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PLASTIC DISPLAY PRODUCTS
£8.00 ex VAT
Carboniferous Mudstone found in Lancashire supplied by weight, comes in a polythene bag with an information label.
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Mudstone is a very fine grained sedimentary rock composed of clay minerals & silt sized quartz grains that lacks a well developed bedding structure or fissility. This lithology is typically associated with low energy environments such as tidal flats, lakes or deep marine. This example is from the Carboniferous of Lancashire and is instead supplied in various random sizes by weight.
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Specimens of Shale, collected from Yorkshire. Shale is a fine grained, clastic sedimentary rock composed of mud. This mud is a mixture of clay mineral flakes and tiny fragments of other minerals, especially quartz and calcite. Shale is characterised by thin laminae, parallel layering or bedding, less than one centimetre in thickness. This makes the rock very fissile. Shales are associated with quiet water deposition, such as in lakes, lagoons or deltas. For these specimens in particular, the depositional environment was deep water marine from the Jurassic formations of the Yorkshire coast. These specimens are available in multiple sizes and come supplied in a white card tray with information label.
We also supply Shale thin sections for microscope study which are available to buy HERE.
176 in stock
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.
Specimens of Banded Mudstone, collected from Crummackdale in West Yorkshire, UK. These specimens are known locally as the Moughton Whetstone and are Silurian in age. Whilst their origins are uncertain, experts believe the concentric bands to be Liesegang rings. The mudstone is very hard and fine grained, which makes it an ideal honing stone. These specimens are available in multiple sizes and come in a white card tray with an information label.
20 in stock
Specimens of Ribbon Banded Mudstone, collected from North Wales. In particular, these specimens are Silurian in age & specifically from the Nantglyn Flag Group of the Denbigh Grit Formation. This largely grey rock shows alternating bands of fossiliferous mudstone and laminated muddy siltstone with subordinate thin pale green to yellowish lenticular bands of calcareous siltstones. These specimens are available in multiple sizes and come supplied in a white card tray with an information label.
294 in stock
Specimens of Mudstone, collected from Lancashire. Mudstone is a very fine grained sedimentary rock, that consists of clay minerals and tiny quartz grains. Mudstone lacks a well developed bedding structure or fissility. This lithology is typical of low energy environments, such as tidal flats, lakes or deep marine environments. These specimens date to the Carboniferous period, approximately 359 – 299 million years ago. The specimens are availeable in multiple sizes, and come in a white card tray with an information label.
We also supply Mudstone thin sections for microscope study which are available to buy HERE.
300 in stock
Siltstone is a fine grained clastic rock which may or may not show laminations. Occasionally fossiliferous. This example is from the Carboniferous deposits around Huddersfield, Yorkshire.
We also supply Siltstone thin sections for microscope study which are available to buy HERE.
200 in stock
Rhyolite specimens found in Cumbria. Rhyolite is a felsic (silica rich) rock, often formed in highly explosive volcanoes. Specimens are supplied in a card tray with label.
We also supply Rhyolite thin sections for microscope study which are available to buy HERE.
57 in stock
Specimens of Limestone, collected from Derbyshire. Limestone is a common, well known sedimentary rock. It consists of the calcium-rich shells, bones, and skeletons of the fauna that dominated during that period. It was laid down approximately 350 million years ago in semi tropical seas and comes from the Dinantian epoch of the Lower Carboniferous. This rock is very pure, about 98% soluble in rainwater (over time) leaving only residual clay. Its uses include aggregate, building stone, the manufacture of cement, paper & calcium carbide. Available in various sizes, each piece comes supplied in a white card tray with information label.
We also supply Limestone thin sections for microscope study which are available to buy HERE.
100 in stock
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.
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.
Snowflake obsidian is quite striking in appearance. It is characterised by the inclusion of radially clustered crystals of cristobalite, which when viewed at a glance, appear like snowflakes on the surface of the rock. These crystal clusters are set in an otherwise black vitreous matrix of obsidian, which is an naturally occurring volcanic glass, even exhibiting a conchoidal fracture. Cristobalite is a high temperature polymorph of silica, it can form as a result of the devitrification of the obsidian. These specimens come from Java, Indonesia and are supplied in card trays, sizes which are optional, each tray also has a small data label supplied.
We also supply Snowflake Obsidian thin sections for microscope study which are available to buy HERE.
Rhyolite Felsite, a highly felsitic composed variation of Rhyolite, found in Fife, Scotland, an extrusive igneous rock composed of sodium, quartz and feldspar, thus often having a pale white to pink colouration. Available in various sizes and supplied in a card tray with an information label.
32 in stock
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.
5 in stock
Obsidian, also known as ‘volcanic glass’ is a felsic, extrusive igneous rock. Crystal growth is minimal / absent within obsidian due to rapid solidification rates which inhibit crystal growth thus giving the rock a glassy appearance.
4 in stock
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.
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.
138 in stock
Granite adamellite thin section slide exhibiting crystals of quartz, biotite and feldspar. We collected this material from the famous Shap Fell quarry, in Cumbria hence the rocks alternative name ‘ Shap Granite ‘.
We provide a full range of igneous, sedimentary, metamorphic and mineral thin sections. Click here to view them. Should you require a microscope, they can be found here.
8 in stock
Shap granite igneous rock specimens from Shap Fell, Cumbria, UK which exhibit typical coarse grained crystalline textures expected of intrusive felsic rocks, being composed of quartz, plagioclase and orthoclase feldspar and biotite mica. This popular granite is very sought after for a variety of applications and has a colourful appearance. It is believed to have formed during the early Devonian period as a plutonic intrusion in the area and is quarried extensively. Samples are ideal for collectors of all levels and ages as well as all educational levels as the minerals can be easily described with the origin and processes being suitable to teach higher level students. Samples are available in three sizes and come supplied in a card tray with an information label.
We also supply Shap Granite thin sections for microscope study which are available to buy HERE.
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