Rocks By Weight - Geology Superstore

Equipment and ToolsField equipment and tools can be found here with the majority of the items being for geological purposes as well as equipment which can be utilised for forrestry, surveying, land remediation, quarrying and mining and much more. Our range of equipment and tools are of the highest standard, manufactured by some of the most well known brands from around the world. We cna supply goods including compass clinometers, waterproof note pads, rock hammers, core boxes, sampling bags and much more.
UCP Core Trays
Rocks, Minerals and FossilsRock specimens available in this section. We are the UK’s leading supplier of rock specimens, by single specimens of various sizes to rocks supplied by weight in lots of 1 kg. With over 30 years years experience and 3 geologists in our warehouse, we will have what you require. Geological rock specimens are ideal for educational & private use & in collections as well as being an important part of education both with science and in geological or earth science specific subjects. Our rocks specimens are sourced from around the world, and in some cases, the majority of UK & Norwegian samples are collected by our staff members them selves.
Storage & DisplayStorage items such as specimen trays and die cut boxes can be found here such as folding card trays, boxes and cell sections. These items will allow you to safely store you geological rock, mineral or fossil specimens and collections to prevent them from damage, dust and corrosion.
- Specimen Trays
Gifts ItemsA range of blister packs and packets containing various fossils, crystals, minerals and gemstones. Ideal gifts, treats, goody bag and stocking fillers for children or for educational use.The packs come ready made and sealed (but easy to open) with labels, descriptions and accessories. All the packs are made by our selves at our warehouse in Bolton, pieces are selected from our own stock, cleaned, labelled and packed ready for your children.
Maps, Books & GuidesEntire range of Geological maps of the British isles produced & published by the British Geological Survey (BGS). Geological maps are often in 1:50 000 scales and are set out similar to OS maps, but instead details the geology of the local area from the bedrock to recent superficial deposits. We also stock the full range of 1:25 000 scale maps as well as even smaller scales. All maps are supplied folded for ease of use in the field.

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Aeolian Sandstone (1kg) £5.00 ex VAT
A Triassic red millet seed sandstone of aeolian desert origin. Samples come from Penrith, Cumbria and are supplied by weight.
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Amygdaloidal Basalt (1kg) £5.00 ex VAT
Amygdaloidal Basalt is a variety of basalt from the Isle of Skye, specimens are supplied in a polythene bag in lots of 1 kg with a label.

47 in stock
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Banded Hornfels (1kg) £4.00 ex VAT
Banded hornfels, showing excellent banded structure, samples come from Scotland and are supplied by weight in lots of 1 kilogram.

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Basalt (1kg) £5.00 ex VAT
Igneous Basalt of Tertiary age from Scotland. Specimens are typical black in colour and has a fine grained texture. Specimens are supplied in polythene bags in lots of 1 kg and are come with an information label.

77 in stock
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Bauxite – Kilo Bag £7.00 ex VAT
1 kilo of Bauxite sedimentary rock specimens from Northern Ireland, specimens are a typical earthy red or brown colour, comprised of iron and aluminium hydroxides/oxides. Bauxite was named after Baux, near St. Reny, Bouches-du-Rhône, France where it was discovered. The samples are supplied by weight in lots of 1 kilogram and will come in a polythene bag with an information card. Suitable for when large amounts are required.

15 in stock
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Biotite Gneiss (1kg) £6.00 ex VAT
Biotite Gneiss rock specimens collected from Evje, Norway. Specimens will show banding. Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Biotite Granite (1kg) £5.00 ex VAT
Coarse grained variation of granite, composed of quartz, feldspar and biotite. These samples were collected from Scotland and are ideal for educational use.
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Breccia – Calcrete (1kg) £4.00 ex VAT
This Breccia is a calcrete cemented scree deposit of Pleistocene age from the Manifold Valley in Staffordshire. Supplied by weight, comes in a thick polythene bag with an information label.

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Cannel Coal (1kg) £9.00 ex VAT
Cannel coal by it’s physical morphology and low mineral content is considered to be coal but by its texture & organic matter content it is considered to be oil shale. Available by weight in lots of 1 kilogram.
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Chalk (1kg) £5.00 ex VAT
Chalk is a fine, porous, white form of limestone of Cretaceous age. Formed from the accumulation of coccoliths in a relatively deep marine environment. Supplied by weight, sizes vary.

