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PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
PRODUCTS BY WEIGHT
BOX SETS
PLASTIC DISPLAY PRODUCTS
£2.00 – £30.00 ex VAT
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 Dating back to 1844, the Breitung Mine holds historical significance, though it is no longer active.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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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 Puddingstone, collected from Hertfordshire, UK. Puddingstone is a variation of conglomerate, which is term used to describe a coarse grained sedimentary rock, featuring large, well rounded clasts in a finer grained matrix. It dates back to the Paleocene to Eocene period around 56 millions years ago. This particular rock is composed almost entirely of silica and has no porosity, likely contributing to its notorious hardness. This rare rock is only found in quantity at one locality in Hertfordshire. As such, it is becoming exceedingly difficult to obtain. This rock is available in multiple sizes and each piece comes supplied in a white card tray with 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.
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 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.
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.
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.
Out of stock
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
Amygdaloidal basalt is an igneous rock which is extrusive in nature, these specimens formed over 60 million years ago during the Tertiary period and come from Ireland. They are part of the Antrim lava group and exhibit a dark colouration with occurrences of amygdales containing quartz and calcite crystals. As a basalt they are somewhat dense, but lighter than pure samples due to the cavities within them which formed as a result of gaseous activity during their ejection. Over time, hydrothermal fluids pass through the rock and minerals form within the cavities, which gives the usually dark coloured rock a speckled appearance. These samples are available in various sizes and are suitable for higher educational use to detail the subtle differences between similar igneous rocks, they come supplied in a card tray with an information label.
59 in stock
Biotite muscovite granite specimens from St. Austell in Cornwall, UK of Permian age is a coarse grained igneous rock composed of quartz, plagioclase feldspar, biotite and muscovite. The rock is part of the St. Austell pluton which formed 280 million years ago. An off white colour with gold and black flecks of micas, the rock has a unique chemistry and resulted in the rich mineralisation of ores in the area. The samples are suitable for collectors and educational use to show granite variants, available in three sizes. Each piece will come supplied in a card tray with an information label.
We also supply Biotite Muscovite Granite thin sections for microscope study which are available to buy HERE.
75 in stock
The igneous rock texture card is made for earth science students, it displays numerous bites of information on how to determine an igneous specimen found in the field such as grain size, silica and mineral content and other observable features. The cards have been laminated, making them waterproof, small, the size of a bank card and an excellent to hand guide for students, amateurs and professionals.
129 in stock
Specimens of Blue Calcite, collected from Mexico. Calcite is a common mineral with a variety of potential forms and colours, notable for its relatively low hardness of 3 on Mohs Scale. These specimens exhibit a pale blue – grey colour. They are available in multiple sizes and come in a white card tray with an information label.
25 in stock
Specimens of Chalcedony, collected from Alabaster Coast, Normandy, France. Chalcedony is a silicate mineral and part of the quartz family. These specimens range from pale blue/purple to deep orange/brown in colour. They are available in multiple sizes and come in a white card tray with an information label.
Specimens of Epidote from Michigan, USA. In particular, they have been collected from the Laurium Mine, Osceola, Houghton County. Epidote is an abundant rock forming mineral that is most commonly green in colour. These specimens date from the Stenian period, approximetely 1 – 1.2 billion years ago. These specimens are available in limited supply, with two different size options. They come supplied in a white card tray with information label.
Specimens of fluorite crystal beds from Worton Hall Mine, Bainbridge, Wensleydale, Yorkshire, UK. These pieces of fluorite vary in colour from purple to clear or faint yellow, with some specimens containing marcasite inclusions. These samples are a must have for any British mineral collector, though the good quality of these specimens makes them ideal for any collection. Specimens are supplied in a white card tray with an information label.
Out of stock
Sphalerite mineral specimens from Leadhills, South Lanarkshire, Scotland, UK. Samples are of the massive form of the zinc sulphide mineral and depicts a dull yet metallic lustre and colouration. The samples are dense and excellent for British mineral collectors.The pieces are supplied in a white card tray with an information label.
Out of stock
Augite andesite igneous rock specimens from Thirlmere, Cumbria, UK which are of late Ordovician age which form part of the Barrowdale volcanic group. The samples are of intermediate composition and contain phenocrysts of the pyroxene mineral, augite, giving the normally dark blue rock a black speckled appearance. The samples are available in 3 sizes and come supplied in a card tray with a label.
We also supply Augite Andesite thin sections for microscope study which are available to buy HERE.
82 in stock
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
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