- “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
£2.25 – £6.00 ex VAT
Dunite igneous rock specimens from the Gusdal olivine pit in Åheim, southern Norway. Composed of green olivine minerals with chromite and pyroxene crystals, the rock forms as intrusive igneous plutons in the earth mantle down to 400 km deep and displays a coarse texture and green colouration. Overall, the samples are fairly granular and weak due to their chemistry and form part of the basal gneiss complex of southern Norway. Ideal for various levels of collectors and for higher level education and research use, the samples are available in three sizes and come supplied in a card tray with an information label.
We also supply Dunite thin sections for microscope study which are available to buy HERE.
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
Dunite is a coarse grained intrusive igneous rock with an ultra-mafic chemistry which is rich in the mineral olivine, around 90% or more. This give the rock an overall vibrant green colouration with minor occurrences of other expected mafic mineral such as pyroxenes, chromite and magnetite which can often be seen as minute black specks within the rock. Being a plutonic in origin, the rock formed very deep underneath the earths crust, down to 400 Km deep and is a major constituent of the mantle. These particular specimens were collected by staff from the Gusdal Olivine Pit (also known as Åheim Olivine Pit) from Åheim, Norway and overall exhibit the expected coarse grained texture and colouration. They form part of the Almklovdalen peridotite massif, an ultramafic body included in the basal gneisses of Southern Norway, a complex of gneissis rocks which underlie a large area of the North West are of southern Norway which are believed to be Caledonian in origin. These samples exhibit a weak structure, even crumbling in ones hand if too much pressure is applied. This is due to the ultra-mafic chemistry of the rock, the minerals which tend to form deep within the earth are often the most unstable when exposed on the surface, as such. If left to the outside elements, these samples will weather very quickly and it is advise they are kept somewhere dry and protected. The rock is named so after its type locality of Dun Mountain near Nelson in New Zealand and was named by the German geologist Ferdinand von Hochstetter in 1859. These samples are excellent for various collectors of different levels due to its eye catching colour and intriguing chemistry and background. It is also suitable for secondary and higher level education to assist in describing deep forming plutonic bodies and their mineralogy. The specimens are available in various sizes and will come supplied in a card tray with an information label.
We also supply Dunite thin sections for microscope study which are available to buy HERE.
Weight | N/A |
---|---|
Specimen Size | 2" x 2", 3" x 2", 4" x 3" |
|
|
0% |
|
|
0% |
|
|
0% |
|
|
0% |
|
|
0% |
Dunite Peridotite thin section microscope slide. In XPL view these thin sections exhibit the bright and beautiful second order interference colours of olivine. The high relief, lack of cleavage and distinctive fracturing is clearly evident in PPL view making for a very attractive thin section.
9 in stock
Rhyolite specimens found in Cumbria. Rhyolite is a felsic (silica rich) rock, often formed in highly explosive volcanoes. Specimens are supplied in a card tray with label.
We also supply Rhyolite thin sections for microscope study which are available to buy HERE.
57 in stock
Gabbro igneous rock specimens from Balmedie quarry, Aberdeen, Scotland which exhibit a coars grained texture from the crystals. Formed as a mafic pluton intrusion, the samples contain pyroxenes such as augite along side plagioclase feldspar, amphibole and olivine crystals. They are derived from a body known as the Belhelvie basic intrusion which the parent unit being the Caledonian Supersuite. Samples exhibit a grey colouration and density and are suitable for the more serious or professional collector or higher educational use to differentiate similar looking igneous rocks with different compositions and origins. Available in three sizes, the specimens come supplied in a card tray with an information label.
We also supply Gabbro thin sections for microscope study which are available to buy HERE.
27 in stock
Mahogany obsidian sourced from the United States of America. Impurities of magnesium and iron give this variety a red or brown appearance hence the name ‘mahogany obsidian’ or oak obsidian. Each Sample is supplied in a labelled card tray.
Out of stock
Accretionary lapilli tuff is an igneous pyroclastic rock, these samples come from Longsleddle, Cumbria in the UK and forms when hot ash and debris is ejected from as volcano. Some of this material is held together by moisture and once heavy enough, falls into the ash below forming small ‘spots’ within the material, creating a speckled rock. The samples are suitable both for young and serious collectors as well as educational use and are supplied in various sizes with a card tray and label.
65 in stock
Olivine dolerite igneous rock specimens from Clee Hill, Shropshire, UK, composed of pyroxene minerals such as augite and magnetite as well as plagioclase feldspar. The samples are fine grained and crystalline in texture with a dense weight and black colouration. Similar in appearance to gabbro and basalt, the rock samples are suitable for serious collectors or higher level education to explain the difference in chemistry and mineralogy of igneous rocks. The samples are available in three sizes and supplied in a card tray with an information label.
We also supply Olivine Dolerite thin sections for microscope study which are available to buy HERE.
62 in stock
Pumice specimens from the Lipari islands, Italy. Pumice is an igneous rock with a highly porous structure resulting from trapped gas bubbles as the lava was being ejected. The rock is usually very light & buoyant in water. Specimens are supplied in a card tray with label.
We also supply Pumice thin sections for microscope study which are available to buy HERE.
49 in stock
Metagabbro specimens from Lom, Central Norway. Also known as scapolite-hornblende due to the absence of feldspar in the rock are available in 3 optional sizes and come supplied in a card tray with a data label.
40 in stock
Agglomerate igneous rock specimens from Scotland, UK. A coarse grained, hard blocky rock exhibiting a conglomeration of various minerals and igneous material of volcanic origin. These samples formed part of the Glen Coe caldera and are apart of the upper streaky andesite unit, the exhibit poor sorting and orientation of material which indicates a somewhat violent origin but this can vary from agglomerates by location and is mainly down to the chemistry of the igneous material. The samples are available in 3 sizes and come supplied in a card tray with a label, they are suitable for educational use to show the different types of volcanic rocks produced as well as those interested in collecting rock samples.
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.
Introducing an outstanding triplet hand lens with a remarkable x 10 magnification and a wide 21 mm viewing field. This loupe enables detailed examination of specific areas within a sample. Crafted using three precision-ground glass elements (triplet optics), it delivers exceptionally clear vision. Additionally, this model features both LED and UV lighting options, making it an ideal tool for geologists and entomologists. In particular, for ex the fluorescent properties of minerals, crystals, and insects.
The lighting system consists of a ring of six bright white LEDs that enhance the visibility of your chosen sample. The single UV LED emits longwave fluorescence, causing many materials to emit a glowing effect in the dark.
Encased in durable plastic housing that seamlessly integrates with a stainless steel body, this loupe is powered by three LR297 button batteries (included). It comes with a key for easy battery replacement, and a leather case for added convenience. This versatile lens is an indispensable tool across various professions including geology, sedimentology, mineralogy, entomology, botany, jewelry making, gem cutting, and more
Specimens of Basalt, collected from Northern Ireland. Basalt is a common, extrusive igneous rock, that forms when magma erupts and cools quickly on the Earth’s surface. These specimens are part of the Antrim lava group and date to the Tertiary period, around 60 million years ago. This is the same as the Basalt that makes up the famous Giant’s Causeway. The chemistry of these specimens suggests that the rock is olivine basalt, and comprises plagioclase feldspar, olivine and augite. These specimens are available in multiple sizes and come in a white card tray with an information label.
We also supply Basalt thin sections for microscope study which are available to buy HERE.
10 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
Reviews
There are no reviews yet.