81 in stock
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Coal (Bituminous) – (1kg) £4.00 ex VAT
Bituminous coal is a soft sedimentary rock with a high organic content & the tar-like substance Bitumen. It is of a lower grade than Anthracite but higher grade than Lignite. Supplied in lots of 1 kg.
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Conglomerate (1kg) £5.00 ex VAT
Conglomerate with well rounded clasts from Faringdon, UK. A good example of the lithotype as opposed to a Breccia which would contain predominantly angular to sub-angular clasts. Supplied by weight in bags weighing 1 kilo.
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Coral Limestone (1kg) £4.00 ex VAT
Carboniferous coral limestone from Anglesey, North Wales. Composed largely of well preserved Lithostrotion corals, supplied in lots of 1 kilogram.

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Crinoidal Limestone (1kg) £5.00 ex VAT
Lower Carboniferous crinoidal limestone from Derbyshire, U.K. Supplie dby weight in lots of 1 kg. Comes in a polythene bag with an information label.

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Eclogite (1kg) £18.00 ex VAT
Eclogite is an uncommon rock, composed of mainly two minerals, reddish-brown garnets and Omphacite (green pyroxene). Other minerals, such as kyanite may also be present. These rocks come from Almenning, Norway. Specimens are supplied in a polythene bag in lots of 1 kg with a label.

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Estuarine Sandstone (1kg) £5.00 ex VAT
A fine grained sandstone formed in estuarine (river mouth) conditions, composed of fine quartz and mica. Available by weight in 1 kilo bags with an information label.
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Flint – Chert (1kg) £5.00 ex VAT
Chert, a hard cryptocrystalline silica found as nodules & bands within the Cretaceous Chalk. Supplied by weight in 1 kilo bags.

25 in stock
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Frosterley Marble (1kg) £4.00 ex VAT
Frosterley Marble is not a marble but a black limestone containing fossil coral specimens of Carboniferous age. The specimens are from Harewood quarry, Co. Durham, supplied by weight in lots of 1 kilogram.

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Gabbro (1kg) £5.00 ex VAT
Classic Gabbro specimens, showing typical coarse grained crystalline texture. Gabbro is an intrusive mafic igneous rock chemically similar to basalt.

44 in stock
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Garnet Amphibolite (1kg) £15.00 ex VAT
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).

Out of stock
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Garnet Mica Schist (1kg) £8.00 ex VAT
Garnet Mica Schist . The specimen is mostly muscovite mica schist with a scattering of small pink or red garnets. Collected from Scotland. Supplied by weight, pieces come as they are in various shapes and sizes up to the weight of 1 kilogram. Packed in a polythene bag with an information label.

24 in stock
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Glaucophane Schist (1kg) £18.00 ex VAT
Glaucophane Schist is also known as Blueschist. The blue-green colour comes from the dominant presence of the minerals Glaucophane (amphibole) & Lawsonite. These samples are supplied in lots of 1 kilogram and come with an information label.

15 in stock
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Gneiss – Scotland (1kg) £4.00 ex VAT
Lewisian Gneiss; Pre- Cambrian metamorphic rocks that outcrop in the North West of Scotland. Formed by high grade regional metamorphism of granites & sedimentary rocks. Supplied in lots of 1 kg.

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Graphic Granite (1kg) £10.00 ex VAT
Graphic Granite is a leucocratic igneous rock found predominantly in granitic pegmatites. It’s coarse intergrowths of feldspars display a Runic or Cuneiform configuration hence the term “graphic”

100 in stock
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Greisen (1kg) £6.00 ex VAT
Greisen are a form of granitic rock or pegmatites which have been highly altered, it is formed by autogenic alteration of a granite and is a considered an endoskarn. These samples of Greisen appear mostly yellow in colour and come from Cumbria, UK. Specimens are supplied in a polythene bag in lots of 1 kg with a label.

19 in stock
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Greywacke (1kg) £5.00 ex VAT
Greywacke, a hard, grey, poorly sorted sandstone of Silurian age. Available by weight in lots of 1 kilogram.
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Larvikite (Syenite) (1kg) £12.00 ex VAT
Larvikite found in Norway. Specimens are supplied in a polythene bag in lots of 1 kg with a label. Larvikite is defined as a monzonitic plutonic rock and is almost entirely composed of feldspar.
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Limestone (1kg) £5.00 ex VAT
Limestone, a common sedimentary rock often used in building and stone work. These samples are carboniferous in age and are supplied by weight in lots of 1 kg.

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Mahogany Obsidian (1kg) £6.00 ex VAT

This Mahogany obsidian is sourced in the United States of America. Impurities of magnesium and iron give this variety a red or brown appearance hence the name ‘mahogany obsidian’ or oak obsidian. Specimens are supplied in a polythene bag in lots of 1 kg with a label.

Out of stock
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Metaquartzite – Anglesey (1kg) £6.00 ex VAT
Metaquartzite specimens found in Anglesey, Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Microgranite (Cumbria) (1kg) £5.00 ex VAT
Micro Granite is a variation of the granite group of rocks, composed of the minerals quartz, feldspar and mica. These particular samples were collected from Threlkeld quarry, Cumbria, UK. Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Millstone Grit (1kg) £4.00 ex VAT
Carboniferous Millstone Grit found in Lancashire, once a popular building material due to its strength. Available by weight, comes in a 1 kg bag.

