biotite Archives - Geology Superstore

EQUIPMENT AND TOOLSField equipment and tools can be found here with the majority of the items being for geological purposes as well as equipment which can be utilised for forrestry, surveying, land remediation, quarrying and mining and much more. Our range of equipment and tools are of the highest standard, manufactured by some of the most well known brands from around the world. We cna supply goods including compass clinometers, waterproof note pads, rock hammers, core boxes, sampling bags and much more.
CORE TRAYS
ROCKS, MINERALS AND FOSSILSRock specimens available in this section. We are the UK’s leading supplier of rock specimens, by single specimens of various sizes to rocks supplied by weight in lots of 1 kg. With over 30 years years experience and 3 geologists in our warehouse, we will have what you require. Geological rock specimens are ideal for educational & private use & in collections as well as being an important part of education both with science and in geological or earth science specific subjects. Our rocks specimens are sourced from around the world, and in some cases, the majority of UK & Norwegian samples are collected by our staff members them selves.
STORAGE AND DISPLAYStorage items such as specimen trays and die cut boxes can be found here such as folding card trays, boxes and cell sections. These items will allow you to safely store you geological rock, mineral or fossil specimens and collections to prevent them from damage, dust and corrosion.
- SPECIMEN TRAYS
- PLASTIC DISPLAY PRODUCTS
BOOKS AND GUIDESEntire range of Geological maps of the British isles produced & published by the British Geological Survey (BGS). Geological maps are often in 1:50 000 scales and are set out similar to OS maps, but instead details the geology of the local area from the bedrock to recent superficial deposits. We also stock the full range of 1:25 000 scale maps as well as even smaller scales. All maps are supplied folded for ease of use in the field.

Biotite Granite £2.25 – £6.00 ex VAT
Biotite granite igneous rock specimens from Ballachulish, Scotland, UK. Composed of the felsic minerals quartz and feldspar, with occurrences of biotite crystals. The rock has an overall white appearance due to its felsic chemistry but the black biotite mica offers a striking contrast in colours. The samples are ideal for both collectors due to the attractive nature and for college to university level education to describe the variations in granite which one may find. The samples are available in three sizes and supplied in a card tray with an information label.

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64 in stock
Biotite Mica (Massive) – Norway £1.50 – £6.00 ex VAT
Massive Biotite Mica specimens, collected from Arendal, Norway. These specimens depict a “massive” crystal structure, as opposed to the more commonly seen sheets. Like all biotite mica, these specimens are dark in colour, exhibiting a dark grey to black hue. Mica is one of the most common mineral groups, with biotite being the most abundant member. Biotite is very common in igneous and metamorphic rocks, with the dark minerals in granites, pegmatites and gneiss often being due in some part to the presence of this black mica. This massive biotite are available in limited supply so we recommend you move fast if you wish to add a piece to your collection. Supplied in a white card tray with information label.

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Biotite Muscovite Granite £2.25 – £6.00 ex VAT
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.

We also supply Biotite Muscovite Granite thin sections for microscope study which are available to buy HERE.

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75 in stock
Diorite £2.25 – £6.00 ex VAT
Diorite rock specimens from Cockermouth, Cumbria, is an intrusive igneous rock from the Ordovician period with a coarse, phaneratic texture composed of plagioclase feldspar, biotite mica as well as hornblende with intermediate chemistry. Found with the Skiddaw group, the rock samples are more suited for serious collectors and higher level education to describe the chemistry and mineralogy of various igneous groups. Available in 3 sizes and supplied in a card tray with an information label.

We also supply Diorite thin sections for microscope study which are available to buy HERE.

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73 in stock
Garnets in Biotite £2.25 – £6.00 ex VAT
Specimens of Garnets in Biotite, collected from Agder, Norway. The garnets in these pieces are almandine garnets, which are the most popular and common variety. These specimens exhibit deep red garnet crystals within a matrix of black biotite mica. They are available in multiple sizes and come in a white card tray with an information label.

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