Rocks, Minerals and Fossils Archives - Page 7 of 7

Syenite – (Larvikite) £2.25 – £6.00 ex VAT
Larvikite is an igneous plutonic rock and variant of monzonite from Larvik, Norway, due to its chemistry, it is composed mainly of orthoclase, albite and anorthite along with plagioclase which gives the rock a blue to silver shimmering effect. The igneous pluton formed during the Permian period, 292 – 298 million years ago during the the Variscan orogeny. A beautiful rock to observe due to its coarse crystalline texture and schiller effect, the samples are ideal for general interest, collectors and educational use with specimens being available in three sizes and come supplied in a card tray with an information label.

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

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138 in stock
-10%Limited

Syenite Slide £18.00 ex VAT
Syenite thin section slide. The thin sections show a dominant feldspar mass ( orthoclase ) with occurrences of hornblende, amphibole and clinopyroxene. Biotite mica may also be present however its occurrence is rare, The thin section is supplied in a protective card sleeve with a label, ideal for microscopy and educational purposes.

Click here to to explore our extensive collection of igneous, sedimentary, metamorphic, and mineral thin sections. We offer a wide range of options to cater to your needs. If you require a microscope, you can find them available here as well.

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5 in stock
Talc £2.00 – £6.00 ex VAT
Specimens of Talc, collected from Egypt. Talc is a common clay mineral that is easily identifiable due to its greasy texture. Talc is extremely soft, with a hardness of just 1 on Mohs scale and is also the primary component in talcum powder. These specimens are pale green in colour. They are available in multiple sizes and come in a white card tray with an information label.

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196 in stock
Talc (1kg) £8.00 ex VAT
Specimens of Talc, collected from Egypt. Talc is a common clay mineral that is easily identifiable due to its greasy texture. Talc is extremely soft, with a hardness of just 1 on Mohs scale and is also the primary component in talcum powder. These specimens are pale green in colour. They come in a heavy duty polythene bag with pieces of various sizes.

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-10%Limited

Talc (Soapstone) Slide £18.00 ex VAT
Microscope slides of talc (soapstone) from Norway, these slides display the crystal structure of the mineral on a microscopic level which assists in the identification of this mineral in other slides. Each section is made to 30 microns thickness and the glass is 46 x 27 mm in size, supplied in a protective card sleeve with a label, ideal for microscopy & educational use.

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2 in stock
Talc Sticks (5 Pack) £2.00 ex VAT
Pack of 5 Talc Sticks for £2.00 Approx size = 12cm x 1.5cm. Ideal for Hardness testing.

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Tektite £2.30 ex VAT
Tektite mineral specimens which were collected from Thailand, and have formed an irregular ‘tear drop’ shape. Each specimen measures 10 – 20mm approx in size. Radiometric dating gives an approximate age of 700,000 years old. Specimens are irregular in shape and are mainly black & opaque with a glassy lustre on fractured surfaces.

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Thecosmilia annularis £2.00 ex VAT
Specimens of Thecosmilia annularis from the Jurassic period, Corallian beds. The specimens were found at Steeple Ashton, Wiltshire, U.K.

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Thulite £2.25 – £6.00 ex VAT
Thulite mineral specimens from Lom, central Norway. A massive form of this mineral which exhibits excellent rose pink colouration and a fine crystalline texture, the samples were collected by staff and are very pure. We can offer pieces in various sizes and they will come supplied in a card tray with a data label.

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80 in stock
Tigers Eye (Blue) £1.50 – £6.00 ex VAT
Specimens of Tigers Eye, collected from South Africa. Tigers Eye is a famous gemstone, due to its high quality, crystal habit, and ability to take cutting and polishing. These specimens are examples of blue tigers eye, being a mixture of brown and grey/blue colours with a silky lustre. They are available in multiple sizes and come in a white card tray with an information label.

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Tigers Eye (Gold) £1.50 – £6.00 ex VAT
Specimens of Tigers Eye, collected from South Africa. Tigers Eye is a famous gemstone, due to its high quality, crystal habit, and ability to take cutting and polishing. These specimens are examples of gold tigers eye, being a mixture of gold and brown colours with a silky lustre. They are available in multiple sizes and come in a white card tray with an information label.

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Topaz Crystals £2.07 ex VAT
Topaz crystals from the famous Topaz mountain, Utah, USA. these mineral specimens exhibit both yellow crystal along with bixbite, which is grey. They are small in size, only around 1 cm in length and so come supplied in a magnifier box with a data label for easier viewing. A well known semi precious gemstone due to its facetting and variety of colour, many will have seen topaz in jewellery at some point in their lives.

