A public record of the stone in your built environmentExplore the mapBrowse all locationsFor researchersAbout the project
London Pavement Geology — home
Submit a location

Now extended for the rest of the UK

  • Explore
    • Map of all sites
    • Search Locations
  • Browse
  • Submit a Location
  • About
    • About this project
    • Project History
    • Further Reading
    • Useful Links
    • Mobile App
  • Contact

Categories

AllIgneousMetamorphicSedimentaryFossilStructure
 
 
 

Home/Explore the map/Browse A–Z: 0–9

40, Holborn Viaduct

Raw Silk

  • Metamorphic
  • Orthogneiss
  • 2.0-2.4 Ga

This stone is older than it looks. Send it to someone five minutes away.

  • WhatsApp (opens in a new tab)
  • Bluesky (opens in a new tab)
  • X (opens in a new tab)
  • Facebook (opens in a new tab)
  • Email

See the message

Just found Raw Silk in 40, Holborn Viaduct.

2.0-2.4 Ga orthogneiss, quarried at Madurai, Tamil Nadu, India. Nearest stop: Chancery Lane.

This stone is older than it looks — worth five minutes if you're nearby.
https://www.londonpavementgeology.co.uk/location/102-40-holborn-viaduct/

Location Details

Back to Map

Location of Geological Feature
Cladding all over the building.
Rock Type
Orthogneiss
Geological Age
2.0-2.4 Ga
Quarry Location
Madurai, Tamil Nadu, India.
Category
Metamorphic
Nearest station
Chancery Lane
Address
40, Holborn Viaduct EC1A 2DE
40, Holborn Viaduct — Raw Silk
Raw Silk at 40, Holborn Viaduct
Raw Silk at 40, Holborn Viaduct (detail 2)
Raw Silk at 40, Holborn Viaduct (detail 3)
    Entry submitted by Ruth

Nearby

The closest other recorded buildings.

  • Atlantic HousePlumpton Red Lazonby Sandstone20 m · about 1 min walk
  • Prince Consort MemorialPeterhead Granite70 m · about 1 min walk
  • City TempleBath Stone80 m · about 1 min walk
  • 120, HolbornDakota Mahogany Granite80 m · about 1 min walk
  • Morley HousePortland Stone: Whitbed100 m · about 2 min walk
  • 33, HolbornDe Lank Silver Grey Granite110 m · about 2 min walk

Suggest an Edit


London Pavement Geology

A public record of the stone in your built environment.

Like the site? Buy us a coffee

Explore

Map of all sitesSearch locationsBrowse every location

Contribute

Submit a locationContact us

About

About this projectProject historyFurther readingUseful links

Funding, sponsorship and supporting institutions

  • Marelambis Ltd.
  • University College London
  • Petroleum Exploration Society of Great Britain
  • Geologists' Association Curry Fund
  • Geoscience Wales
  • The Geological Society
  • London Geodiversity Partnership

With donations from individuals in the oil and gas industry who wish to remain anonymous.

Building stone data by Ruth Siddall, Dave Wallis and contributors. Project founded by Dave Wallis.

Privacy policyCookie policyTerms© 2026 London Pavement GeologyWeb design by Livetech

We would like to use Google Analytics to see which pages people find useful. It sets cookies in your browser, so we only do it if you say yes. Nothing about you is identified individually. What we use and why.