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Bituminous coal thin section slide.These thin sections exhibit more air pockets then their anthracite counterpart as to be expected being the less pure, more volatile rich variety. The slides are 30 microns thick and measure 46 x 27 mm in size.
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Bituminous coal thin section slide. Bituminous coal and indeed all other varieties of coal are classed as organic sedimentary rocks. The bituminous variety contains between 60 and 80% carbon, the remainder is composed of residual water, air, hydrogen, and sulphur i.e. the volatiles. These thin sections exhibit more air pockets then their anthracite counterpart as to be expected being the less pure, more volatile rich variety. The slides are 30 microns thick and measure 46 x 27 mm in size and have a cover slip of the section along with a protective cardboard sleeve.
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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.
88 in stock
Cannel coal thin section microscope slide exhibiting the highly organic nature of this sedimentary rock. This material was obtained from the Alexander open cast pit in Wigan, Lancashire. Ideal for microscopy, petrography & educational use.
10 in stock
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. Although historically the term cannel coal has been used interchangeably.
We also supply Cannel Coal thin sections for microscope study which are available to buy HERE.
200 in stock
Anthracite coal microscope slides for viewing the magnified crystals which make up these rock specimens, excellent for enthusiasts and educational use, the slide exhibits the almost carbon content nature of anthracite, made to 30 microns thick, each slide comes supplied with a cover slip and cardboard sleeve.
9 in stock
Specimens of Bituminous Coal, collected from the Carboniferous deposits in Yorkshire. Bituminous Coal is an organic sedimentary rock, that forms by diagenetic and sub metamorphic compression of peat bog & swamp material. Its primary constituents are macerals: vitrinite, and liptinite. The carbon content of bituminous coal is around 60-80%. The rest consists of residual water, air, hydrogen, and sulphur. These specimens are available in multiple sizes and come in a white card tray with an information label.
We also supply Bituminous Coal thin sections for microscope study which are available to buy HERE.
Anthracite coal specimens, a vitreous, high grade coal with a hard and compact nature, these samples are from the Carboniferous coalfields of South Wales, UK and are one of the coals which have fewer impurities and a high carbon contents. Available in optional sizes, each sample will come supplied in a card tray with a label.
We also supply Anthracite Coal thin sections for microscope study which are available to buy HERE.
193 in stock
Welded tuff thin section slide exhibiting a jumbled mass of irregularly sized broken clasts held in situ by finer ash particles which have become welded together. This material was collected from Cumbria, the original rock is likely rhyolite, and indeed in hand specimen the tuff almost still looks like rhyolite and appears to show a form of banding.
6 in stock
Rhomb porphyry thin section exhibiting the textbook porphyritic texture of this rare igneous rock. The thin section shows a fine grained alkali feldspar groundmass with large phenocrysts of augite. This material was collected near Oslo in Norway.
11 in stock
Metaquartzite thin section slide exhibiting a fine, interlocking mosaic of quartz crystals characteristic of this metamorphic rock. Each section is made to 30 microns thickness and the glass is 46 x 27 mm, ideal for microscopy and educational purposes.This material was collected near Holyhead on the Isle of Anglesey, North Wales.
7 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
Stunning peridotite thin section exhibiting the bright and beautiful colours of olivine and pyroxene punctuated by relatively abundant plagioclase. Peridotite is a dense, coarse grained, ultramafic igneous rock consisting largely of olivine and pyroxene.
7 in stock
Travertine thin section slide. Travertine is a form of limestone deposited by mineral rich springs, especially hot springs. It is formed by the rapid precipitation of calcium carbonate, often at the margins of a hot spring or in a limestone caves.
6 in stock
Oolitic limestone thin section slide exhibiting textbook ooid grains, some with a clear nucleus and concentric calcareous layers. These microscope slides supplement the hand specimens nicely and allow for a more detailed view of the ooid grains and an opportunity to intepret the diagenetic history of the rock.
8 in stock
Purbeck Limestone thin section slide exhibiting densely pack shells of varying fauna. This rock is particularly interesting in thin section; numerous shells from varying organisms such as bivalves and gastropods along with numerous signs of mineral replacement and dissolution offers an opportunity to interpret the complex diagenetic history of the rock.
9 in stock
Cretaceous sandstone thin section slide exhibiting the well sorted, fine and rounded nature of this arenaceous sandstone.The slides are 30 microns thick and measure 46 x 27 mm in size and have a cover slip of the section along with a protective cardboard sleeve.
11 in stock
Diorite thin section slide. Diorite is a grey to dark-grey intermediate intrusive igneous rock composed principally of plagioclase feldspar (typically andesine), biotite mica, hornblende, and/or pyroxene. This particular material was collected in Cumbria.
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.
6 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
Shale microscope slide showing thin black lenses of organic matter (in XPL view) which fell from suspension in very low energy environments. The section is made to 30 microns thickness and the glass is 46 x 27 mm in size with a cover slip. Supplied in a protective card sleeve with a label, ideal for microscopy.
5 in stock
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