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Mudstone (1kg) £5.00 ex VAT
Carboniferous Mudstone found in Lancashire supplied by weight, comes in a polythene bag with an information label.
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Obsidian £6.00 – £110.00 ex VAT
Quantity
1 kg 5 kg 10kg 25 kg

Obsidian is a naturally occurring volcanic glass derived from a rapidly cooled high silica lava. Often associated with the margins of Rhyolitic lava flows. It has little or no discernable crystalline structure. Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Old Red Sandstone (1kg) £5.00 ex VAT
Devonian lower Old Red Desert Sandstone from Gloucestershire , sold loose in random sized pieces in a polythene bag by weight.

100 in stock
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Olivine (1kg) £12.00 ex VAT
This pure olivine, also known as Dunite Peridotite shows a bright green colouration. The specimens come from Norway and may contain streaks of the rare mineral Kammererite which appears silver in colour. Some specimens may be granular in texture whereas some may be more crystalline. Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Oolitic Limestone – Yorkshire (1kg) £4.00 ex VAT
Oolitic Limestone. Jurassic (Oxfordian) in age from the Malton Oolite & Coral Rag member. Generally much harder than the oolitic example from Gloucestershire. Supplied by weight with the size of pieces being random, comes in a polythene bag with an information label.

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Orthoquartzite (1kg) £4.00 ex VAT
Stiperstones Orthoquartzite from the Cambrian period. A very pure, hard, well cemented sandstone. It is normally whitish or pale grey-buff in colour with occasional streaks of impurities. Supplied by weight in lots of 1 kilogram.

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Phyllite (1kg) £6.00 ex VAT
Phyllite is a foliated metaorphic rock formed from slate which has been further metamorphosed. These specimens from Cumbria show good, fine cleavage and a silky metallic lustre. Supplied in lots of 1 kg.
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Pink Gneiss (1kg) £5.00 ex VAT
Large Pink Gneiss rock specimens collected from Evje, Norway. Specimens also contain some Biotite and show banding. Supplied in 1 kilogram polythene bags with a data label.
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Preseli Bluestone – (Dolerite) (1kg) £10.00 ex VAT
These specimens of ‘Preseli Bluestone’ are a form of Spotted Dolerite. The samples originate from the Preseli Hills of Wales, and were transported by a glacier & deposited as glacial erratics. Specimens are supplied in a polythene bag in lots of 1 kg with a label.

Out of stock
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Pumice – 500 g £4.00 ex VAT
Pumice specimens from the Lipari islands, Italy. Pumice is an igneous rock with a highly porous structure resulting from trapped gas bubbles as the lava was being ejected. The rock is usually very light & buoyant in water. Specimens are supplied in a polythene bag in lots of 500g with a label.
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Rhomb Porphyry (1kg) £5.00 ex VAT
An igneous rock exhibiting a porphyritic texture containing large cubic crystals of feldspar within a fine grained matrix. Collected near Oslo, Norway. Each sample is supplied in a labelled card tray. Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Rhyolite (1kg) £5.00 ex VAT
Rhyolite specimens found in Cumbria. Rhyolite is a felsic (silica rich) rock, often formed in highly explosive volcanoes. Specimens are supplied in a polythene bag in lots of 1 kg with a label.

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Rhyolite Felsite (1kg) £5.00 ex VAT
Rhyolite Felsite, a highly felsitic composed variation of Rhyolite, found in Scotland. Specimens are supplied in a polythene bag in lots of 1 kg with a label.
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Ribbon Banded Mudstone (Shale) (1kg) £5.00 ex VAT
Ribbon banded mudstone, Silurian in age, collected from the Denbigh grits in Wales, UK. Supplied by weight, the product will come in a 1 kilogram bag and the size of samples inside will vary.
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Shap Granite (1kg) £5.00 ex VAT
Adamellite granite also known as shap granite from Cumbria, famous for its large pink feldspar crystals his granite is well known. The samples come from the Shap Quarry, Shap Fell, Cumbria and are supplied in a polythene bag in lots of 1 kg with a label.
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Slate (1kg) £5.00 ex VAT
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from a shale-type protolith composed of clay or volcanic ash through low-grade regional metamorphism. Supplied in lots of 1 kilos, with an information label.
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Torridonian Sandstone (1kg) £5.00 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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White Marble (1kg) £5.00 ex VAT
White marble showing excellent crystal texture with a sugary appearance. Supplied by weight and come in lots of 1 kilogram bags .