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Metamorphic Rocks

Metamorphic rocks are rocks that have 'morphed' into another type of rock. These rocks were once Igneous or Sedimentary rocks which have been subjected to intense pressure and heat. Common types includes, Gneiss, Schist, Marble and Slates.

Products (4)

Gneiss

Provided loose in 1kg bags

This common type of Metamorphic rock is found widely distributed around the world. It is composed of layers of sheet-like planar structures. These structures have alternating darker and lighter coloured bands, known as "gneissic banding".

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Gneiss [Lewisian] - (Skye)
(RS1024)
£5.35 £6.42* In Stock
Feldspathic gneiss/schist - (Skye)
(RS1048)
£4.95 £5.94* In Stock

Slate

Provided loose in 1kg bags

Slate is a fine-grained, metamorphic rock which has been derived from an original shale-type sedimentary rock composed of clay or volcanic ash. Slate occurs in a variety of colors, even from a single locality. Used widely as a roofing material.

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Slate Green - (Ayrshire)
(RS1068)
£4.95 £5.94* In Stock
Purple Slate, (Wales)
(RS1075)
£3.95 £4.74* In Stock

Schist

Provided loose in 1kg bags

Schist is a metamorphic rock which has medium to large grains of mica flakes situated in it. Individual mineral grains in schist are drawn out into flaky scales by heat and pressure, these are visible to the naked eye. Schist is determined when the individual mineral grains split off easily into flakes or slabs.

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Garnet Mica Schist (Scotland)
(RS1011)
£5.35 £6.42* In Stock
Moine Schist, (Scotland)
(RS1079)
£5.35 £6.42* In Stock

Other Metamorphic Rocks

Provided loose in 1kg bags

Metamorphic rocks are rocks that have 'morphed' into another kind of rock. These rocks were once igneous or sedimentary rocks, but were subjected to intense pressure and heat. We source the finest samples from all over the UK and Europe.

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Ex VAT Inc VAT*
Marble (Italy)
(RS1022)
£5.20 £6.24* In Stock
Mylonite (Skye)
(RS1031)
£5.35 £6.42* In Stock
Quartzite, (Ord, Skye, Scotland)
(RS1080)
£5.35 £6.42* In Stock

*VAT inclusive price only applies to UK customers (excluding the Channel Islands) and EU customers without an EU VAT number. Please note, it is a guide only since VAT will be calculated on the total order, hence some minor rounding differences may occur on the final total.

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