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Torridonian Sandstone £2.25 – £6.00 ex VAT
Specimens of Torridonian Sandstone, collected from Torridon, Scotland. These sandstones date from the Pre-Cambrian and are amongst the oldest rocks to be found in the UK. These rocks are part of the Torridonian Supergroup which includes arkoses, shales and conglomerates, and overlie the older Lewisian Rocks. These Torridonian Sandstones are typically hard, with a grain size that ranges from coarse to fine. They often display trough or planar cross bedding which suggests a palaeocurrent flowing from the North West out across large fan deltas. These rocks are dark red to brown in colour, indicating a partly arid (dry) depositional environment. These specimens are available in multiple sizes and come supplied in a white card tray with information label.

We also supply Torridonian Sandstone thin sections for microscope study which are available to buy HERE.

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277 in stock
Torridonian Sandstone (1kg) £8.00 ex VAT
Torridonian Sandstone from Loch Kishorn, Scotland. The sandstone of pre-cambrian age and among the oldest rocks found in the British isles and gets its name from Torridon where it is found. Supplied by weight, sizes vary.

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Torridonian Sandstone Slide £18.00 ex VAT
Torridonian sandstone thin section slide exhibiting a fine grained arenaceous nature. The Torridonian Sandstones date from the Pre-Cambrian & are amongst the oldest rocks to be found in the UK. The section is made to 30 microns thickness and the glass is 46 x 27 mm in size with a cover slip.

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5 in stock
Tourmaline – Madagascar £1.50 ex VAT
Tourmaline crystal specimens from Madagascar, the mineral pieces are highly crystalline and completely black in colour, opaque and of high grade. Samples are 1 – 2 cmin size will come supplied in a card tray with an information label.

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24 in stock
Tourmaline – South Africa £3.00 ex VAT
Specimens of Tourmaline, collected from South Africa. Tourmaline is a crystalline mineral and semi precious stone, due to its various potential colours. It is a boron silicate compound which usually appears jet black in colour. These particular mineral specimens come from South Africa and are clean and free of matrix, but the crystalline nature of the mineral is easily visible. These specimens are 1 – 2 inches in size will come supplied in a card tray with an information label.

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Tourmaline Slide £18.00 ex VAT
Microscope slides of tourmaline from Brazil, these slides display the crystal structure of the mineral on a microscopic level which assists in the identification of this mineral in other slides. Each section is made to 30 microns thickness and the glass is 46 x 27 mm in size, supplied in a protective card sleeve with a label, ideal for microscopy & educational use.

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3 in stock
Trachyte £2.25 – £6.00 ex VAT
Trachyte, a common igneous rock composed of various minerals including quartz, feldpsars, micas and olivine, rock specimens come from East Lothian, Scotland and are available in optional sizes, supplied in a card tray with a label.

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Travertine £2.25 – £6.00 ex VAT
Specimens of Travertine, collected from Yorkshire,UK. Travertine is a type of limestone which forms by the rapid precipitation of calcium carbonate, often at the margins of a hot spring or in limestone caves. It often has a fibrous or concentric banded appearance. Travertine is typically white or buff in colour, but can range through to orange and brown occasionally. It tends to be much denser and more compact than Tufa, and has notable uses as a decorative stone. Specimens are available in multiple sizes and come supplied in a white card tray with an information label.

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

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36 in stock
-10%Limited

Travertine Slide £18.00 ex VAT
Travertine thin section slide. Travertine is a form of limestone deposited by mineral rich springs, especially hot springs. It is formed by the rapid precipitation of calcium carbonate, often at the margins of a hot spring or in a limestone caves.

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6 in stock
Tufa £2.25 – £6.00 ex VAT
Specimens of Tufa, collected from Caerys, North Wales. Tufa is a variety of limestone, which forms by the precipitation of carbonate minerals from ambient temperature water bodies. These specimens date to the Quaternary period, specifically, the Flandrian epoch. It forms in fluvial channels or lacustrine environments & subterranian passages (dripstone, stalagmites & stalactites). This rock specimen is a classic tufa, light in weight, spongy, and containing many plant, preserved in the rock. Specimens are available in multiple sizes and come in a white card tray with an information label.

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

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7 in stock
-10%Limited

Tufa Slide £18.00 ex VAT
Tufa thin section slide. Tufa is a variety of limestone, formed by the precipitation of carbonate minerals from ambient temperature water bodies. This particular material is from the Flandrian epoch of the Quaternary Period and it was collected in Caerwys, North Wales.

