- “Bringing The Past, Into the Future”
- +44 (0) 1204 388754
PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
£2.45 – £5.11 ex VAT
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.
We ship to all 50 states, Washington DC.
All orders are shipped with a UPS tracking number.
Always free shipping for orders over US $200.
During sale periods and promotions the delivery time may be longer than normal.
Elessi will accept exchanges and returns of unworn and unwashed garments within 30 days of the date of purchase (14 days during the sales period), on presentation of the original till receipt at any store where the corresponding collection is available within the country of purchase.
Your return will usually be processed within a week to a week and a half. We’ll send you a Return Notification email to notify you once the return has been completed.
Please allow 1-3 business days for refunds to be received to the original form of payment once the return has been processed.
Give us a shout if you have any other questions and/or concerns.
Email: contact@mydomain.com
Phone: +1 (23) 456 789
Orange calcite is a popular coloured variant of the common mineral, calcite. A common carbonate mineral, regarded as a polymorph of calcium carbonate (with aragonite being another), these specimens exhibit a rich orange colouration and instead have a microcrystalline structure as opposed to the large calcite rhombs often seen that we also stock. This means that the individual calcite crystals are too small to be seen with the naked eye, they tightly interlock with each other to form a larger mass. As expected from minerals of this family, it is very soft, coming in at number 3 on the Mohs scale of hardness and can be distinguished by performing an acid test (hydrochloric acid in laboratory conditions) to observe the calcite crystals reactions which causes it to bubble and fizz. Calcite occurs natural and is quite common in sedimentary rocks as either a cement or as crystals, particularly limestone, of which it is the main constituent. The colouration of orange calcite is due to the inclusion of microscopic crystals of hematite (iron oxide), an iron mineral well known for it’s deep red colour, the amount of which will effect the vibrancy of the overall colour. It is the light reflecting off of these minute crystals which makes us see the mineral as orange in colour (or shades of). It has long been used as a decorative gemstone, albeit not as much as other minerals, but due to its soft nature, it can be carved into many shapes and sizes in a fairly short space of time. These particular pieces come from Mexico and are available in various sizes, they are ideal for collectors, young and old alike, enthusiast and educational use to depict the various crystal habits and colours which a mineral (calcite in this case) can take. Each sample will come supplied in a card tray with an information label.
Weight | 180 g |
---|---|
Specimen Size | 2" x 2", 3" x 2", 4" x 3" |
|
|
0% |
|
|
0% |
|
|
0% |
|
|
0% |
|
|
0% |
Dogtooth calcite and selenite crystals in limestone matrix, these mineral specimens appear to have formed in pockets in limestone, likely by action by water creating hollows, leaving transparent, glass like crystals behind. Collected from Jebel Saghro, Morocco, the samples are available in various sizes and come supplied in a card tray with a label.
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.
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. Naturally the intensity of the red varies in these specimens dependent on the purity of the quartz; some samples exhibit a paler red while others exhibit a deep red colour. Available in two sizes, each specimen is supplied in a card tray with an information label.
Cleavelandite is a variety of the mineral albite, one of the constituent minerals of plagioclase feldspar, thus is found in areas where pegmatites and granites exists in certain localities around the world. These particular specimens come from Evje, in Southern Norway and as expected, has a pale green colouration to it. As with albite, cleavelandite also exhibits a triclinic crystal habit and has a hardness of 6- 7 on the Moh’s scale of hardness, it is usually found within cavities of other rocks or minerals. It as named in 1823 by Henry J. Brooke in honor of Parker Cleaveland , professor of geology and mineralogy at Bowdoin College in Maine. Our mineral specimens are massive in form with occasional accessory such as smokey quartz or plagioclase or orthoclase feldspar. The specimens were collected by our own staff from Evje and are available in a range of sizes. Each specimen is supplied in a labelled card tray.
gypsum satin spar with an orange colouration, found in Morocco, these mineral specimens exhibit excellent fibrous texture and a silky lustre, along with the unusual orange colour, makes these particular samples very sought after simply just for their unique appearance. Available in 2″ x 2″ size pieces only and supplied in a card tray with a label.
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.
Galena with massive baryte from Morocco, showing the two contrasting colours of the off white baryte and metallic blue galena mineral specimens together, both are quite dense yet extremely fragile, these samples were collected from Morocco and available in 3 sizes.
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
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.
184 in stock
Orthocalse feldspar mineral specimens from Evje, Norway. It exhibits a pale pink, white or pale grey colouration with 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.
Iceland spar is a clear variation of calcite, it exhibits the rhombic crystal system of calcite perfectly, the crystals easily divide into rhombs, making them well sought after for a variety of reasons. Originally reported from Helgustadir Mine, Eskifjord, Iceland, hence its name. One of the most remarkable aspect of Iceland spar is its refractive properties. When light passes through one of the crystals, it is divided into two rays at different angles which results in a double refraction effect. Essentially, anything seen though the crystal is seen in double. This can best be seen if you place the calcite over some text, it will appear as if it has been printed twice. These mineral samples come from Santa Eulalia, Chihuahua, Mexico and are available in 2 sizes: Upto 1″ and Over 1″. They come in a card tray with an information label.
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.
Specimens of white coloured Plagioclase Feldspar also known as a Albite-Anorthite Series mineral. The specimens come from Osedalen, Southern Norway and are supplied in a 2″x2″ 3″x2″ 4″x3″ card tray with an information label.
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.
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
Reviews
There are no reviews yet.