rock Archives - Geology Superstore

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10 Specimen Metamorphic Rock Set £19.00 ex VAT
A ten specimen metamorphic rock set produced by our selves at our warehouse in the UK, the set comprises of ten samples picked out to details textures and features such as foliation, banding, high temperature or pressure minerals and more pertaining to the various grades of metamorphism. The samples sit within a plastic cell inset which its self is housed within a blue sturdy card box with a lid. The inside of the lid also has a colour photo key chart which exhibits pictures of the specimens as well as names and locations they are from. An excellent basic set for educational use or as a gift.
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Accretionary Lapilli Tuff
Accretionary lapilli tuff is an igneous pyroclastic rock, these samples come from Longsleddle, Cumbria in the UK and forms when hot ash and debris is ejected from as volcano. Some of this material is held together by moisture and once heavy enough, falls into the ash below forming small ‘spots’ within the material, creating a speckled rock. The samples are suitable both for young and serious collectors as well as educational use and are supplied in various sizes with a card tray and label.

69 in stock
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Agate in Basalt (Scotland) £2.88 ex VAT
Specimen Size
2" x 2"
Specimens of agate within basalt from Barras, Kincardineshire, Scotland. These samples of agate have a red to white colouration and have filled the cavities of basalt. Specimens are supplied in a white card tray with an information label.

2 in stock
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Agglomerate £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"
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
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Amygdaloidal Basalt
Amygdaloidal basalt is an igneous rock which is extrusive in nature, these specimens formed over 60 million years ago during the Tertiary period and come from Ireland. They are part of the Antrim lava group and exhibit a dark colouration with occurrences of amygdales containing quartz and calcite crystals. As a basalt they are somewhat dense, but lighter than pure samples due to the cavities within them which formed as a result of gaseous activity during their ejection. Over time, hydrothermal fluids pass through the rock and minerals form within the cavities, which gives the usually dark coloured rock a speckled appearance. These samples are available in various sizes and are suitable for higher educational use to detail the subtle differences between similar igneous rocks, they come supplied in a card tray with an information label.

73 in stock
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Andesite
Andesite igneous rock specimens of late Ordovician age which form part of the Barrowdale volcanic group. The rocks come from Cumbria, UK and have a dark colouration with a blue tint and may contain augite crystals. The rocks are intermediate in chemistry and suitable for higher level education to explain the difference in various igneous groups. Samples are available in 3 sizes and will come supplied in a card tray with an information label.

53 in stock
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Asymmetrical Plunging Fold – Gneiss £15.00 – £20.00 ex VAT
Specimen
Specimen 1 Specimen 2
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.
- Specimen 1: 70 x 50 x 45 mm
- Specimen 2: 100 x 75 x 50 mm
2 in stock
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Augite Andesite £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Augite andesite igneous rock specimens from Thirlmere, Cumbria, UK which are of late Ordovician age which form part of the Barrowdale volcanic group. The samples are of intermediate composition and contain phenocrysts of the pyroxene mineral, augite, giving the normally dark blue rock a black speckled appearance. The samples are available in 3 sizes and come supplied in a card tray with a label.

100 in stock
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Augite Granophyre
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.

89 in stock
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Banded Tuff £2.62 ex VAT
Specimen Size
3" x 2"
Banded tuff rock specimens from Cumbria, UK. An extrusive igneous rock with a felsic chemistry and rhyolitic texture, the specimen exhibit a pink colouration due to the presence of feldspar as well as banded formations. Available in various sizes and supplied in a card tray with a label.

Out of stock
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Basalt £1.38 ex VAT
Specimen Size
2" x 2"
Basalt igneous rock specimens from, Ireland, which formed during the Tertiary period approximately 60 million years ago. A dense, fine crystalline, dark coloured rock which forms at extrusive igneous bodies and contains olivine alongside with various pyroxene minerals such as augite along with plagioclase as well. The samples are available in 3 sizes and come supplied in a white card specimen tray with a label. Being so common and an important igneous rock, it is suitable for educational use as they are one of the introductory and staple rocks that students are often shown when entering earth sciences.

42 in stock
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Biotite Granite £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
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.

75 in stock
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Biotite Muscovite Granite
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.

