How about the oldest #Donegal rocks of all? Inishtrahull Gneiss #OldRockDay 1.7billion years old.

For #OldrockDay here’s the Wave Rock - a 2700 million year old granite (Hayden Rock) in Western Australia! It’s been carved into a concave wall by seasonal weathering & erosional mechanisms undercutting the base, resulting in a rounded overhang. 🖤

It's Old Rock Day!
#OldRockDay #NationalOldRockDay #Stone

#OldRockDay
ఒక రాక్ అంటే సహజంగా సంభవించే ఘన ద్రవ్యరాశి లేదా ఖనిజాలు లేదా ఖనిజ పదార్థాల మొత్తం. ఇది చేర్చబడిన ఖనిజాలు, దాని రసాయన కూర్పు మరియు అది ఏర్పడిన విధానం ద్వారా వర్గీకరించబడుతుంది. రాళ్ళను సాధారణంగా మూడు ప్రధాన సమూహాలుగా

Some holidays rock more than others. Enjoy #OldRockDay with the #Croods !

A fistful of #Donegal Granite #OldRockDay 🇮🇪

#OldRockDay #Donegal rare outcrop of Orbicular Granite

#OldRockDay
ఒక రాక్ అంటే సహజంగా సంభవించే ఘన ద్రవ్యరాశి లేదా ఖనిజాలు లేదా ఖనిజ పదార్థాల మొత్తం. ఇది చేర్చబడిన ఖనిజాలు, దాని రసాయన కూర్పు మరియు అది ఏర్పడిన విధానం ద్వారా వర్గీకరించబడుతుంది. రాళ్ళను సాధారణంగా మూడు ప్రధాన సమూహాలుగా వర్గీకరిస్తారు: #Rock Day
#Rock

Moonlit madness in feline eyes, a gentle dance of whiskers and shadows. Like inky spectres, cats observe the celestial ballet with a mystical elegance. In the lunar glow, they become surreal creatures, part dream, part mischief.

#RalphSteadman #Illustration #OldRockDay

For #OldRockDay today, limestone pavement at Lavernock Point, #SouthWales in #blackandwhite , available as #prints and on #gifts here FREE SHIPPING in UK: lens2print.co.uk/imageview.asp?…
#AYearForArt #BuyIntoArt #Glamorgan #landscape #HeritageCoast #geology #blackandwhite photography

It's National #OldRockDay - or as #Wolverine might say, 'Why are you calling me a rock, bub?' - #xmentas #PreviouslyonXMen

#OldRockDay

Here is a chunk of Corbin Metagranite from the Rowan Springs Formation in Cartersville, GA. This dates back to 1.2 billion years to the Neoproterozoic Eon. GA's oldest rocks date back to the Greenville Orogeny.

Today is #OldRockDay and we celebrate the biggest bit of old rock in Dundee - the Law Hill. Made of volcanic rock but not an actual volcano (despite what I learnt at school).
Taken from the top of the Steeple, April 1982. Ref: GD/X1384 Dundee Various Tray 1
#Dundee #Archives

We got a rostral!! 🦏 🪨 #oldrockday

Stream #DinoHunters on discovery+.
📲 links.discoveryplus.com/dinohunters

It's Old Rock Day!
#OldRockDay #NationalOldRockDay #Gibraltar

Happy Old Rock Day!
#OldRockDay

All the lessons are in nature. You look at the way rocks are formed – the wind, the water hitting them, shaping them, making them what they are. Things take time, you know?

Old Rock day is to celebrate all things rocky! So get out there & dont take them for granite! #OldRockDay

Happy #OLDROCKDAY ! Here is a clip of one of Ireland's most striking #Geological features and #lighthouses as seen by the INFOMAR survey team off the #coast of #Cork .

Can anyone name this Rock?

Visit INFOMAR.ie

Dept. Environment, Climate and Communications Geological Survey IE Marine Institute Irish Lights

#Inishtrahull geologically is 1.7 billion years old, making it the oldest known rock of the Irish Islands. #OldRockDay

Just in case you're wondering....7th January is Old Rock Day! #OldRockDay #nature #NaturePhotography #rock #stone #ocean #waves #OTD #geology #TuesdayThoughts #coast #sea