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Chrysocolla, hydrated copper silicate mineral specimens are a minor ore of copper. Turquoise blue specimens collected from Dunfreis in Scotland; various sizes available, each supplied in a labelled card tray.
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Chrysocolla is a hydrated copper silicate mineral often appearing vibrant blue in colour . It is an ore of copper, albeit a minor one. The name comes from the ancient Greek word chrysos, which means gold, and kolla, meaning glue, as it was used to solder gold, and was first used by Theophrastus in 315 BC. Chrysocolla rarely if ever appears in a visible crystal form. It is almost always in botryoidal, reniform, or stalactitic masses and crusts & as vein infillings. The specimens of Chrysocolla we supply come from Walnockhead, a town where copper, nickel and zinc have been mined near Dunfries in Scotland. These specimens are supplied in a white card tray box with an information label
Weight | 235 g |
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Specimen Size | 1.5" x 1.5", 2" x 2" |
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Malachite and azurite mineral specimens from Morocco, the two minerals are often found together and exhibit completely different colours, the azurite is a rich royal blue where as the malachite is a pale green. Both are copper ore minerals and have been used as paint pigments in ancient times. Supplied in various sizes and in a card tray with a data label.
Out of stock
Specimens of malachite and chrysocolla found in Congo, Africa. Specimens are supplied in a white card tray with an information label.
Dolomite with malchite crystal beds, found in Bou Azzer, Ouarzazate Province, Morocco with occasional deposits of selenite which although transparent will glimmer under certain light angles, excellent mineral specimens with a variety of contrasting colours, available in various sizes.
Out of stock
Specimens of malachite from the Congo, Africa. These samples are a vibrant green colour and usually show some amount of banding and are a must have for any mineral collection. Specimens are supplied in a white card tray with an information label.
Out of stock
250 grams of chrysocolla, a popular and well known cyan blue coloured mineral with a botryoidal crystal habit, these pieces which range between 5 to 10 cm are shells. a minor copper ore mineral, the pieces are excellent for educational use, buying in bulk. Supplied in a sealed pack ready for immediate use, a small information label will also be present.
Out of stock
Pyrtic crystal cubes from Spain, depicting excellently the cubic crystal form that pyrite forms in. These samples exhibit the brassy colouration and metallic lustre expected from pyrite and are available in two sizes, 1 cm and 2 cm cubes, supplied in a polythene bags with a data label.
Out of stock
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
Bytownite basalt is another variation of the common Basalt rock. These particular samples come from Cumbria and are available in a range of sizes.
196 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.
Out of stock
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.
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
Fulgerite mineral specimens from Algeria, formed from lightening strikes which pieces the desert sands instantly melting and fusing the quartz crystals creating a light weight hollow piece of rock.
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.
Blue lace agate mineral specimens of moderate size which clearly exhibit alternating bands of blue and white, the specimens come from Botswana and are excellent grade with minimal matrix on them. Formed through volcanic processes and the deposition of silica compounds in igneous rocks, these minerals are both important educationally and calming to look at.
Out of stock
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.
199 in stock
Desert rose mineral specimens composed from gypsum found in Tunisia, the samples are composed of numerous crystals which resemble ‘petals’ which are randomly orientated, thus giving them a rose flower effect. Specimens are supplied in a 1.5″ x 1.5″ card tray or as approximately 1 cm diameter pieces in 1″ magnifier boxes with an information label.
Orthocalse feldspar mineral specimens from Strathpeffer, Ross-Shire, Scotland. It exhibits a very pale pink almost white colouration and details 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.
Out of stock
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