Metamorphic Rocks - Geology Superstore

Uncover the captivating world of Metamorphic Rocks, where the forces of heat and pressure have transformed ordinary rocks into extraordinary geological masterpieces. Our collection of Metamorphic Rocks offers a fascinating glimpse into the transformative processes that occur deep within the Earth’s crust. Each specimen reveals the stunning textures, unique mineral compositions, and intricate structures that result from the metamorphic journey.

Browse our selection today and witness the diversity and scientific significance of Metamorphic Rocks. Each specimen has been carefully chosen to showcase the beauty and geological importance of these extraordinary rocks.

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Eclogite – Germany £2.00 – £25.00 ex VAT
Size
1.5" x 1.5"2" x 2"3" x 2"4" x 3"
German Eclogite specimens from Weissenstein, Bavaria. Eclogite is a metamorphic rock, featuring red garnets within a matrix of sodium rich plagioclase called omphacite. These samples are perfect for both collectors and for educational use. They come supplied in a white card tray with an information label. Limited stock available.

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Anyolite – Tanzania £2.00 – £3.00 ex VAT
Specimen Size
1.5" Mag Box 1" Mag Box
Specimens of the rock anyolite comprised of the minerals zoisite, corundum var. ruby and pargasite from Mundarara Mine, Arusha Region, Tanzania. Specimens are supplied in a magnifier box and come with an information label.

Please note that the size of the ruby within the rock varies between specimens.

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Augen Gneiss £1.15 – £3.46 ex VAT
Specimen Size
2"x 2"3" x 2"4" x 3"
Augen Gneiss is a foliated metamorphic rock with large crystals of lenticular or eliptical shear bound microcline.

13 in stock

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Biotite Gneiss – Norway £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Biotite gneiss is a metamorphic rock found in Evje, Norway. These specimens exhibit alternating bands of black and white minerals, derived from quartz, plagioclase feldspar and biotite mica. Giving a surreal appearance, similar to the stripes of a zebra. The samples are available in various sizes and comes supplied in a card tray with a label.

74 in stock

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Biotite Gneiss – Scotland £1.48 – £3.85 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Biotite gneiss is a metamorphic rock found in Blairgowrie, Perthshire in Scotland. These specimens exhibit faint alternating bands of black and white minerals, derived from quartz, plagioclase feldspar and biotite mica. Giving a surreal appearance, similar to the stripes of a zebra. The samples are available in various sizes and comes supplied in a card tray with a label.

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Chiastolite Slate £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Chistolite slate is a variation of slate which also contains chiastolite crystals within it,the slate its self is either a brick red or plum colour with the chiastolite crystals appearing as white lines and randomly orientated within the rock matrix. rock specimens are available in various sizes and will be supplied in a labelled card tray.

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Connemara Marble £1.10 ex VAT
Specimen Size
1.5 " x 1.5"
A rare, green marble dating back some 700 million years to the end of the Pre-Cambrian. This marble comes from the Streamstown quarry in Clifden, Co. Galway. Specimens ( max size 3″ x 2″) are supplied in a labelled card tray.

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Cordierite Hornfels £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
This variation of Hornfels exhibits strong banding with small crystals of Cordierite.The samples were collected from near Carrock Fell. Cumbria, UK. .

37 in stock

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Eclogite £4.03 – £16.10 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"4" x 3"
Eclogite is an uncommon metamorphic rock, composed of mainly two minerals, reddish-brown garnets and omphacite, a green pyroxene. Other minerals, such as blue kyanite and white quartz may also be present. Over all, it is an attractive looking yet rare rock, with a vibrant green colouration with red garnets to break it up. These rocks come from Almenning, Norway. Specimens are supplied in card trays with labels and come available in 4 sizes.

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Garnet Amphibolite £1.38 – £4.83 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"4" x 3"
Garnet Amphibolite supplied in a card tray with a label. This attractive rock from southern Norway has highly prominent garnet porphyroblasts (also known as cherry cake).