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5 in stock
Turquoise £2.07 – £6.33 ex VAT
Turqoise mineral specimens of a low grade from South Africa, a well known mineral due to its semi precious status, its colour is due to the presence of oxidised copper within, which turns turqoise. Samples are supplied in a card tray with an information label.

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Ulexite £1.50 – £8.00 ex VAT
Specimens of Ulexite, collected from Türkiye. These specimens are off white in colour and have a fibrous texture. These specimens are available in multiple sizes and come in a white card tray with an information label.

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Ulexite – Cut £1.50 – £3.50 ex VAT
Cut ulexite mineral specimens from California, USA. A mineral similar to gypsum, ulexite is able to transmit light through its long axis, meaning if placed above an image or text, will transmit it to the samples surface as an image. Hence the name TV rock, excellent for children, these pieces are available in several sizes and will come supplied in a card tray with an information label.

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Vanadinite £3.00 – £15.00 ex VAT
Vanadinite mineral specimens with a striking rich red to orange colouration formed as crystal masses on a limestone bed. The crystals vary in size and were collected in Mibladen, Morocco. It forms during the oxidation of lead ores in arid environments such as deserts. Samples are available in various sizes and supplied in a card tray with a data label.

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Vanadinite Crystals £0.92 ex VAT
Vanadinite hexagonal crystals found in Morocco. Specimens are supplied in a small polythene bag with an information label.

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Vesuvianite £2.50 ex VAT
Specimens of Vesuvianite, collected from Mexico. These specimens display partly formed crystals with a brownish yellow colouration. These samples range from 5 – 15mm and come in a polythene bag with an information label.

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25 in stock
Volcanic Scoria £2.25 – £6.00 ex VAT
Volcanic scoria rock specimens from Italy with a deep red colouration and numerous vesicle displaying text book quality. Formed when basaltic or andesitic magma or lava reaches the earth surface, the escaping gases leave behind pockets which remain even after the lava has solidified. Samples are available in optional sizes and come in a card tray with a label.

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

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50 in stock
-10%Limited

Volcanic Scoria Slide £18.00 ex VAT
Volcanic scoria thin section slide exhibiting the highly vesicular nature of this extrusive volcanic rock. Typically volcanic scoria is basaltic or andesitic in composition; these magmas are typically runnier which results in a denser rock with larger vesicles.

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26 in stock
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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65 in stock
-10%Limited

Volcanic Tuff Slide £18.00 ex VAT
Volcanic tuff thin section exhibiting welded angular clasts of varying size. A degree of orientation can be identified as a result of the fallout of volcanic ejecta. Each section is made to 30 microns thickness and the glass is 46 x 27 mm in size with a cover slip.

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1 in stock
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Wavellite £2.30 – £2.88 ex VAT
Wavellite mineral specimens with a vibrant green colouration and radiating crystal forms on a matrix, the specimens are partial but still easily visible. Ideal for enthusiasts and collectors, these particular specimens are supplied in perspex magnifier boxes with an information label.

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Wehrlite £3.55 – £9.20 ex VAT
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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Welded Tuff Slide £18.00 ex VAT
Welded tuff thin section slide exhibiting a jumbled mass of irregularly sized broken clasts held in situ by finer ash particles which have become welded together. This material was collected from Cumbria, the original rock is likely rhyolite, and indeed in hand specimen the tuff almost still looks like rhyolite and appears to show a form of banding.

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6 in stock
White Marble (1kg) £8.00 ex VAT
White marble showing excellent crystal texture with a sugary appearance. Supplied by weight and come in lots of 1 kilogram bags .

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Witherite – Setlingstones Mine £1.50 – £6.90 ex VAT
These particular samples are a milky white to pale yellow colour and show typical fibrous crystal habit expected from Witherite. Samples are supplied in a white card with an information label.

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Wulfenite £6.90 – £17.25 ex VAT
Wulfenite crystals on matrix collected from Toussit, Morocco. Generally wulfenite occurs as thin tabular crystals; our specimens exhibit this textbook sharp laminar shape along with an intense yellow-orange colour.

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Zircon Crystals £0.50 ex VAT
zircon crystals from Brazil, excellent mineral specimens with tetragonal form, vitreous lustre and a rusty brown colour, these samples also fluoresce under shortwave ultra violet light to vibrant yellow colour, roughly 1 cm in size and supplied in a packet with a data label.

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