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Specimens of Ironstone that have been collected from Breitung Mine, Marquette County, Negaunee, Michigan, USA. These specimens are a deep reddish brown in colour with some specimens exhibiting clear banding. Please note that banding is not visible on all pieces. These specimens are available in very limited supply with three sizes to choose from. They come supplied in a white card tray with information label.
Additionally we also have one large display piece available, measuring approximately 18cm x 15cm at its widest points. This display specimen exhibits a distinct botryoidal texture on its top surface, making it an intriguing and appealing specimen to add to any collection.
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
Samples of Ironstone gathered from Breitung Mine located in Marquette County, Negaunee, Michigan, USA, showcase a rich hue of deep reddish-brown, occasionally presenting clear bands. It’s important to note though that not all pieces exhibit this banding feature. Comprising three iron-rich minerals—Hematite, Goethite, and Magnetite—this ironstone was frequently accompanied by quartz waste during its extraction. Dating back to 1844, the Breitung Mine holds historical significance, though it is no longer active. It was never a sizeable endeavour even during its operational phase however, featuring only a single recognised shaft. These rocks originate from the Paleoproterozoic era, dating back approximately 2.5 to 1.6 billion years. These specimens are only available in very limited quantities and are offered in three size variations, arriving in a white card tray accompanied by an informative label.
Alternatively, we offer a single large display piece measuring approximately 18cm x 15cm at its widest points. This showcased specimen features a distinctive botryoidal texture on its upper surface, adding an intriguing element to any collection.
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Rhodonite specimens from Peru display a signature pink color, and are of manganese silicate composition. They also contain significant amounts of magnesium, iron, and calcium (Mn,Fe,Mg,Ca)SiO3.
Rhodonite, an uncommon mineral, typically thrives in metamorphic rocks and other manganese-rich regions. It claims its presence in nine main localities: Argentina, Australia, Brazil, Canada, England, India, Russia, Sweden, and Peru, along with a few states in the USA.
These specimens boast a massive crystal structure, granting them a granular appearance, while the rarer ones boast red, triclinic crystals.
You can obtain these specimens in various sizes, neatly packaged in a white card tray complete with an informative label.
Puddingstone conglomerate is a rare sedimentary rock from Hertfordshire, UK which formed during the Paleocene to Eocene period. Composed of rounded flint clasts within a silica matrix, this rock is quite hard and breaks with conchoidal fractures. Formed through erosion of flint pebbles which were later cemented by sand and silica, it is an excellent representation of conglomerate, detailing rounded clasts within a matrix. The specimens are available in 4 sizes and come supplied in a card tray with a label.
298 in stock
Massive specular hematite from Brazil, black colouration and metallic lustre which gives the crystals a sparkling appearance. These particular specimens are of specularite crystals in a massive form, therefore the samples have a highly crystalline texture. They come from Brazil and give off a metallic shimmer when held under certain lighting. Available in various sizes and supplied in card tray with an information label.
Specimens of Pyrite from the Chispa Mine, Huanzala, Peru. These particular samples are a higher grade than our Moroccan material and display visible crystal structure, ideal for both mineral collectors and educational use. Specimens are supplied in a white card tray with an information label.
Specimens of Orbicular Rhyolite, also sometimes referred to as Leopardskin Jasper, obtained from Peru. The distinctive spots are formed by staining from iron and manganese hydroxides. These specimens are unique in design and polish up very well. They are available in a range of sizes and come supplied in a white card tray with information label.
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.
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.
3294 in stock
Specimens of agate within basalt from Barras, Kincardineshire, Scotland. These samples of agate have a red to white colouration and have filled the cavities of basalt. Specimens are supplied in a white card tray with an information label.
2 in stock
Specimens of white tabular baryte crystal beds from Cumbria, UK. Ideal for collectors of British mineral specimens. Samples are supplied a white car tray with an information label.
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.
10 in stock
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
A field guide containing various pages which are based on the munsell colour system to aid in the identification of rocks whilst working in the field.
2 in stock
Specimens of chalcedony with quartz from Alabaster Coast, Normandy, France. These samples of chalcedony have a predominantly pale blue colouration with some inclusions of white and pale red material, some pieces also contain quartz crystal beds. These specimens are supplied in a white card tray with an information label.
Specimens of galena in matrix from Leadhills, South Lanarkshire, Scotland,UK. These samples display galena crystals of varying sizes and lustres within a matrix. Pieces are supplied in a white card tray with an information label, multiple sizes are available.
A display specimen of an uncut polyhedral agate from Paraiba, Brazil. The piece measures approximately 12.5 x 8 x 2.8 cm at its widest points and weighs roughly 277 grams.
1 in stock
Massive Biotite Mica specimens, collected from Arendal, Norway. These specimens depict a “massive” crystal structure, as opposed to the more commonly seen sheets. Like all biotite mica, these specimens are dark in colour, exhibiting a dark grey to black hue. Mica is one of the most common mineral groups, with biotite being the most abundant member. Biotite is very common in igneous and metamorphic rocks, with the dark minerals in granites, pegmatites and gneiss often being due in some part to the presence of this black mica. This massive biotite are available in limited supply so we recommend you move fast if you wish to add a piece to your collection. Supplied in a white card tray with information label.
Specimens of pink baryte from Dirtlow Rake, Castleton, Derbyshire, UK. These attractive specimens would make an ideal addition to any mineral collection, samples are supplied in a white card tray with an information label.
Specimens of Chrome Diopside that were collected from the Gusdal Olivine Pit, Åheim, Norway. These samples are best described as chrome bearing diopside. Diopside, a vivid green pyroxene mineral, features streaks of grey chromite that creates a stunning mineral sample that would be the perfect addition to any collection. Whilst many samples of chrome diopside tend to be crystalline in nature, our samples are unique as the feature a grainier, more crumbly texture. These specimens are in limited availability, so we recommend you move fast if you wish to add these stunning specimens to your collection. They are available in a range of sizes and come supplied in a white card tray with information label.
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