Minerals of the Americas Archives

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Amethyst Mounted on Base £1.50 ex VAT
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.
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Blue Calcite £2.07 – £5.54 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
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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Bornite Mounted on Base £1.50 ex VAT
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.
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Chalcocite £0.95 – £11.50 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"4" x 3"Large Mag Box Small Mag Box
Chalcocite is a soft (2.5 – 3 on Moh’s scale) copper sulphide mineral from mexico. The specimens are in a massive form, meaning the crystals are too small to see any crystal habit. However, the specimens still exhibit a metallic lustre. Available in various sizes.
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Chrysocolla Mounted on Base
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.
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Copper Nugget £2.50 ex VAT
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.
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Fluorite – New Mexico £1.80 ex VAT
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.
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Fluorite – Mexico £1.73 – £5.18 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
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.
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Fluorite Octahedron – Illinois
Fluorite octahedron crystals from southern Illinois, USA. These mineral specimens are around 7 – 15 mm in size and available in three colours, clear, blue or purple and all are translucent, allowing some light through, giving them a gem quality colour and appearance. These octahedron crystals, while genuine fluorite have been cleaved into these shapes, a practice which has been practiced from some 200 years and still continues to this day with fluorite crystals from China. Due to the small size, these samples will come supplied in a x4 magnifier box.
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La Choya Quartz Geode £1.15 – £2.30 ex VAT
Specimen Size
1.5" x 1.5" Quartz Geode Fragment 2" x 2" Agate Geode Fragment 2" x 2" Agate Geode Pair 2" x 2" Quartz Geode Fragment
Specimens of quartz geodes from Chihuahua, Mexico. These geodes are often referred to as La Choya geodes or coconut geodes, the quartz crystals within them may be clear or smoky and are often accompanied by brown calcite and agate. These samples are supplied in a white card tray with an information label, they are provided as a geode pair or as smaller geode fragments.
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Linarite Mounted on Base £1.50 ex VAT
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.
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Mariposite Mounted on Base £10.00 ex VAT
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.
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Native Copper Mounted On Base £1.50 ex VAT
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.
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Orange Calcite £2.45 – £5.11 ex VAT
Specimen Size
2" x 2"3" x 2"4" x 3"
Orange calcite mineral specimens from Mexico, exhibiting a rich orange colour and crystalline texture, this soft mineral hovers at 3 on the Mohs scale of hardness. The colouration is due to the inclusion of hematite, an iron mineral (well known for being deep red) which in certain quantities, will give calcite the orange appearance. It is ideal for enthusiasts and collectors due to its striking colour but also for educational use to exhibit how calcite crystals can vary as well as colour and to enforce to students how mineral impurities can lead to said colouration. We have various sizes of this mineral available, each piece will come supplies in a card tray with an information label.
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Pyrite Mounted on Base £1.50 ex VAT
Pyrite mineral specimens collected from Colorado, USA. 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 and collectors.
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Sulphur – Baja £2.07 ex VAT
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.
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Sulphur – Nevada £2.07 – £4.60 ex VAT
Specimen Size
1.5" x 1.5"2" x 2"3" x 2"
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
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Sulphur Mounted on Based £1.50 ex VAT
Sulphur mineral specimens from the famous Baja locality in California, USA. Pearly lustre crystal beds on a massive matrix, these mineral specimens vary between 20 to 30 mm in size and have a vibrant yellow colouration. 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.
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Topaz Crystals £2.07 ex VAT
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.
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Ulexite – Cut
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.

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