#puddingstone

[tracobuttons]

Puddingstone Eridian!

So, fun fact:

Hertfordshire, the county I live in, has a rare geological formation where smaller stones and pebbles are stuck together by a sand and silica cement. It’s called a Puddingstone since the pebbles and stones look like raisins and currents in a sponge cake. I have one at home so I drew an Eridian based on it.

[desimonewayland]

A fine puddingstone snuff bottle with a matching dish, 1750-1860

Bonham's

[eisenkrahe]

James's rock probably looks something like this.

[houseofcatwic]

Puddingstone - Pudding is one of the oldest rocks from the Ice Age era. Actually, this one’s like a mosaic, with naturally stuck ocean stones and quartz.

[johnschneiderblog]

Too deep, too cold, too heavy

On our first beach walk of the year Thursday I spotted this puddingstone stunner in two feet of water.

But it's still basically late winter on northern Lake Huron, hardly the season for wading into the water. Plus, we were a couple hundred yards down the beach - a long walk with a boulder on my shoulder.

In the unlikely event that the shifting sands don't bury the stone, maybe I'll retrieve it with our kayak once things warm up. Or, maybe this photo will have to suffice.

[drrockclub]

Are pudding stones JUST conglomerates with a drastic difference in the xenoliths and matrix or are they also metamorphosed? I own 2 pudding stones from Michigan as well as a few regular conglomerates but my geology professor didn't explain pudding stones well, here's a photo of them1

Hi abirdsfreedom,

That is a nice collection! You are correct in your definition of puddingstone, however conglomerate does not need to be metamorphosed to be described as puddingstone.

Below I provide you with definition quote for puddingstone from the Glossary of Geology (5th edition, 2011) with hope that it helps with further explanation of this rock:

‘(a) A popular name applied chiefly in Great Britain to a conglomerate consisting of well-rounded pebbles whose colours are in such marked contrast with the abundant fine-grained matrix or cement that the rock suggests an old-fashioned plum pudding. Example: the Hertfordshire Puddingstone (lower Eocene) in England, composed of black or brown flint pebbles cemented by white silica, with or without brown iron hydroxide. Syn: plum-pudding stone. (b) A siliceous rock cut into blocks for furnace linings. Also spelled: pudding stone.‘

Hope this helps! Thanks for your question.

[reddpenn]

Here is a cool rock fact!  Phosphorescent minerals and fluorescent minerals both glow with cool colors under UV light.  But fluorescence vanishes the moment the light is turned off.  Phosphorescence keeps glowing for a while!

This piece of puddingstone is phosphorescent!  After being exposed to shortwave UV light, it briefly glows neon green.

[geodesandmore]

#puddingstone #puddingstones #conglomerate #conglomerates #concretion #concretions #rocks #minerals #rocksandminerals #rockhound #rockhounding #rockhounder #geologyrocks https://www.instagram.com/p/B-NdyYPnnWE/?igshid=3bkeogv9oful