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Specimens of blue calcite from Mexico. These samples of blue calcite vary in colour from the typical light blue to a pale almost white, they are supplied in a card tray with an information label. These specimens are perfect for mineral collectors and ideal as a teaching aid.
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Specimens of blue calcite from Mexico. Calcite is a common and widespread mineral with variable forms and colours, best recognised by its relatively low Mohs hardness (3) and its high reactivity with even weak acids: e.g. vinegar, along with its prominent cleavage in most varieties. It is possible that the blue colouration of this mineral is from copper impurities which often turns a hue of green or blue when it oxidises. These samples of blue calcite vary in colour from the typical light blue to a pale almost white, they are supplied in a card tray with an information label. These specimens are perfect for mineral collectors and ideal as a teaching aid.
Weight | 200 g |
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Specimen Size | 2" x 2", 3" x 2", 4" x 3" |
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Specimens of nail head calcite spar found in Cumbria, UK. Specimens are supplied in a white card tray with a information label.
Out of stock
Specimens of Stalactitic calcite found in Somerset, UK. Specimens are supplied in a white card tray with a information label.
Out of stock
Dogtooth calcite mineral specimens collected from Jebel Saghro, Morocco. Dogtooth calcite is found in open spaces such as limestone caves, geodes and veins, that consists of large calcite crystals thought to resemble dogs’ teeth due to the ‘pointed’ crystal habit they form in.
Dog tooth calcite crystal beds, excellent mineral specimens from Somerset which details how calcite can also grow to have a pointed tip crystal habit. The beds are an off white colour and semi transparent and available in 1 size only, roughly 2″ x 2″ and supplied in a card tray with an information label.
Out of stock
Calcite rhomb mineral specimens exhibiting excellent rhomic crystal form expected of calcite, the pieces come from Morocco and as expected, will fizz, bubble and release CO2 if the hydrochloric acid test is performed. They are available in 2 colours and will be supplied in a card tray with an information label.
Honey calcite mineral specimens from Mexico which exhibit a yellow to orange colouration due to impurities of iron from the mineral hematite. The specimens are crystalline in nature and can exhibit a rough rhombic form as expected of calcites. They are translucent, letting some but not all light through, which gives them an eye catching ‘glow’. The samples are ideal for enthusiasts, hobbyists and collectors and are available in various sizes. Each piece will come supplied in a card tray with a label.
Cobalt calcite or cobaltoan calcite collected from the Agoudal Mine in the Bou Azzer District of Morocco. Cobalt calcite is a variety of calcite which owes its beautiful pink or purple colour to small amounts of the accessory element cobalt.
7 in stock
Specimens of Pyrite from 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.
Specimens of chalcedony with quartz from Alabaster Coast, Normandy, France. These samples of chalcedony have a predominantly pale blue colouration with some inclusions of white and pale red material, some pieces also contain quartz crystal beds. These specimens are supplied in a white card tray with an information 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.
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.
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 milky quartz containing small amounts of lepidolite mica from Glen Gairn, Strathdon, Aberdeenshire, Scotland. These samples of quartz contain a pale lilac lepidolite mica which has a massive form. These pieces, ideal for British mineral collectors, are supplied in a white card tray with an information label.
Specimens of bladed baryte from Derbyhire, UK. These specimens vary in colour from pale beige to white and display a bladed habit. These samples are supplied in a white card tray and are ideal for any collector of British material.
Specimens of fluorite crystal beds from Worton Hall Mine, Bainbridge, Wensleydale, Yorkshire, UK. These pieces of fluorite vary in colour from purple to clear or faint yellow, with some specimens containing marcasite inclusions. These samples are a must have for any British mineral collector, though the good quality of these specimens makes them ideal for any collection. Specimens are supplied in a white card tray with an information label.
Out of stock
Bytownite basalt is another variation of the common Basalt rock. These particular samples come from Cumbria and are available in a range of sizes.
198 in stock
A display specimen of an uncut polyhedral agate from Paraiba, Brazil. The piece measures approximately 12.5 x 8 x 2.8 cm at its widest points and weighs roughly 277 grams.
1 in stock
Specimens of small almandine garnets found in India. These specimens are supplied in a small white card tray with an information label. The specimens are approximately 1″ – 1.5″ cm in diameter though this will vary slightly.
6 in stock
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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