Steetley Magnesite, Hartlepool



  1. Thankyou for your informative tour and the witty presentation of the history of the site. thankyou also for your encouraging the older people in the party – like myself – to venture along dangerous routes. i felt like a young schoolboy again!


    Magnesite is an important industrial mineral composed of magnesium carbonate (MgCO3). Pure magnesite is theoretically 47.8% MgO and 52.2% CO2. It is the source of two-thirds of the 9 Mt of magnesia (MgO) used annually throughout the world; 25% is extracted from sea water, with the balance coming from brines or other mineral sources such as serpentinite or brucite.

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