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Lewisian gneiss metamorphic rock samples exhibiting asymmetrical plunging folds, ideal for educational use, the specimens come from Scotland, UK and are, some 3.0–1.7 billion years old, dating back to the Precambrian period. The rock is made of feldspar, quartz and biotite mica minerals which show banding and have folded in an asymmetrical fashion and plunged. Limited quantity available.
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Hand samples of Lewisian gneiss from Scotland, UK which exhibit asymmetrical plunging folds within them. The hand samples show clearly, banding in the metamorphic rock, particularly between the different minerals, such as the pale coloured feldspars and quartz and the darker coloured minerals of biotite mica. However, these hand samples show folding quite clearly, making them excellent as teaching material. The folds are asymmetrical with the axial plane of the anticline being off centre (not straight up/equal on each side), but not quite overturned, likely from tectonic movement hundred of millions of years ago. The rock its self is date to the Precambrian period, some 3.0–1.7 billion years old, we only have two specimens which exhibit such good folding, each piece will come supplied in a card tray with a small identification label.
Weight | N/A |
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Dimensions | N/A |
Specimen | Specimen 1, Specimen 2 |
Species Name: Brachyrhynchus sp.
Family: Fish
Age: Miocene, 23 – 5 million years old.
Location: Florida, USA
A field guide containing various pages which are based on the munsell colour system to aid in the identification of rocks whilst working in the field.
5 in stock
Species Name: Pliosaur Vertebra – Liopleurodon sp.
Family: Pliosaur
Age: Jurassic, Kimmeridgian, approximately 152 to 157 million years old.
Location: Weymouth, Dorset, UK
The metamorphic rock texture card is made for earth science students, it displays numerous bites of information on how to determine an metamorphic rock specimen found in the field via their observable features. The cards have been laminated, making them waterproof, small, the size of a bank card and an excellent to hand guide for students, amateurs and professionals.
Species Name: Loose fish Coprolite
Family: Fish
Age: Oxford Clay, Jurassic, 145 to 201 million years old.
Location: Orton, Peterborough, Cambridgeshire
Out of stock
The sedimentary rock texture card is made for earth science students, it displays numerous bites of information on how to determine an sedimentary rock specimen found in the field such as grain size, texture and an indication to the energy required to form the rock. The cards have been laminated, making them waterproof, small, the size of a bank card and an excellent to hand guide for students, amateurs and professionals.
Agglomerate igneous rock specimens from Scotland, UK. A coarse grained, hard blocky rock exhibiting a conglomeration of various minerals and igneous material of volcanic origin. These samples formed part of the Glen Coe caldera and are apart of the upper streaky andesite unit, the exhibit poor sorting and orientation of material which indicates a somewhat violent origin but this can vary from agglomerates by location and is mainly down to the chemistry of the igneous material. The samples are available in 3 sizes and come supplied in a card tray with a label, they are suitable for educational use to show the different types of volcanic rocks produced as well as those interested in collecting rock samples.
84 in stock
The Estwing E6-24PC geological hammer, also known as the ‘Big Blue’ hammer is a pointed tip strike tool which features a wider flat face, delivering more force per strike, making breaking and crushing of rock much easier. It also features a pointed tip, suitable for picking and prying material as well as allowing careful extraction of fossils or crystals from matrix. The hammer is made from a single piece of drop forged American steel and utilises a anti shock vinyl handle for comfort.
Technical Specification:
4 in stock
The Estwing E3-20BLC is a 20 ounce (566 gram) geological hammer with a chisel edge head to cut, split or pry rocks or a flat face to break or crush material. The hammer is made from drop forged American steel with an anti-shock vinyl grip. An excellent hammer and the best in the industry, the Estwing E3-20BLC is the bench mark for geological hammers.
Technical Specification:
14 in stock
Biotite muscovite granite specimens from St. Austell in Cornwall, UK of Permian age is a coarse grained igneous rock composed of quartz, plagioclase feldspar, biotite and muscovite. The rock is part of the St. Austell pluton which formed 280 million years ago. An off white colour with gold and black flecks of micas, the rock has a unique chemistry and resulted in the rich mineralisation of ores in the area. The samples are suitable for collectors and educational use to show granite variants, available in three sizes. Each piece will come supplied in a card tray with an information label.
79 in stock
Augite granophyre igneous rock specimens from Carrockfell, Keswick in Cumbria, UK. Excellent pieces exhibiting a medium grain size of crystals which constitute this rock including, augite, quartz and feldspars and shows a granophyric texture. Suitable for avid collectors and higher educational use, the samples come supplied in a sized card tray with an information label.
88 in stock
The igneous rock texture card is made for earth science students, it displays numerous bites of information on how to determine an igneous specimen found in the field such as grain size, silica and mineral content and other observable features. The cards have been laminated, making them waterproof, small, the size of a bank card and an excellent to hand guide for students, amateurs and professionals.
148 in stock