Geology Superstore
Geology Superstore

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  • Agate in Basalt (Scotland) £2.88 ex VAT

    Specimens of agate within basalt from Barras, Kincardineshire, Scotland. These samples of agate have a red to white colouration and have filled the cavities of basalt. Specimens are supplied in a white card tray with an information label.

    2 in stock

  • Agglomerate £1.38£3.46 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.

    84 in stock

  • Asymmetrical Plunging Fold – Gneiss £15.00£20.00 ex VAT

    Lewisian gneiss metamorphic rock samples exhibiting asymmetrical plunging folds, ideal for educational use, the specimens come from Scotland, UK and are, some 3.0–1.7 billion years old, dating back to the Precambrian period. The rock is made of feldspar, quartz and biotite mica minerals which show banding and have folded in an asymmetrical fashion and plunged. Limited quantity available.

    • Specimen 1: 70 x 50 x 45 mm
    • Specimen 2: 100 x 75 x 50 mm

    2 in stock

  • Baryte (Scotland) £2.07£3.45 ex VAT

    Baryte specimens from Silver Glen, Alva, Clackmannanshire, Scotland. These particular specimens are pale pink – red in colour, showing slight tabular habit. Supplied in multiple sizes, with a white card tray and an information label.

    Out of stock

  • Biotite Granite £1.38£3.46 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.

    75 in stock

  • Chalcopyrite – Scotland £1.15£2.07 ex VAT

    Specimens containing small amounts of chalcopyrite and its associated minerals from Scotland. The samples contain Copper, Iron, Sulphur and other associated minerals Caledonite, Linarite, Malachite and chrysocolla. They are perfect for both display and analysis. Come supplied with white card tray and information label.

    Out of stock

  • Essexite (olivine monzogabbro)

    Essexite igneous rock specimens from Lanarkshire, Scotland, UK, also known as olivine or nepheline monzogabbro is an intrusive rock with mafic chemistry, composed of nepheline and plagioclase feldspar along with olivine, magnetite minerals as well as augite phenocrysts which exhibit euhedral crystal forms. The rock has a dense weight and overall dark colouration but attractive appearance. It is locally known as Crawfordjohns and was highly sought after as a high quality material to produce curling stones. These samples are excellent for young and older collectors as well as higher educational use, the pieces are available in three sizes and come supplied in a card tray with an information label.

    64 in stock

  • Gabbro £1.38£3.46 ex VAT

    Gabbro igneous rock specimens from Balmedie quarry, Aberdeen, Scotland which exhibit a coars grained texture from the crystals. Formed as a mafic pluton intrusion, the samples contain pyroxenes such as augite along side plagioclase feldspar, amphibole and olivine crystals. They are derived from a body known as the Belhelvie basic intrusion which the parent unit being the Caledonian Supersuite. Samples exhibit a grey colouration and density and are suitable for the more serious or professional collector or higher educational use to differentiate similar looking igneous rocks with different compositions and origins. Available in three sizes, the specimens come supplied in a card tray with an information label.

    50 in stock

  • Gabbro with Tourmaline and Pyrite (Scotland) £1.38£6.90 ex VAT

    Specimens of gabbro containing tourmaline and pyrite from Belhelvie, Aberdeenshire, Scotland. These particular samples of gabbro contain small but visible amounts of tourmaline crystals and pyrite, some pieces may also show small amounts of epidote and actinolite. These specimens are available in multiple sizes and are supplied in a card tray with an information label.

    Out of stock

  • Lepidolite in Quartz (Scotland) £2.07£2.88 ex VAT

    Specimens of milky quartz containing small amounts of lepidolite mica from Glen Gairn, Strathdon, Aberdeenshire, Scotland. These samples of quartz contain a pale lilac lepidolite mica which has a massive form. These pieces, ideal for British mineral collectors, are supplied in a white card tray with an information label.

  • Phonolite – Scotland £1.38£3.46 ex VAT

    Phonolite igneous rock specimens, an intrusive crystalline version of nepheline syenite, this rock lies between felsic and mafic composition, collected from Traprain Law, Soctland,  the name of the rock is derived from the ancient Greek word which means ‘sounding stone’. Which alludes to the feature this rock has of emitting a metallic ringing when struck. Samples are available in various sizes and come supplied in a card tray with a label.

    70 in stock

  • Porphyritic Trachyte £1.27£3.27 ex VAT

    Porphyritic trachyte from East Lothian, Scotland exhibiting excellent rhomb porphyry crystal inclusions of feldspar. These rock specimens are available in a range of sizes and will come with a tray and a data label.

    Out of stock

  • 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.

    Out of stock

  • Quartz Monzonite £1.27£3.57 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.

    Out of stock

  • Red Soapstone (Shetland Islands) £3.45£23.00 ex VAT

    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.

  • Trachyte

    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.

    20 in stock

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