22 in stock

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Garnet Mica Schist £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Garnet mica schist from Loch Tay, Scotland, showing in excellent detail the effects of regional metamorphism along plate boundaries, the garnets push the mica crystals around it due to being stronger, the specimens are available in various sizes or as a cut and lacquered piece, supplied in a card tray with a data label.

56 in stock

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Garnet Mica Schist – Fauske £3.34 – £5.64 ex VAT
Mineral Specimen Size
2" x 2"3" x 2"
Garnet Mica Schist from Fauske, Norway, displaying the details of regional metamorphism adjascent to a plate boundary. The garnet crystals stand out and protrude from the micaceous matrix. Specimens available in 2 sizes, and come supplied with a card tray and information label.

65 in stock

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Glaucophane Schist £3.45 – £6.90 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Glaucophane Schist is also known as Blueschist. The blue-green colour comes from the dominant presence of the minerals Glaucophane (amphibole) & Lawsonite (related to epidote). These specimens were collected from the Isle of Anglesey, North Wales.

49 in stock

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Gneiss – Lewisian £3.45 – £6.90 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Lewisian gneiss from Northwest Scotland, formed during the Pre-Cambrian period, making it among the oldest rocks in the UK, pushed to the surface during an oregenic event, Lewisian gneiss exhibits banded like most gneisses but is comprised of more dark, dense minerals, often igneous in origin. Specimens are available in 3 different sizes.

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Gneiss – Norway £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Gneiss from Evje, Norway, containing more feldspar and quartz than Lewisian gneiss from Scotland, giving it a pink colour, these specimens show excellent banding and text book crystal structure, supplied in 3 sizes, ideal for educational use.

97 in stock

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Graphitic Schist £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Samples of graphitic schist from the Pre-Cambrian Dalradian formation, making them among the oldest rocks in the country. The samples come from the Ben Eagach schist formation at Foss mine, Scotland, UK and were collected by our own members of staff. The rock contains mica and graphite, which gives the specimens their unique mica appearance and greasy graphitic texture and lustre.

71 in stock

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Greenschist £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Greenschist metamorphic rock specimens from Scotland, exhibiting excellent schistose texture and folliation and a deep green colouration due to the presence of chlorite and serpentine. Specimens are available in various sizes and supplied in a card tray with a data label.

70 in stock

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Greisen £1.44 – £3.85 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Greisen metamorphic rock specimens from Caldbeck Fells, Cumbria, composed mainly of quartz and mica with an off yellow colouration. The rock is known as an endoskarn and forms when hydrothermal fluid and heat alter a granitic body, resulting a heavily altered rock which may contain trace amounts of rare elements. These samples are suitable for advanced collectors and higher level education and are available in three sizes, each pieces will come supplied in a card tray with a label.

30 in stock

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Hornblende Gneiss £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Hornblende gneiss is a coarse grained metamorphic rock belonging to the gneiss family, its overall dark colouration is due to high levels of the mafic mineral hornblende, while quartz and feldspar are also present. The rock specimens come from southern Norway and are available in various optional sizes.

195 in stock

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Hornfels £1.38 – £2.62 ex VAT
Specimen Size
2" x 2"3" x 2"
Hornfels, dark blue or black in colour collected from Shap quarry, Cumbria, a strong, durable rock, splintery when broken is comprised of mafic minerals, the rock may also exhibit acoustic properties. Supplied in a sized up card tray with an information label.

33 in stock

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Hornfels (Banded) £1.65 – £3.45 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Banded hornfels exhibiting an alternating band feature, likely due to the original rock being layered such as sandstone, shale etc. The specimens come from Kentellen, Scotland, are available in different sizes and come in a card tray, suitable for school use.

10 in stock

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Marble £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
White marble exhibiting medium interlocking crystals suggesting a limestone rock origin These particular specimens are from Torrin Quarry on the Isle of Skye, Scotland and are available in three optional sizes.

