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  • Agglomerate £2.25£6.00 ex VAT

    Agglomerate igneous rock specimens from Scotland, UK. A coarse grained, hard blocky rock exhibiting a conglomeration of various minerals and igneous material of volcanic origin. These samples formed part of the Glen Coe caldera and are apart of the upper streaky andesite unit, the exhibit poor sorting and orientation of material which indicates a somewhat violent origin but this can vary from agglomerates by location and is mainly down to the chemistry of the igneous material. The samples are available in 3 sizes and come supplied in a card tray with a label, they are suitable for educational use to show the different types of volcanic rocks produced as well as those interested in collecting rock samples.

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  • Amygdaloidal Basalt £2.25£6.00 ex VAT

    Amygdaloidal basalt is an igneous rock which is extrusive in nature, these specimens formed over 60 million years ago during the Tertiary period and come from Ireland. They are part of the Antrim lava group and exhibit a dark colouration with occurrences of amygdales containing quartz and calcite crystals. As a basalt they are somewhat dense, but lighter than pure samples due to the cavities within them which formed as a result of gaseous activity during their ejection. Over time, hydrothermal fluids pass through the rock and minerals form within the cavities, which gives the usually dark coloured rock a speckled appearance. These samples are available in various sizes and are suitable for higher educational use to detail the subtle differences between similar igneous rocks, they come supplied in a card tray with an information label.

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    60 in stock

  • Andesite £2.25£3.50 ex VAT

    Andesite igneous rock specimens of late Ordovician age which form part of the Barrowdale volcanic group. The rocks come from Cumbria, UK and have a dark colouration with a blue tint and may contain augite crystals. The rocks are intermediate in chemistry and suitable for higher level education to explain the difference in various igneous groups. Samples are available in 3 sizes and will come supplied in a card tray with an information label.

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

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  • Angelite (Anhydrite) – Peru £1.50£8.00 ex VAT

    Angelite is a popular trade name for a variety of Anhydrite that is light blue-grey in colour, semi-transparent, fine grained and marketed as gem material. These specimens, along with most angelite, are from Lima, Peru and were collected near the Casapalca Mine at Casapalca, Huarochiri Province, Lima Department, Peru.

     

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  • Augite Andesite £2.25£6.00 ex VAT

    Augite andesite igneous rock specimens from Thirlmere, Cumbria, UK which are of late Ordovician age which form part of the Barrowdale volcanic group. The samples are of intermediate composition and contain phenocrysts of the pyroxene mineral, augite, giving the normally dark blue rock a black speckled appearance. The samples are available in 3 sizes and come supplied in a card tray with a label.

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

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    84 in stock

  • Augite Granophyre £2.25£6.00 ex VAT

    Augite granophyre igneous rock specimens from Carrockfell, Keswick in Cumbria, UK. Excellent pieces exhibiting a medium grain size of crystals which constitute this rock including, augite, quartz and feldspars and shows a granophyric texture. Suitable for avid collectors and higher educational use, the samples come supplied in a sized card tray with an information label.

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    84 in stock

  • Baryte – Derbyshire £1.50£3.50 ex VAT

    Specimens of Baryte, collected from Derbyshire. Baryte is a dense, common, well known mineral. These specimens exhibit bladed crystals and range in colour from pale beige to off white. Specimens are available in multiple sizes and come in a white card tray with an information label.

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  • Biotite Granite £2.25£6.00 ex VAT

    Biotite granite igneous rock specimens from Ballachulish, Scotland, UK. Composed of the felsic minerals quartz and feldspar, with occurrences of biotite crystals. The rock has an overall white appearance due to its felsic chemistry but the black biotite mica offers a striking contrast in colours. The samples are ideal for both collectors due to the attractive nature and for college to university level education to describe the variations in granite which one may find. The samples are available in three sizes and supplied in a card tray with an information label.

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    65 in stock

  • Biotite Mica (Massive) – Norway £1.50£6.00 ex VAT

    Massive Biotite Mica specimens, collected from Arendal, Norway. These specimens depict a “massive” crystal structure, as opposed to the more commonly seen sheets. Like all biotite mica, these specimens are dark in colour, exhibiting a dark grey to black hue. Mica is one of the most common mineral groups, with biotite being the most abundant member. Biotite is very common in igneous and metamorphic rocks, with the dark minerals in granites, pegmatites and gneiss often being due in some part to the presence of this black mica. This massive biotite are available in limited supply so we recommend you move fast if you wish to add a piece to your collection. Supplied in a white card tray with information label.

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  • Chalcedony (France) £2.25£8.00 ex VAT

    Specimens of Chalcedony, collected from Alabaster Coast, Normandy, France. Chalcedony is a silicate mineral and part of the quartz family. These specimens range from pale blue/purple to deep orange/brown in colour. They are available in multiple sizes and come in a white card tray with an information label.

