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Quartz crystals from Madagascar, these mineral specimens are small in size, between 3 to 5 cm, as they are A grade, they are completely transparent, crystal clear show the excellent termination of the points and crytsal system. Ideally suited for university level educational use if large numbers are required for students to observe or for serious collectors.
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Quartz crystal points, small in size which are A grade quality, the crystals show excellent termination of a quartz crystal as expected and are crystal clear as they are of high quality. These specimens are ideally suited for higher educational use where multiple specimens may be required for a class to observe or for collectors who are after excellent specimens to add to their collection. They are small approximately 3 to 5 cm in length. Quartz is one of the most common minerals found on the surface of earth, a silica mineral and is found as a common constituent in many rocks. It has many other variations depending on chemistry of colour such as amethyst, citrine, jasper, agate and more. These particular crystals come from Madagascar and come supplied in a polythene bag with an information label. Available by weight in 100g or 1kg bags.
Weight | 200 g |
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Weight: | 100g, 1kg |
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Quartz crystals from Madagascar, these mineral specimens are large in sizes, between 10 to 15 cm, as they are B grade, they are not completely transparent, but cloudy and they still show the termination of the points and crytsal system. Ideally suited for educational use if large numbers are required for students to observe.
Rock crystal mineral specimens from Madagascar, part of the quartz family of minerals, rock crystal is the clear or transparent variation of quartz, the most common mineral at the earths surface. These samples may show a conchoidal fracture and are suitable for collectors, enthusiast or educational use. Supplied in a card tray with an information label.
Stunning red quartz Hematoide over a calcite matrix collected from Jebel Saghro in Morocco. This unique variety of quartz owes its red colour to very fine hematite inclusions which have become incorporated into the quartz mass.
Out of stock
Quartz crystals from Madagascar, these mineral specimens are large in size, ranging between 5 to 10 cm. We characterize them as B grade, as they are not completely transparent, but cloudy and slightly iron stained whilst still showing the termination of the points and crystal system. Ideally suited for educational or lapidary use if large numbers of crystals are required.
Salt Pseudomorphs on a limy marl matrix collected from the Triassic Aust Cliff in Avon. Numerous cubic imprints can be identified on the limy marl substrate of these specimens; they serve as interesting educational pieces.
20 in stock
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.
Out of stock
Chalcedony mineral specimens from Morocco, the pieces belong to the quartz family of minerals and is very similar to carnelian, even having a waxy lustre, although it tends to have a botryoidal crystal habit. The pieces are blue, white, red and orange and available in various sizes, supplied in a card tray with an information label.
Baryte in cockscomb mass form exhibiting bladed crystals on a massive bed, these mineral specimens vary slightly in colour from orange and yellow to pink, they show excellent crystal detail, mined in Mibladen, Morocco, they are available in various sizes.
Cleavelandite mineral specimens available in various sizes, a variation of albite, it is pale green or an off white colour, these pieces come from Evje in Southern Norway and exhibit a massive form of cleavelandite. Specimens may also come with accessory minerals such as smokey quartz or other feldspars.
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
These particular samples are a milky white to pale yellow colour and show typical fibrous crystal habit expected from Witherite. Samples are supplied in a white card with an information label.
Baryte mineral specimens collected form Cumbria, exhibiting a bladed crystal habit or massive form, the dense specimens are an off white, yellow or brown colour due to staining from hematite (iron ore), available in various sizes, ideal for educational use.
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.
Specimens of brecciated hematite found in Cumbria, UK. Specimens are supplied in a white card tray and come with an information label.
Out of stock
Milky quartz mineral specimens from Iveland, Norway, collected by staff, these samples have a fine crystalline texture and are in a massive form. Translucent, they have a pale grey, milky white colour and are sometimes known as snow quartz or simply quartz. Available in 3 sizes and supplied in a card tray with a label.
100 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
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