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Specimens of iridescent goethite with quartz from Graves Mountain, Georgia, U.S.A. These peculiar pieces are a must have for any mineral collector. Various sizes are available, samples are supplied in a white card tray with an information label.
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Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
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Phone: +1 (23) 456 789
Specimens of iridescent goethite with quartz from Graves Mountain, Georgia, U.S.A. Goethite is an iron hydroxide mineral that is commonly formed by the weathering of other iron-bearing minerals. These particular samples of goethite have a botryoidal habit and display iridescence, an optical effect caused by the interference of light against the minerals structure. These specimens also feature black/brown quartz with some crystals also appearing iridescent, the black colouration and iridescence of these crystals is actually caused by a thin layer of goethite coating the quartz. These peculiar pieces are a must have for any mineral collector. Various sizes are available, samples are supplied in a white card tray with an information label.
Weight | 100 g |
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Specimen Size | 1.5" Mag Box, 1.5" x 1.5", 1" Mag Box, 2" x 2", 3" x 2", 3" x 3" |
Specimens of pink baryte from Dirtlow Rake, Castleton, Derbyshire, UK. These attractive specimens would make an ideal addition to any mineral collection, samples are supplied in a white card tray with an information label.
Specimens of white tabular baryte crystal beds from Cumbria, UK. Ideal for collectors of British mineral specimens. Samples are supplied a white car tray with an information label.
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
Specimens of calcite crystal beds of varying colours from Milldam Mine, Derbyshire, UK. These ideal specimens for collectors of British minerals are supplied in a white card tray with an information label.
Specimens of Pyrite from the Chispa Mine, Huanzala, Peru. These particular samples are a higher grade than our Moroccan material and display visible crystal structure, ideal for both mineral collectors and educational use. Specimens are supplied in a white card tray with an information label.
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.
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
Specimens of pink agate from India. These particular specimens of agate have an attractive pale pink colouration with small amounts of brown agate present. Some specimens may also contain cavities filled with pale pink to white quartz crystals. Pieces are supplied in a white card tray with an information label.
Angelite is a popular trade name for a variety of Anhydrite that is light blue-grey in colour, semi-transparent, fine grained and marketed as gem material. These specimens, along with most angelite, are from Lima, Peru and were collected near the Casapalca Mine at Casapalca, Huarochiri Province, Lima Department, Peru.
elenite pencils are exquisite and captivating mineral formations that showcase the natural beauty of selenite, a form of gypsum. They exhibit a pristine translucence that allows light to pass through, creating a mesmerising glow when held to the light. Each selenite pencil measures approximately 14cm in height and 4cm in width whilst being smooth and well weighted. This makes them easy to hold whilst remaining promenant enough to stand out as a decorative piece. They all feature a flat, hexagonal base, making them easy to stand on a range of surfaces. Since these items are made from 100% natural selenite, it is common to expect some slight variance between each specimen, whether that be in shape, size or the occasional scratch. Despite this, these selenite pencils would make a great addition to any room, adding some flair and elegance.
10 in stock
Chalcopyrite mineral specimens from France, they display a very pure chalcopyrite in a quartz matrix and may also show small amounts of peacock ore. The mineral its self is a major source of copper ore and mined around the world for a wide variety of uses, The samples are supplied in a white card tray with an information label, these pieces would make an excellent addition to any mineral collection though they could also serve as a educational specimen.
25 in stock
Specimens of fluorite crystal beds from Fallgate Quarry, Ashover, Derbyshire, UK. Samples are available in multiple sizes and come supplied with an information label. Ideal samples for collectors of British fluorite specimens.