravagant! Quite a lichen field there. Quite colorful.

Originally posted by Kozlok

That last one looks like a tilt-shift photo of a forest.

Thank you!

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10-05-2019, 01:03 AM - 1 Like	#2
kiwi_jono Loyal Site Supporter Join Date: Dec 2009 Location: Christchurch, New Zealand Photos: Gallery \| Albums Posts: 2,437	Nice shot!

10-05-2019, 01:46 AM - 1 Like	#3
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,891 Original Poster	Originally posted by kiwi_jono Nice shot! Thank you! ---------- Post added 05-10-19 at 06:58 PM ---------- Moss forest and lichen fields by RobGeraghty, on Flickr

10-05-2019, 07:19 AM	#4
foxandcrow Site Supporter Join Date: Sep 2017 Location: Colorado Posts: 1,994	Great shot, title and explanation.

10-05-2019, 09:09 AM	#5
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,891 Original Poster	Originally posted by foxandcrow Great shot, title and explanation. Thanks! The first schist I saw was just next to the Colorado river at the bottom of the Grand Canyon.

10-05-2019, 03:09 PM	#6
PJ1 Loyal Site Supporter Join Date: Jul 2012 Location: Toowoomba, Australia Photos: Gallery \| Albums Posts: 5,484	That's right, blame Australia. The pic demonstrates the tiny crystalline structure that forms under metamorphosis. We have similar schists around home. They don't flake (as in you can't make decent stone tools with it).

10-05-2019, 04:30 PM	#7
ToddK Loyal Site Supporter Join Date: Jan 2010 Location: Texas Hill Country Photos: Gallery Posts: 11,532	Nice photos and a good geology lesson for a bonus

10-05-2019, 05:27 PM	#8
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,891 Original Poster	Originally posted by PJ1 That's right, blame Australia. The pic demonstrates the tiny crystalline structure that forms under metamorphosis. We have similar schists around home. They don't flake (as in you can't make decent stone tools with it). Well it's not like I caused Australia to subduct the Pacific. It's been going on for a while. I haven't noticed schists here! I'll have to pay more attention . The schist in the Grand Canyon was almost pure mica. You could break off tiny transparent layers, but you certainly couldn't make anything useful from it. Originally posted by ToddK Nice photos and a good geology lesson for a bonus Thanks Todd!

10-05-2019, 06:21 PM	#9
Kozlok Pentaxian Join Date: Jun 2012 Location: Albuquerque Photos: Gallery Posts: 3,148	I do think I like the second one better. The bits of lichen add immense interest.

10-05-2019, 06:31 PM	#10
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,891 Original Poster	Originally posted by Kozlok I do think I like the second one better. The bits of lichen add immense interest. Thanks! I like the colour of the second image. The first was all about the rock.

10-05-2019, 07:47 PM - 1 Like	#11
TedH42 F/8 & Somewhere Join Date: Dec 2011 Location: Colorado Photos: Gallery Posts: 1,412	I'm liking the second shot a lot. Nice rock features, colors, and just the right light angle. Lichen is a fascinating organism. Thanks.

10-05-2019, 07:59 PM	#12
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,891 Original Poster	Originally posted by TedH42 I'm liking the second shot a lot. Nice rock features, colors, and just the right light angle. Lichen is a fascinating organism. Thanks. Oh, I'm fascinated by the persistence of lichens and mosses too! Persistence by RobGeraghty, on Flickr

10-05-2019, 09:11 PM - 1 Like	#13
TedH42 F/8 & Somewhere Join Date: Dec 2011 Location: Colorado Photos: Gallery Posts: 1,412	Oh, boy! Now you're going extravagant! Quite a lichen field there. Quite colorful.

10-05-2019, 09:19 PM - 1 Like	#14
Kozlok Pentaxian Join Date: Jun 2012 Location: Albuquerque Photos: Gallery Posts: 3,148	That last one looks like a tilt-shift photo of a forest.

10-06-2019, 12:27 AM	#15
RobG Otis Memorial Pentaxian Join Date: Dec 2009 Location: Canberra Photos: Gallery \| Albums Posts: 8,891 Original Poster	Originally posted by TedH42 Oh, boy! Now you're going extravagant! Quite a lichen field there. Quite colorful. Originally posted by Kozlok That last one looks like a tilt-shift photo of a forest. Thank you!