magnesian limestone

[mag′nē·zhən ′līm‚stōn]

(petrology)

Limestone with at least 90% calcite, a maximum of 10% dolomite, an approximate magnesium oxide equivalent of 1.1-2.1, and an approximate magnesium carbonate equivalent of 2.3-4.4.

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It passes through impressive cliff top scenery and the Durham denes, deep wooded ravines carved into the Magnesian Limestone rock.

Life's a beach

Trust reserves manager Mark Richardson said: "The majority of Herrington Hill is a primary magnesian limestone grassland, one that has remained undisturbed for centuries, and this site represents more than 10% of the total area of this habitat found in the UK.

Magnesian magic gets recognition

Architect Edward Prior used reinforced concrete to build the church, faced with rugged local magnesian limestone.

City's finest buildings catalogued; Architectural treasures created by industrialist patrons are recorded

North Tyneside Mayor Linda Arkley confirmed that additional investment in the planned improvements for the old magnesian limestone quarry will benefit wildlife and increase enjoyment for site users.

Wildlife site open again after floods; Huge clear-up at nature reserve

"The Durham Heritage Coast is an area that shows nature's powers of recovery from the effects of past industry and is the only place in the country where the underlying magnesian limestone meets the sea.

Conserving the 'coal coast' TONY HENDERSON reports on a move to turn the once coal-blackened beaches off Durham into a Marine Conservation Zone to help protect its wildlife and undersea habitats

The coastal path, which runs for 11 miles, winds through areas of great natural, historical and geological interest with dramatic views along the coastline and out across the North Sea, an area rich in shallow bays and headlands with yellow Magnesian Limestone cliffs.

Walking by the seaside; DURHAM Heritage Coast sponsored by Environment Agency

This will be an opportunity to see the coast from the sea and appreciate the magnesian limestone cliffs.

Durham heritage coast outdoor festival begins

While there are lots of aquifers in the North East, those that supply most of our drinking water are the magnesian limestone between Sunderland, Hartlepool and Darlington and the fell sandstone between Kielder, Wooler, Rothbury and Berwick.

Treasure underfoot; sponsored by Environment Agency

A fascinating two hour stroll around the ancient magnesian limestone gorge that is Castle Eden Dene National Nature Reserve awaits, as you learn the story hidden within the stones.

Help support conservation; sponsored by Environment Agency

To the north of the lighthouse is The Leas, a two-and-a-half mile stretch of magnesian limestone cliffs, wave-cut foreshore and coastal grassland.

Lighthouse anniversary marked with concert

Last year, victims and their families were finally able to claim from a pounds 36m compensation pot The site is close to a former chemical works, set up in 1842, and the business started with a process for separating silver from lead and continued into the extraction of magnesia from magnesian limestone.

Six-year fight for justice

Stretching north from Souter lighthouse, The Leas is two and a half miles of magnesian limestone cliffs, wave-cut foreshore and coastal grassland.