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PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
£1.50 – £2.50 ex VAT
Bornite mineral specimens from Congo, Africa exhibiting excellent text book iridescent blue colouration and a metallic lustre as well as the expected density. Bornite is a copper ore mineral which is often used in the educaitonal sector in geology and science lessons. When acid treated, it is known as peacock ore owing to its vibrant purple colours. Specimens are available in various sizes and come in a card tray with a label.
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Email: contact@mydomain.com
Phone: +1 (23) 456 789
Bornite (sometimes known as peacock ore) is a sulfide mineral that crystallizes within the orthorhombic system. The minerals most striking feature is its vibrant iridescent blue, purple or cerise colouration which is what appears to attract many eyes initially. Its next surprising (to many) feature is its density, for its size, bornite is very heavy, and those (especially who are just being introduced to geology or mineralogy or who are just viewing it in a show room) often remark at its surprising weight when initially picking it up. Bornite also has a metallic lustre, mainly due to the amount of copper present as it is also a primary copper ore mineral. The combination of Iron & Copper make this a dense mineral, specific gravity 5.06 – 5.08 and is often important in educational establishments. However, it also has a niche in the gemstone gift market, partly due to its bright colour but also when treated with acid, the mineral can change to an even more vibrant blue colour, a bright purple or a brassy yellow a metallic green as well as a mixture of all 4. When subject to this process, the mineral is often sold on as ‘peacock ore’. These mineral samples come from the Congo and are available in various sizes, each supplied in a labelled card tray.
Weight | 600 g |
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Specimen Size | 1.5" x 1.5", 2" x 2", 3" x 2", 4" x 3" |
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Peacock ore mineral specimens from Mexico, a striking altered variation of chalcopyrite, it exhibits a rich blue colouration with occurrences of purple, and yellow. Very dense as expected, we supply this mineral specimen in 2″ x 2″ sizes, each sample comes supplied in card tray with a data label.
Out of stock
Native copper ore mineral specimens from the famous Keweenaw copper deposits of Mitchigan, U.S.A. The specimens have a heavy red-orange metallic specimens with streaks of blue-green oxidation and a wiry crystal habit. Available in a range of sizes.
Chalcopyrite mineral specimens from Sulitjelma, Norway, a major copper ore mineral, these pieces exhibit excellent quality chalcopyrite detailing the shiny brassy yellow colouration and metallic lustre expected. These mineral specimens are approximately 70% – 80% chalcopyrite and are available in various sizes and come supplied in card tray with an information label.
Bornite with Feldspar and quartz, a strange and colourful mixture of minerals and crystals making a unique specimen, these pieces were collected by staff from Tysfjord, Northern Norway, due to the content, they have a vibrant metallic colouration and are available in 3 sizes, supplied in a card tray with a label.
Chalcopyrite mineral samples from Morocco, exhibiting typical yellow brassy colour with a metallic lustre. Lower grade when compared to our Norwegian stock but also includes occurrences of bornite which is a blue colour. Samples are available in 3 sizes, each supplied in a labelled card tray.
174 in stock
Actinolite crystals within talc mineral specimens collected from the Mo i Rana, in the Helgeland region of Nordland, Norway, an excellent and striking mix of off white and deep green these samples are excellent for serious collectors, available in various sizes and supplied in a card tray with an information label.
2 in stock
Orthocalse feldspar mineral specimens from Evje, Norway. It exhibits a pale pink, white or pale grey colouration with excellent cleavage planes with rhombic crystal forms, a common mineral found in granites and rhyolites, orthoclase belongs to the feldspar family of minerals and can be found all over the world. Specimens are available in various sizes and come supplied in a card tray with an information label.
Magnesite mineral specimens from Greece, the samples are an off white colour and exhibit a somewhat botryoidal texture, formed around ultramafic rocks and metamorphic zones, these specimens are limited and will come supplied in a card tray with a data label.
Rhodolite garnets in quartz and mica schist matrix from Southern Norway exhibiting bright vibrant pink coloured garnets in a white quartz and metallic grey mica schist with a start contrast of colours, these minerals specimens are available in 3 sizes and come supplied in a card tray with a label.
Galena with massive baryte from Morocco, showing the two contrasting colours of the off white baryte and metallic blue galena mineral specimens together, both are quite dense yet extremely fragile, these samples were collected from Morocco and available in 3 sizes.
Specimens of white coloured Plagioclase Feldspar also known as a Albite-Anorthite Series mineral. The specimens come from Osedalen, Southern Norway and are supplied in a 2″x2″ 3″x2″ 4″x3″ card tray with an information label.
Cut ulexite mineral specimens from California, USA. A mineral similar to gypsum, ulexite is able to transmit light through its long axis, meaning if placed above an image or text, will transmit it to the samples surface as an image. Hence the name TV rock, excellent for children, these pieces are available in several sizes and will come supplied in a card tray with an information label.
Baryte mineral specimens, unusual samples collected from Foss mine in Scotland, they have a fine crystalline texture instead and are quite robust specimens. Pieces are off white in colour and may show a shimmer effect in certain lighting conditions. Available in various sizes, supplied in a card tray with an information label.
29 in stock
Sulphur mineral specimens (also spelt sulfur) from Bolivia, these fine crystalline masses give off a pungent odour as expected of this mineral and have a pale yellow colouration to them. They formed in volcanic zones and are excellent for the more serious collector. Available in one size only and supplied in a card tray with a data label.
13 in stock
Cleavelandite is a variety of the mineral albite, one of the constituent minerals of plagioclase feldspar, thus is found in areas where pegmatites and granites exists in certain localities around the world. These particular specimens come from Evje, in Southern Norway and as expected, has a pale green colouration to it. As with albite, cleavelandite also exhibits a triclinic crystal habit and has a hardness of 6- 7 on the Moh’s scale of hardness, it is usually found within cavities of other rocks or minerals. It as named in 1823 by Henry J. Brooke in honor of Parker Cleaveland , professor of geology and mineralogy at Bowdoin College in Maine. Our mineral specimens are massive in form with occasional accessory such as smokey quartz or plagioclase or orthoclase feldspar. The specimens were collected by our own staff from Evje and are available in a range of sizes. Each specimen is supplied in a labelled card tray.
Sodalite mineral specimens with a rich royal blue colouration, named due to its sodium content, it is part of a family of minerals which include hauyne, nosean, and lazurite and is a well known ornamental gemstone. Very eye catching and beautiful for colectors of those wanting something striking to show, samples are available in two sizes and come supplied in a card tray with a data label.
Out of stock
Moss Agate mineral specimens from India, deep green in colour due to the presence of chrome and iron mineral impurities, this chalcedony mineral breaks with a conchoidal fracture, has a glassy texture and can have sharp edges, caution is advised. Available in various sizes, this well known mineral has been used in the past as a gemstone as it takes a high polish, natural specimens, they will come supplied in a card tray with an information label.
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