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  • Chrome Diopside – Norway £2.00£12.00 ex VAT

    Specimens of Chrome Diopside that were collected from the Gusdal Olivine Pit, Åheim, Norway. These samples are best described as chrome bearing diopside. Diopside, a vivid green pyroxene mineral, features streaks of grey chromite that creates a stunning mineral sample that would be the perfect addition to any collection. Whilst many samples of chrome diopside tend to be crystalline in nature, our samples are unique as the feature a grainier, more crumbly texture. These specimens are in limited availability, so we recommend you move fast if you wish to add these stunning specimens to your collection. They are available in a range of sizes and come supplied in a white card tray with information label.

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  • Eclogite – Germany £2.00£25.00 ex VAT

    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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  • Epidote – USA £1.50£2.25 ex VAT

    Specimens of Epidote from Michigan, USA. In particular, they have been collected from the Laurium Mine, Osceola, Houghton County. Epidote is an abundant rock forming mineral that is most commonly green in colour. These specimens date from the Stenian period, approximetely 1 – 1.2 billion years ago. These specimens are available in limited supply, with two different size options. They come supplied in a white card tray with information label.

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  • Fossil Specimen Cards (25 cards) £1.25 ex VAT

    Fossil specimen sample cards, these cards are blank having spaces for you to write the ‘name’, ‘age/horizon’ and ‘locality’ of a rock specimen or specimens collected. Ideal for conducted field work or cataloging your collection. 73mm x 46mm.

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    3913 in stock

  • Ironstone – USA £2.00£30.00 ex VAT

    Specimens of Ironstone that have been collected from Breitung Mine, Marquette County, Negaunee, Michigan, USA. These specimens are a deep reddish brown in colour with some specimens exhibiting clear banding. Please note that banding is not visible on all pieces. These specimens are available in very limited supply with three sizes to choose from. They come supplied in a white card tray with information label.

    Additionally we also have one large display piece available, measuring approximately 18cm x 15cm at its widest points. This display specimen exhibits a distinct botryoidal texture on its top surface, making it an intriguing and appealing specimen to add to any collection.

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  • Mineral Specimen Cards (25 cards) £1.25 ex VAT

    Mineral specimen sample cards, these cards are blank having spaces for you to write the ‘name’, and ‘locality’ of a rock specimen or specimens collected. Ideal for conducting field work or cataloging your collection. 73mm x 46mm.

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    3253 in stock

  • Pink Agate (India) £1.50£6.00 ex VAT

    Specimens of Pink Agate, collected from India. Agate is a common silicate mineral and variation of chalcedony. These specimens are pale pink in colour with small to moderate amounts of brown agate present. Specimens are available in multiple sizes and come in a white card tray with an information label.

     

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  • Polyhedral Agate Display Specimen 02

    A display specimen of an uncut polyhedral agate from Paraiba, Brazil. The piece measures approximately 12.5 x 8 x 2.8 cm at its widest points and weighs roughly 277 grams.

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    1 in stock

  • Sold Out
    Quartz in Basalt (Scotland) £1.15£5.54 ex VAT

    Specimens of clear quartz crystal beds within basalt from Barras, Kincardineshire, Scotland. Pieces are supplied in a card tray with an information label. These are ideal samples for collectors of British minerals and rocks.

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    Out of stock

  • Quartz Monzonite £2.25£6.00 ex VAT

    Quartz monzonite igneous rock specimen from Ratagan, Scotland. Associated to granites, yet containing only 5% to 20% quartz, making it a monzonite, these intrusive felsice rocks are igneous in origin and are available in different sizes, supplied in a white card tray with a label.

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    28 in stock

  • Rapakivi Granite – Finland £2.00£7.00 ex VAT

    Specimens of Rapakivi Granite sourced from South Finland, which have undergone cutting and polishing. This particular rock belongs to the Granite family, and shares the typical characteristics of granite. Those being a coarse-grained, plutonic igneous rock, consisting of orthoclase feldspar, quartz, and biotite mica. Each piece comes packaged in a white card tray accompanied by an information label.

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  • Rock Specimen Cards (25 cards) £1.25 ex VAT

    Rock specimen sample cards, these cards are blank having spaces for you to write the ‘name’, ‘age/horizon’ and ‘locality’ of a rock specimen or specimens collected. Ideal for conducting field work or cataloging your collection. 73mm x 46mm.

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    1938 in stock

  • Sold Out
    Sphalerite (Leadhills) £2.07£4.03 ex VAT

    Sphalerite mineral specimens from Leadhills, South Lanarkshire, Scotland, UK. Samples are of the massive form of the zinc sulphide mineral and depicts a dull yet metallic lustre and colouration. The samples are dense and excellent for British mineral collectors.The pieces are supplied in a white card tray with an information label.

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    Out of stock

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