81 in stock
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Estwing Big Blue Geological Hammer E6-24PC £83.71 ex VAT
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:
- Model – E6-24PC
- Head weight – 737 grams (24 oz)
- Head Face: 1 1/8″
- Construction – Drop forge
- Material – American steel
- Finish: Steel, painted blue
- Handle – steel with anti-shock vinyl grip
- Edge – Pointed tip
- Made in the United States of America
1 in stock
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Estwing Geological hammer E3-20BLC £66.20 ex VAT
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:
- Model – E3-20BLC
- Head weight – 566 grams (20 oz)
- Construction – Drop forge
- Material – American steel
- Finish: Brushed steel
- Handle – steel with anti-shock vinyl grip
- Edge – chisel edge
- Made in the United States of America
10 in stock
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Flint – Devon £1.61 – £2.88 ex VAT
Specimen Size
2" x 2"3" x 2"
Flint is a variety of chert and a hard sedimentary rock of the silicate family with a conchoidal fracture. It exhibits a monochromatic colour scheme with a dark grey or black interior contrasted with a vibrant white exterior. It was collected from South Devon, and comes supplied in a card tray with an information label.
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Garnet Peridotite £3.45 – £9.20 ex VAT
Specimen Size
1.5 " x 1.5"2" x 2"3" x 2"4" x 3"
Garnet peridotite igneous rock specimens found in the Gusdal Olivine Pit, Åheim, Norway is an ultra mafic rock which contains high pressure and temperature minerals such as olivine and garnet crystals. Exhibiting a green colouraiton with striking red spots, these samples were pushed up to the earths crust during the Caledonian orogeny during the Ordovician and Devonian period over 400 million years ago. The specimens are dense as expected and are ideal for children and serious collectors because of the colourful appearance as well as for higher educational use to describe deep mantle material as well as orogenic processes. The hand samples are available in various sizes and come supplied in a card tray with an information label.

196 in stock
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Igneous Rock Texture Card £1.25 ex VAT
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.

161 in stock
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Ignimbrite Welded Tuff £1.38 – £3.46 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Ignimbirte welded tuff is a pyroclastic rock of any origin formed through volcanic processes, the rock appears to show streaks of welded material on some surfaces and appears to be rhyolitic on the inside. Specimens come from Cumbria and are available in various sizes.

81 in stock
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Metamorphic Rock Texture Card £1.25 ex VAT
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.
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Munsell Rock Chart £120.00 ex VAT
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.

6 in stock
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Quartz in Basalt (Scotland) £1.15 – £5.54 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"4" x 3"
Specimens of clear quartz crystal beds within basalt from Barras, Kincardineshire, Scotland. Pieces are supplied in a card tray with an information label. These are ideal samples for collectors of British minerals and rocks.

Out of stock
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Quartz Monzonite £1.27 – £3.57 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Quartz monzonite igneous rock specimen from Ratagan, Scotland. Associated to granites, yet containing only 5% to 20% quartz, making it a monzonite, these intrusive felsice rocks are igneous in origin and are available in different sizes, supplied in a white card tray with a label.

Out of stock
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Red Soapstone (Shetland Islands) £3.45 – £23.00 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"4" x 3"5" x 3.5"
Specimens of red soapstone from the Shetland Islands, Scotland, UK. Supplied in a white card tray with an information label, these peculiar samples are ideal for any collector of British material.
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Rock Specimen Cards (25 cards) £1.25 ex VAT
Rock specimen sample cards, these cards are blank having spaces for you to write the ‘name’, ‘age/horizon’ and ‘locality’ of a rock specimen or specimens collected. Ideal for conducting field work or cataloging your collection. 73mm x 46mm.

1952 in stock
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Sedimentary Rock Texture Card £1.25 ex VAT
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.
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Trachyte
Trachyte, a common igneous rock composed of various minerals including quartz, feldpsars, micas and olivine, rock specimens come from East Lothian, Scotland and are available in optional sizes, supplied in a card tray with a label.

20 in stock
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Streak Plates – Black £0.40 ex VAT
Streak plates in a black colour made form porcelain, tough and ideal for performing streak tests, to asses minerals or mineral content of a rock sample, each plate is 45 x 45 mm in size and has a fine texture surface. Excellent for field geologists and earth science students.
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Streak Plates – White £0.40 ex VAT
An off white coloured streak plate made form porcelain, they are used by field geologists and students as a means of performing streak tests on minerals. This test simply involves one, scratching the surface of the tile with a particular rock or mineral, the coloured streak left behind then assists the user in determining the mineral, or minerals within a rock sample.

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