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A throwback to a trip to Vancouver for . This is Tyndall Stone with fossils of the Receptaculitid alga Fisherites. It's an U Ordovician limestone from Garson, Manitoba and one of Canada's great .

A throwback to a trip to Vancouver for #fossilfriday. This is  Tyndall Stone with fossils of the Receptaculitid alga Fisherites. It's an U Ordovician limestone from Garson, Manitoba and one of Canada's great #buildingstones.
#urbangeology #tyndallstone
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Pavement Geology(@pavementgeology) 's Twitter Profile Photo

Capel Garmon chambered tomb near Betws-y-Coed in N Wales, an outlying Cotswold-Severn type tomb constructed with orthostats and capstone of well-cleaved Ordovician tuffs interbedded in the Cwm Eigiau Formation

Capel Garmon chambered tomb near Betws-y-Coed in N Wales, an outlying Cotswold-Severn type tomb constructed with orthostats and capstone of well-cleaved Ordovician tuffs interbedded in the Cwm Eigiau Formation #Neolithic #UrbanGeology #buildingstones
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Pavement Geology(@pavementgeology) 's Twitter Profile Photo

Footbridge - recently installed - in the Nant-y-Geuallt near Capel Curig made from a single slab of local (ish) slate. Just love the versatility of this material

Footbridge - recently installed - in the Nant-y-Geuallt near Capel Curig made from a single slab of local (ish) slate. Just love the versatility of this material #buildingstones #urbangeology
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The 4000th location added to our website! 🥳🎉 An enormous Metropolitan Cattle Trough at Smithfields made from a HUGE single block of a strikingly muscovite-rich Cornish granite londonpavementgeology.co.uk/location-detai…

The 4000th location added to our website! 🥳🎉 An enormous Metropolitan Cattle Trough at Smithfields made from a HUGE single block of a strikingly muscovite-rich Cornish granite londonpavementgeology.co.uk/location-detai… #urbangeology #londonpavementgeology #buildingstones
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Pavement Geology(@pavementgeology) 's Twitter Profile Photo

Looking at grave memorials is a good way to start learning about & . Here are some new entries for the church of St Peter's-in-the-Forest, Walthamstow, East London, new on our website: londonpavementgeology.co.uk/geo-sites/

Looking at grave memorials is a good way to start learning about #buildingstones & #urbangeology. Here are some new entries for the church of St Peter's-in-the-Forest, Walthamstow, East London, new on our website: londonpavementgeology.co.uk/geo-sites/
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Pete Savin(@pete_savin) 's Twitter Profile Photo

“The Ninth Cohort of Marcius Comatus” a centurial stone from Corbridge now built into the wall in these buildingstones were a way of recording the units building sections or other military installations

“The Ninth Cohort of Marcius Comatus” a centurial stone from Corbridge now built into the wall in #HexhamAbbey these buildingstones were a way of recording the units building sections #HadriansWall or other military installations #RIB1169
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Pavement Geology(@pavementgeology) 's Twitter Profile Photo

'Roach'-type facies in Neogene limestone; 'poros' used to build the Kapnikarea Byzantine Church on Ermou in Central Athens. Traces of shell still remaining ...

'Roach'-type facies in Neogene limestone; 'poros' used to build the Kapnikarea Byzantine Church on Ermou in Central Athens. Traces of shell still remaining ... #urbangeology #buildingstones #fossilfriday
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