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Bob Gooday

@bobgooday.bsky.social

Geological Analyst for National Museums Scotland. Minerals, microscopes, maps, mountains, music.

815 Followers  |  600 Following  |  351 Posts  |  Joined: 21.11.2024
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Posts by Bob Gooday (@bobgooday.bsky.social)

That lad's feet and socks are camouflaged so for a second there I thought we had a new Banksy.

28.02.2026 11:32 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

hwfg lads

27.02.2026 12:25 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The Tories (bad) have totally collapsed and been replaced by Reform (fascist). The Labour party (usually fine) have been drifting rightwards courting the racist vote. This has left room for a newly-populist left-wing Green party (awesome) to hoover up all the centre-left votes.

27.02.2026 10:29 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A screengrab from the video showing the silhouette of, I presume, Heathcliff and older Cathy.

A screengrab from the video showing the silhouette of, I presume, Heathcliff and older Cathy.

An outline map of the state of Michigan.

An outline map of the state of Michigan.

Why are you advertising a story set in Yorkshire with a map of Michigan? And why is it the wrong way round?

27.02.2026 10:13 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Are you thinking of Sticky: The Secret Science of Surfaces by Laurie Winkless? I really enjoyed that one.

26.02.2026 14:22 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Bridge or tunnel linking Mull and mainland to be considered The National Islands Plan calls for

Yes! Do it! Bore through the Great Glen Fault! It would be geologically fascinating!

And geomechanically inadvisable.

26.02.2026 10:33 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

going back up the the counter saying "sorry can I get another straw? this one has a fourth hole in it."

25.02.2026 08:11 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

segments, like a pizza

23.02.2026 14:58 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

This one is correct, we're only seeing 'half' of the fossil not a full transect like your first example.

20.02.2026 16:27 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

All conferences should have a whole room and several sessions dedicated to scientific posters.

20.02.2026 14:33 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Really disappointed that the BGS identified this as a crinoid, and didn't tell the press "Oh yeah, that's a Biter. They increase in numbers during times of great peril."

19.02.2026 12:14 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Caver rescued after getting stuck in Highland cave system Assynt Mountain Rescue Team said the uninjured caver was well equipped but needed help returning to the surface.

This is sort of horrifying, but in the way that I know I will never ever end up in that situation because I have a fairly well-calibrated self-preservation instinct.

18.02.2026 17:10 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

ooh fun, I got 44.1 – don't know if everyone gets the same colours but I was only miles off on the inky blue.

18.02.2026 15:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

You share that contented ignorance of the plot with the makers of "Wuthering Heights" (2026).

17.02.2026 14:53 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Congrats! You'll be great.

16.02.2026 22:51 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

summer olympics: GB only win sitting-down sports
winter olympics: how can we win at lying motionless?

13.02.2026 21:22 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Why do all Olympic curling stones come from one small island off Scotland’s coast? | CNN Every single curling stone in the Winter Olympics is crafted from a special granite found only on Ailsa Craig, a small uninhabited island off the coast of Scotland.

In which I spread the good word of peralkaline igneous petrology to the New World, and finally get an American news corporation to print fun facts about aenigmatite. πŸ₯Œ

12.02.2026 09:36 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1

In English chi sounds are more usually pronounced as c or soft ch. Like Christ Ο‡ΟΞΉΟƒΟ„ΟŒΟ‚. So it would be krok-ido-lite or kro-chido-lite (ch as in loch).

11.02.2026 15:00 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Saw her on Cleo Abram's video on curling yesterday!

06.02.2026 16:55 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The Roaring Game: Scotland's curling stone island | National Museums Scotland Curling is a sport native to Scotland, that can be traced back to medieval times. Today, the game involves two teams taking turns to slide heavy, polished

My blog post on Ailsa Craig, curling stones, and the weird minerals that make this rock unique. πŸ₯Œ

06.02.2026 09:59 β€” πŸ‘ 34    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0

The 'is a hotdog a sandwich' equivalent on GeoSky is whether or not ice is a mineral.

06.02.2026 08:16 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It's the same mineral, someone ran some probe analyses and determined it was a 'riebeckitic arfvedsonite' rather than a strict riebeckite.

05.02.2026 18:50 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Google's AI overview calling it a volcanic plug.

Google's AI overview calling it a volcanic plug.

People, but not robots, apparently.

05.02.2026 16:39 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

My professional legacy will be finally getting people to stop calling Ailsa Craig an extinct volcano.

05.02.2026 16:31 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Why Everyone's Wrong About Curling
YouTube video by Cleo Abram Why Everyone's Wrong About Curling

Really cool video on curling and curling stones that I provided some info for. πŸ₯Œ

05.02.2026 16:28 β€” πŸ‘ 13    πŸ” 3    πŸ’¬ 2    πŸ“Œ 0

I was lucky enough to visit the island with Derek when he was here. Where I picked up that hand specimen and the rock that became that thin section.

05.02.2026 16:02 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Microscope image of Ailsa Craig Common Green microgranite thin section. Mostly quartz and cloudy feldspar with patches and clots of very dark green and brown minerals infilling gaps.

Microscope image of Ailsa Craig Common Green microgranite thin section. Mostly quartz and cloudy feldspar with patches and clots of very dark green and brown minerals infilling gaps.

A tiny replica curling stone sitting on top of a sample of the same green spotty rock. They are sitting on a desk under a computer monitor next to other minerals.

A tiny replica curling stone sitting on top of a sample of the same green spotty rock. They are sitting on a desk under a computer monitor next to other minerals.

Olympic curling has to be the sporting highlight of the Scottish geological calendar. πŸ₯Œ All the stones come from Ailsa Craig in the Firth of Clyde. The distinctive black spots are (mostly) the very weird and rare amphibole arfvedsonite. #ThinSectionThursday

05.02.2026 15:49 β€” πŸ‘ 84    πŸ” 20    πŸ’¬ 3    πŸ“Œ 1
Post image Post image Post image Post image

Clickbait YouTuber Reaction Thumbnail starter pack.

04.02.2026 12:44 β€” πŸ‘ 193    πŸ” 37    πŸ’¬ 7    πŸ“Œ 1
Old bloke holding two chunks of beige-coloured stuff. One is weathered black except for a recently broken surface; the other is beige all over. The bloke looks far too cheerful for the weather, which is clearly shite.

Old bloke holding two chunks of beige-coloured stuff. One is weathered black except for a recently broken surface; the other is beige all over. The bloke looks far too cheerful for the weather, which is clearly shite.

One for my geology [ex-]colleagues. Left hand: shortbread made by a retired industrial chemist. Right hand: Millstone grit, probably from the Grassington grit or Upper Howgate Edge grit formation. The photographer (another geologist) was entertained by the similar appearance.

03.02.2026 08:58 β€” πŸ‘ 19    πŸ” 1    πŸ’¬ 3    πŸ“Œ 0

great band, absolutely generational songwriters, one of the few songs I actively hate.

30.01.2026 11:38 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0