Volcanic Tuff

£2.25£6.00 ex VAT

Tuff from the Borrowdale Volcanic Group, Ordovician in age, the rock has a green colouration to it and a slate like cleavage, hence sometimes being known as volcanic slate, green slate or Borrowdale slate. Rock specimens are available in 3 optional sizes and will come supplied in a card tray with a label.

We also supply Volcanic Tuff thin sections for microscope study which are available to buy HERE.

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    Delivery

    We ship to all 50 states, Washington DC.
    All orders are shipped with a UPS tracking number.
    Always free shipping for orders over US $200.
    During sale periods and promotions the delivery time may be longer than normal.

    Return

    Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.

    Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
    Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.

    Help

    Give us a shout if you have any other questions and/or concerns.
    Email: contact@mydomain.com
    Phone: +1 (23) 456 789

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Volcanic tuff is an igenous rock, more specifically, belonging to the pyroclastic group. Pyroclastic rocks are essentially composed almost all from volcanic material although sometimes, inclusions of country rock (the surrounding rock which was already in place) can be seen. Volcanic tuff is formed from phreatomagmatic eruptions, where volcanic material such as ash and pyroclastic bombs are ejected from the volcano during eruptions. Tuff is essentially derived from the ash which has been ejected out of the volcano during activity, originally a fine grained ash, as the ash settled, over time through various geological processes, the ash consolidates into a solid rock which geologists know as tuff. This particular variant of tuff is green in colour due to the presence of chlorite, this particular tuff also has a slatey cleavage, meaning it breaks in slabs or slices, very similar to slate and is in fact also known as Borrowdale slate, green slate or volcanic slate. It comes from the Borrowdale valley in Cumbria, an area rich in volcanic history, the valley itsself is actually named after the Borrowdale Volcanic Group, which is comprised of a series of various volcanic rocks which formed during the Ordovician period. Specimens are available in various optional sizes and come in a card tray with a label.

We also supply Volcanic Tuff thin sections for microscope study which are available to buy HERE.

Weight 130 g
Specimen Size

2" x 2", 3" x 2", 4" x 3"

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