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Cordierite Hornfels thin section microscope slide exhibiting a dark colour and a characteristic none crystalline form. Fine grains fit together like the fragments of a mosaic, this is often referred to as rough pavement or pavement structure. Larger crystals of cordierite can be seen scattered throughout the fine matrix.
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Cordierite Hornfels thin section microscope slide exhibiting a dark colour and a characteristic none crystalline form. Fine grains fit together like the fragments of a mosaic, this is often referred to as rough pavement or pavement structure. Larger crystals of cordierite can be seen scattered throughout the fine matrix. Cordierite is a common component of hornfels produced by the contact metamorphism of pelitic rocks. Shales, slates and clays are metamorphosed to yield biotite hornfels represented by these particular thin sections. The samples from which the thin sections were cut was collected near Carrock Fell, Cumbria. Each 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 and educational purposes.
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Banded hornfels exhibiting an alternating band feature, likely due to the original rock being layered such as sandstone, shale etc. The specimens come from Kentellen, Scotland, are available in different sizes and come in a card tray, suitable for school use.
10 in stock
Slate microscope thin section slide exhibiting a slight slaty fabric formed by the growth of mica. This material was collected from North Wales and dates back to the Cambrian period. The glass is 46 x 27 mm in size, supplied in a protective card sleeve with a label, ideal for microscopy, petrography & educational use.
8 in stock
Phyllite thin section microscope slide exhibiting textbook crenulated cleavage and occasional garnets ideal for those who want to practice the recognition of metamorphic textures in thin section. The glass is 46 x 27 mm in size, supplied in a protective card sleeve with a label, ideal for microscopy, petrography & educational use.
9 in stock
This variation of Hornfels exhibits strong banding with small crystals of Cordierite.The samples were collected from near Carrock Fell. Cumbria, UK.
We also supply Cordierite Hornfels thin sections for microscope study which are available to buy HERE.
33 in stock
Hornfels, dark blue or black in colour collected from Shap quarry, Cumbria, a strong, durable rock, splintery when broken is comprised of mafic minerals, the rock may also exhibit acoustic properties. Supplied in a sized up card tray with an information label.
We also supply Hornfels thin sections for microscope study which are available to buy HERE.
28 in stock
Hornfels thin section microscope slide exhibiting a dark colour and a characteristic none crystalline form. Fine grains fit together like the fragments of a mosaic, this is often referred to as rough pavement or pavement structure. Larger quartz clasts are visible but these have recrystallised to form a fine, interlocking mosaic of quartz within the original grain cast.
4 in stock
Gabbro thin section exhibiting some of the textbook features one would expect from this coarse, mafic igneous rock. These slides supplement the hand specimens nicely and are useful for interpreting the crystalisation history of the rock.
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.
Out of stock
Big feldspar gabbro thin section exhibiting exactly what its name describes, feldspar crystals much larger than those present in the ordinary gabbro which we supply. Characteristic twinning in the plagioclase and the bright colours of the pyroxene make for an attractive thin section, perfect for educational use.
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.
7 in stock
Glaucophane Schist thin section microscope slide exhibiting a clear fabric and a wonderful blue hue under plane polarised light. This material was collected from the Isle of Anglesey, North Wales. Each section is made to 30 microns thickness and the glass is 46 x 27 mm, ideal for microscopy and educational purposes.
6 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
Microgranite thin section slide exhibiting the medium grained nature of this intrusive igneous rock. The crystals in microgranite are smaller than those of normal granite indicating that it cooled at a quicker rate.
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.
7 in stock
Hornblende Gneiss thin section slide exhibiting an abundance of the mafic mineral hornblende, accompanied by less abundant biotite mica, quartz and feldspar. This material was collected by staff from Southern Norway. Each section is made to 30 microns thickness and the glass is 46 x 27 mm in size, ideal for microscopy and educational purposes.
2 in stock
Amygdaloidal basalt thin section slide exhibiting amygdaloids of varying sizes within a fine grained basaltic ground mass. This particular material was collected from the Isle of Skye, Scotland. Each 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
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
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
Pumice thin section slide exhibiting the highly vesicular nature of this extrusive igneous rock. Pumice lavas tend to be silicic or felsic which are highly viscous thus do not allow the gas bubbles to escape efficiently.This material was collected from the Lipari islands of Italy.
9 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
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
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