- “Bringing The Past, Into the Future”
- +44 (0) 1204 388754
PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
£2.25 – £3.50 ex VAT
Dolostone or dolomite rock is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO3)2. Most dolostones formed as a magnesium replacement of limestone or lime mud prior to lithification. It is resistant to erosion & less soluble than limestone in weakly acidic groundwater. Technically, dolostone has a stoichiometric ratio (reaction & product ratio) of nearly equal amounts of magnesium and calcium. This particular example comes from the Clitheroe area of Lancashire. Specimens are supplied in labelled card trays.
We ship to all 50 states, Washington DC.
All orders are shipped with a UPS tracking number.
Always free shipping for orders over US $200.
During sale periods and promotions the delivery time may be longer than normal.
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.
Give us a shout if you have any other questions and/or concerns.
Email: contact@mydomain.com
Phone: +1 (23) 456 789
Dolostone or dolomite rock is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite, CaMg(CO3)2. Most dolostones formed as a magnesium replacement of limestone or lime mud prior to lithification. It is resistant to erosion & less soluble than limestone in weakly acidic groundwater. Technically, dolostone has a stoichiometric ratio (reaction & product ratio) of nearly equal amounts of magnesium and calcium. This particular example comes from the Clitheroe area of Lancashire. Specimens are supplied in labelled card trays.
Weight | 120 g |
---|---|
Specimen Size | 2" x 2", 3" x 2" |
|
|
0% |
|
|
0% |
|
|
0% |
|
|
0% |
|
|
0% |
Dolomite crystal beds, pink in colour form Morocco, the presence of manganese results in a pale pink hue, these mineral specimens also have larger crystals than the UK material and are higher quality. Available in various optional sizes, supplied in tray with a data label.
50 in stock
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
Specimens of Crinoidal Limestone, collected from Derbyshire in the UK. 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 limestone in particular contains crinoids which are a group of ancient marine invertebrates, and part of the sea lily family. Specimens are available in various sizes and come supplied in a white card tray with information label.
We also supply Crinoidal Limestone thin sections for microscope study which are available to buy HERE.
288 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
Dolomite microscope slide with extreme birefringence in XPL and varied relief in PPL. Excellent to observe the nature of the minerals and interpret the history of the rock. The glass slide is 46 x 27 mm in size, suitable for enthusiasts, educational use and more, it will come in card sleeve with a label.
6 in stock
Specimens of Old Red Sandstone, collected from Gloucestershire in the UK. The Old Red Sandstone describes a suite of sedimentary rocks deposited in a variety of environments primarily during the Devonian period, but also extending back to the late Silurian, and on into the earliest parts of the Carboniferous. Alluvial sediments and conglomerates dominate at its base, then progresses to a combination of aeolian, lakes and river sediments. The familiar red colour of the rocks from the presence of Iron Oxide. These specimens are Lower Devonian in age, fine grained and pinkish red in colour. Available in multiple sizes, they come supplied in a white card tray with information label.
We also supply Old Red Sandstone thin sections for microscope study which are available to buy HERE.
174 in stock
Specimens of Sandstone, collected from Philpots Quarry, West Sussex, in the UK. This sandstone is from the Wealden Group (Hastings sub-group), which dates it to the Lower Cretaceous. This makes these rocks approximately 110 million years old. This Cretaceous sandstone is yellow to buff in coloured, and particularly fine grained. It exhibits large scale cross bedding, which is indicative of fast flowing tidal currents. It is quite soft , friable and flaggy in places and so is extracted mainly for concreting and building sand. These specimens are available in multiple sizes and come supplied in a white card tray with information label.
We also supply Cretaceous Sandstone thin sections for microscope study which are available to buy HERE.
43 in stock
Specimens of Millstone Grit, collected from Horwich, Bolton in the UK. Millstone Grit is part of the sandstone family and ranges from fine to very coarse grained. It is a feldspathic sandstone, interbedded with grey siltstones and mudstones, with subordinate marine shaly mudstone, claystone, coals and seatearths. It is Carboniferous (Namurian) in age and laid down in estuarine to tidal environments. Millstone Grit forms many prominent features throughout the north of England. These specimens are available in multiple sizes and come supplied in a white card tray with an information label.
We also supply Millstone Grit thin sections for microscope study which are available to buy HERE.
86 in stock
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
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 Travertine, collected from Yorkshire,UK. Travertine is a type of limestone which forms by the rapid precipitation of calcium carbonate, often at the margins of a hot spring or in limestone caves. It often has a fibrous or concentric banded appearance. Travertine is typically white or buff in colour, but can range through to orange and brown occasionally. It tends to be much denser and more compact than Tufa, and has notable uses as a decorative stone. Specimens are available in multiple sizes and come supplied in a white card tray with an information label.
We also supply Travertine thin sections for microscope study which are available to buy HERE.
36 in stock
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. Available in card trays with labels.
Out of stock
Specimens of Chalk, collected from Yorkshire, in the UK. Chalk is a soft, white, porous sedimentary carbonate rock and form of limestone. It forms in reasonably deep marine conditions, by the gradual accumulation of minute calcite plates, known as coccoliths, which shed from micro-organisms called coccolithophores. Additionally, it is not uncommon to find flint or chert nodules embedded in chalk. These specimens are Cretaceous in age, available in multiple sizes, and supplied in a white card tray with information label.
We also supply Chalk thin sections for microscope study which are available to buy HERE.
266 in stock
Specimens of Conglomerate, collected from Farringdon, Berkshire in the UK. Conglomerate is a term used to describe a group of coarse grained sedimentary rocks, featuring large well rounded clasts in a finer grained matrix. They were laid down in a high energy environment, either fluvial, alluvial or shallow marine. The roundness of the clasts can be an indicator of the transport distance or the action of sustained erosion. These specimens are available in multiple sizes and come supplied in a white card tray with an information label.
We also supply Conglomerate thin sections for microscope study which are available to buy HERE.
200 in stock
Specimens of Fault Breccia, collected from Great Langdale, Cumbria in the UK. Breccia is a term used to describe a coarse grained sedimentary rock, with large angular clasts, surrounded by a finer grained matrix. The clasts in these specimens are cemented with calcrete which is formed on calcareous materials as a result of climatic fluctuations in arid and semi arid regions. These specimens are fault breccia meaning that unlike other breccia they were formed by tectonic forces making it a tectonite. Available in multiple sizes, each specimen is supplied in a white card tray with information label.
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
Specimens of Lignite (Brown Coal), collected from Germany. Lignite is a soft, combustible sedimentary rock which forms by the natural compression of peat material. It has a high carbon content 25 – 35% & a moisture content up to 66%. The high volatile matter content makes it easier to convert into gas and liquid petroleum products than higher ranking coals. It is used almost exclusively for the generation of electricity in countries such as Greece & China. These pieces are Miocene in age. They are available in multiple sizes and come in a white card tray with an information label.
We also supply Lignite thin sections for microscope study which are available to buy HERE.
87 in stock
Reviews
There are no reviews yet.