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Bornite mineral specimen from Sonora, Mexico; mounted on a polystyrene base. The minerals stand proudly, mounted (attached with glue) on a polystyrene base within a 1.5″ x 1.5″ card tray, information label attached. Ideal for geologists, collectors or simply those interested in mineralogy looking for an attractive display piece.
Out of stock
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Bornite mineral specimen from Sonora, Mexico; mounted on a polystyrene base. Bornite is an important copper ore known for its iridescent blue colouration made more spectacular by its metallic lustre. Although popular among those interested in geology and mineralogy, bornite also has a niche in the gemstone gift market. This is partly due to its bright colour but also when treated with acid ( but can also occur naturally ) the mineral can develop an even more vibrant blue colour. The treated mineral is often sold as ‘peacock ore’ and we sell this also. The minerals stand proudly, mounted (attached with glue) on a polystyrene base within a 1.5″ x 1.5″ card tray, information label attached. These specimens would be suited for geologists, collectors or simply those interested in mineralogy looking for an attractive display piece.
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These specimens of Mariposite originate in Mariposa County, California USA. An ore of gold, this mineral is a chromium-rich variant of muscovite mica, giving it a distinct turquoise colour. Ideal for serious mineral collectors, they are mounted on a polystyrene base and put into a card tray with the details typed on. Suitable to collectors and enthusiasts, especially of those interested in American samples.
Out of stock
Topaz crystals from the famous Topaz mountain, Utah, USA. these mineral specimens exhibit both yellow crystal along with bixbite, which is grey. They are small in size, only around 1 cm in length and so come supplied in a magnifier box with a data label for easier viewing. A well known semi precious gemstone due to its facetting and variety of colour, many will have seen topaz in jewellery at some point in their lives.
Linarite mineral specimens approximately 20 to 30 mm in size with eye catching blue colours, the samples come from Socorro County, New Mexico, USA and are excellent pieces for serious collectors, especially of American minerals. The pieces come mounted on a base polystyrene base and are supplied in a card tray with details printed on.
Out of stock
Fluorite crystal from Socorro County, New Mexico, USA. Specimens exhibit a vitreous lustre with cubic crystal habit and a pale green colour. Fluorite’s use as an index mineral in Moh’s hardness scale make these samples are ideal for both collectors and novices alike.
1 in stock
Stunning amethyst mineral specimens mounted on a polystyrene base. This amethyst was collected from Mexico, specimens exhibit the characteristic pointed tip crystal habit associated with many quartz family minerals.
Out of stock
Sulphur mineral specimens (also spelt sulfur) from Baja, Mexico, 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. Supplied in a card tray with a data label.
Sulphur mineral specimens (also spelt sulfur) from Nevada, USA, 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 a number of sizes and supplied in a card tray with a data label
4 in stock
Native copper from Keweenaw, Michigan, USA, a well known locality for these mineral specimens, the samples are small, 20 mm in size and wiry with no discernible crystal habit. The pieces have tarnished and so are now a black colour with dull lustre, mounted on a polystyrene base within a labelled card tray.
Out of stock
Chrysocolla mineral specimens from the Oro Grande in New Mexico, USA, nice samples which exhibit blue to turquoise colouration of the mineral as layers on the matrix, between 20 to 30 mm in size. Ideal for serious collectors, the pieces have been mounted and inserted into a specimen try with the details typed on to it.
Out of stock
Native copper specimens which have been smelted and slightly polished making them smooth to touch and enhancing their metallic lustre, these copper specimens were obtained from the smelting process of copper from the famous Keweenaw native copper ore deposits of Michigan. U.S.A.
Out of stock
Specimens of purple to clear fluorite from Mexico. These samples are supplied in a white card tray with an information label and would be an excellent addition to any mineral collection.
Out of stock
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.
Out of stock
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