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PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
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Carboniferous coral limestone from Anglesey, North Wales. Composed largely of well preserved Lithostrotion corals, supplied in lots of 1 kilogram.
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Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.
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Phone: +1 (23) 456 789
These coral limestone from Anglesey were laid down in the Palaeozoic shallow tropical seas around 300 million years ago in the Carboniferous. This rock is primarily composed of Lithostrotion corals who’s internal structure can be seen beautifully preserved in some specimens. These samples are supplied by weight with size of pieces varying. They come packed in a polythene bag with an information label.
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Specimens of Oolitic Limestone, collected from Gloucestershire in the UK. Oolitic Limestone is a carbonate rock, that consists mostly of ooliths (or ooids). These are sand-sized carbonate particles (0.25 -2.0mm) built up of concentric shells of precipitated calcium carbonate (CaCO3). These layers form around sand grains or shell fragments that roll around on a shallow sub tropical sea floor, gathering layers of carbonate. Around the Cotswold Hills, the honey coloured stone has been the favoured building material for centuries. Many local picturesque hamlets showcase this. These specimens tend to be a little more friable than the examples from Yorkshire. These specimens are Mid Jurassic in age. They are available in multiple sizes and supplied in a white card tray with information label.
We also supply Oolitic Limestone thin sections for microscope study which are available to buy HERE.
300 in stock
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.
Specimens of Purbeck Limestone, collected from the Isle of Purbeck, Dorset, in the UK. Purbeck Limestone is a fossiliferous limestone that dates from the Upper Jurassic to Lower Cretaceous period. Its deposition environment is a fresh to brackish water environment with occasional marine incursions. It’s characteristic appearance comes from densely packed shells of the freshwater snail Viviparus set in a lime mud matrix. It’s uses include construction as a building and decorative stone which is visible in Canterbury, Lincoln, Salisbury cathedrals & Westminster Abby to name but a few. These specimens are available in multiple sizes and come in a white card tray with information label.
We also supply Purbeck Limestone thin sections for microscope study which are available to buy HERE.
193 in stock
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.
Specimens of Coral Limestone, collected from Anglesey. 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. These specimens date to the Palaeozoic era around 300 million years ago. They were laid down in shallow tropical seas around 300 million years ago, in the Carboniferous. The composition of these specimens is primarily Lithostrotion corals. They are available in multiple sizes and come supplied in a white card tray with an information label.
We also supply Coral Limestone thin sections for microscope study which are available to buy HERE.
50 in stock
Rhyolite thin section slide exhibiting the fine grained nature of this felsic igneous rock. The thin section shows a silica rich mineral assemblage of fine grained quartz and plagioclase. Accessory minerals present include biotite mica and hornblende. This material was collected from Cumbria, UK.
7 in stock
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
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
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
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.
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.
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 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.
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. They are supplied in a small white tray with an information label.
We also supply Microgranite thin sections for microscope study which are available to buy HERE.
193 in stock
This granite pegmatite contains large sheets of muscovite mica, orthoclase feldspar and quartz matrix. An excellent teaching material which comes from Southern Norway. Each specimen comes in a labelled card tray.
Out of 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
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
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