66 in stock

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Marble With Forsterite £1.50 – £6.00 ex VAT
Specimen Size
1.5 " x 1.5"2" x 2"3" x 2"4" x 3"
Marble with forsterite which has been hydrated to serpentine. Found in Ledmore Quarry, Sutherland. Scottish Highlands. Specimens are supplied in a card tray with a information label.

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Metagabbro £2.30 – £5.06 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Metagabbro specimens from Lom, Central Norway. Also known as scapolite-hornblende due to the absence of feldspar in the rock are available in 3 optional sizes and come supplied in a card tray with a data label.

44 in stock

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Metaquartzite – Anglesey £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Metaquartzite is a low grade metamorphic rock often composed mainly of quartz, however, other minerals can exist, and mineral impurities during crystalisation can result in differing colours, these particular samples from Anglesey have a green colouration to them. The rock specimens are available in 3 different sizes and come in a card tray with a data label.

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Metaquartzite – Scotland £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Metaquartzite collected from Onich near Ballachulish, Scotland, which detail text book quality metaquartzite, pure white, hard and composed mainly of quartz with very few impurities, these rock specimens are ideal for educational use or as part of a larger collection of rocks, supplied in a card tray with a label.

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Mica Schist £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Dalradian mica schist is a famous metamorphic rock, composed mostly of the minerals muscovite mica with occurrences of quartz and feldspar, these rock specimens are Pre-Cambrian in age and come from Scotland, supplied in a card tray with an information label.

27 in stock

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Migmatite £3.68 – £10.35 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Migmatites are an unusual rock that is a mixture of both igneous & metamorphic lithologies.The samples were collected by our staff and come from central Norway. Each specimen comes in a card tray with a label.

68 in stock

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Mylonite £2.07 – £6.50 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"5" x 3.5"
Mylonite exhibiting ribbon texture from Lom, central Norway, excellent rock specimens and rare to come by, available in various sizes.

61 in stock

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Phyllite £1.73 – £3.68 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Phyllite is a foliated metamorphic rock formed from slate which has been further metamorphosed. These specimens from Kinlochleven in Scotland and show good, fine cleavage and a silky metallic lustre.

192 in stock

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Red Soapstone (Shetland Islands) £3.45 – £23.00 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"4" x 3"5" x 3.5"
Specimens of red soapstone from the Shetland Islands, Scotland, UK. Supplied in a white card tray with an information label, these peculiar samples are ideal for any collector of British material.

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Rhodolite Garnets in Mica Schist and Quartz £2.38 – £6.37 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Rhodolite garnets in quartz and mica schist matrix from Southern Norway exhibiting bright vibrant pink coloured garnets in a white quartz and metallic grey mica schist with a start contrast of colours, these minerals specimens are available in 3 sizes and come supplied in a card tray with a label.

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Serpentine
Serpentine is a green coloured schist rock, most famous from its type locality along the Lizard peninsula, Cornwall. These specimens come from the Isle of Anglesey, have a much more vibrant colour and are available in various sizes.

Out of stock

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Serpentine – Norway £3.45 – £6.90 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Specimens of serpentine found in Modum, Southern Norway. Specimens are supplied in a card tray with a information label.

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Slate £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Slate from Wales, famous for its use as a roofing material, these specimens exhibit text book characteristics such as fine grain crystal structure, foliation, slatey cleavage and a variety of colours, excellent for educational use, supplied in various sizes.

52 in stock

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Spotted Rock £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Specimens of spotted rock from Blencathra, Cumbria, UK. The samples are supplied in a white card tray with an information label, ideal for educational use or great as an addition to any rock collection.

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Tigers Eye £2.65 ex VAT
Tiger eye specimen, a metamorphic rock, often classified as a mineral, comprised of numerous golden brown fibrous crystals which stem from the mineral previously being asbestos. These samples come from South Africa and are available in 1.5″ size only and comes supplied in a card tray with a label.

4 in stock

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Wehrlite £3.55 – £9.20 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"3" x 3"
Specimens of wehrlite from Gusdal Olivine Pit, Åheim, Norway. These specimens are supplied in a white card tray with an information label and are a perfect addition to any rock collection.

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