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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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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.
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
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.
The mineral, Honey (or citrin) calcite is a variation of calcite which appears to exhibit a translucent orange colouration and crystalline habit. Calcite its self is a fairly soft mineral, coming in at 3 on the Mohs scale of hardness and can be scratched by ones finger nail. As with other minerals in this group, it reacts with hydrochloric acid, which when exposed to, will cause a fizzing reaction in which carbon dioxide (CO2) is produced. This can be viewed by using vinegar but on a weaker scale. This is an excellent method for students and geologists to determine if a mineral is calcite or not. As stated, these particular samples are an orange/yellow coloured variation, this colour is caused by impurities within the calcite of the iron mineral, hematite. Which when pure is often a rich red or burgundy colour. These particular samples from Mexico and are available in various sizes, each piece will come supplied in a card tray with an information label.
Mineral specimen sample cards, these cards are blank having spaces for you to write the ‘name’, and ‘locality’ of a rock specimen or specimens collected. Ideal for conducting field work or cataloging your collection. 73mm x 46mm.
3253 in stock
Pyrite on Rhaetic Bone Bed collected from Westbury-on-Severn, Gloucestershire. Of our specimens it is the pyrite crystal bed which is the key feature, some specimens may exhibit bones or scales but naturally this is no guarantee
9 in stock
Specimens of Garnets in Biotite, collected from Agder, Norway. The garnets in these pieces are almandine garnets, which are the most popular and common variety. These specimens exhibit deep red garnet crystals within a matrix of black biotite mica. They are available in multiple sizes and come in a white card tray with an information label.
Specimens of Baryte, collected from Dirtlow Rake, Castleton, Derbyshire, UK. Baryte is a widely occurring mineral, consisting of barium sulphate. It is very dense and can occur with many crystal habits. These specimens are available in multiple sizes and come in a white card tray with an information label.
Specimens of Baryte, collected from Derbyshire. Baryte is a dense, common, well known mineral. These specimens exhibit bladed crystals and range in colour from pale beige to off white. Specimens are available in multiple sizes and come in a white card tray with an information label.
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
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.
Orange calcite is a coloured variation of the mineral calcite (calcium carbonate), it has an orange hue to it due to the presence of haematite impurities, these particular specimens exhibit a more crystalline, fine grained crystal texture in which the individual crystals are too fine to be seen, however, the crystal have grown and interlocked with each other to form a large mass, known as ‘massive’. Calcite its self is among the most common mineral found naturally, quite often as mineral deposits but also in many sedimentary rocks, either as a cement or as crystal inclusions, particularly limestone. It is well known for being a fairly soft mineral, easily scratched, coming in at 3 on the Mohs scale of hardness. These particular pieces are suitable for enthusiasts and educational use, both because of the calming blue colour and also the crystal structure and as a means to display the various colours a mineral can be found. Supplied in lots of 1kg, in a heavy duty polythene bag with information label.
1 in stock
Beautiful Quartz tea Light Holders, each made from 100% natural quartz crystals and equipped with a cushioned base. Each item showcases unique variations in colour, texture, and formations, making them one-of-a-kind. The soothing tones of quartz, create a captivating visual display that resonates with the serenity of nature. Each tea light holder spans a spectrum of colours from clear to cloudy white, and we have equipped them all with a cushioned base. This protects your furniture from scratches or damage. Since these items are made from 100% natural quartz, please note that some scratches and staining may be visible. Enhance your home with our Quartz Tea Light Holders, bringing a touch of the earth’s beauty into your everyday life.
Angelite is a popular trade name for a variety of Anhydrite that is light blue-grey in colour, semi-transparent, fine grained and marketed as gem material. These specimens, along with most angelite, are from Lima, Peru and were collected near the Casapalca Mine at Casapalca, Huarochiri Province, Lima Department, Peru.
Specimens of Chalcopyrite, collected from France. Chalcopyrite is a major copper ore. It has a brassy yellow colour and metallic lustre. Over time, this lustre will fade however as oxidation occurs. These specimens are available in multiple sizes and comes in a white card tray with an information label.
25 in stock
elenite pencils are exquisite and captivating mineral formations that showcase the natural beauty of selenite, a form of gypsum. They exhibit a pristine translucence that allows light to pass through, creating a mesmerising glow when held to the light. Each selenite pencil measures approximately 14cm in height and 4cm in width whilst being smooth and well weighted. This makes them easy to hold whilst remaining promenant enough to stand out as a decorative piece. They all feature a flat, hexagonal base, making them easy to stand on a range of surfaces. Since these items are made from 100% natural selenite, it is common to expect some slight variance between each specimen, whether that be in shape, size or the occasional scratch. Despite this, these selenite pencils would make a great addition to any room, adding some flair and elegance.
9 in stock
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