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1605 products
This is a must have 16.8 gram Impactite, monomict impact breccia from the Agoudal, Imilchil impact structure, Morocco. Although not a meteorite, impactites are directly linked to them and their impacts and are probably going to be one of the rarest collection items you'll ever own. Impactite is a slag-like glassy object found on the surface of the earth, formed from rock melted by the impact of a meteorite.
The term impactite encompasses shock-metamorphosed target rocks, melts or suevites and mixtures of the two, as well as sedimentary rocks with significant impact-derived components and shocked mineral grains, tektites, anomalous geochemical signatures, etc. According to the state of conservation of the meteorite into the sedimentary layers "Soltanian" and the dating of ancient lake sediments of the Isli lake, we can estimate their age limit to 40,000 years.
More than 183 structures of meteoritical impacts are highlighted on the Earth, including only three reported dual impact craters. The impact craters of Isli and Tislit are respectively located at 10 km and 4 km from the Imilchil village on the Central High Atlas in Morocco at respective altitudes of 2272 and 2266 meters. They are spaced apart from each other by 9.4 km. The origin and the date of formation of these two lakes are still unknown today. Surveys undertaken near them and in the surrounding areas leads to believe that they correspond to a dual meteoritical impact crater.
Polymict and monomict breccias were observed at the edges of these craters but they don’t form big masses because of erosion. They consist of irregular fragments with millimeter and centimeter sizes, in a carbonate matrix. In the breccias collected on the southern edges of the Isli crater, we noted the presence of several shocked quartz grains in planar structures associated with rolling extinction, indicators of shock metamorphism.
This gorgeous specimen displays very well with a mass of 35x35x25 mm. Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.
This is a fantastic Impactite Fallback Breccia from Germany weighing 32.9 grams and measuring 70x48x7mm. Although not a meteorite, impactites and shatter cones are directly linked to them and their impacts. The Steinheim Basin today exhibits a distinct morphological depression that is ∼110 m deep and ∼3.5 km in diameter; the height of the central uplift totals to more than 140 m. The original size of the pristine crater is estimated to be ∼3.8 km with an original depth of ∼205 m.
As this drainless morphological depression was filled by lake sediments shortly after the impact, the primary crater morphology is widely preserved. The crater rim is formed by steeply inclined and intensely brecciated Upper Jurassic limestone blocks that also contain numerous shattered chert nodules, as well as some loose blocks of the host limestone. An impact breccia, referred to as the so-called ”Primäre Beckenbrekzie” (“primary basin breccia”) and interpreted as a “fallback breccia”, is known from many drillings in the Steinheim Basin.
Mainly composed of Middle to Upper Jurassic limestones, marls, mudstones, and sandstones, the impact breccia inside the morphological depression of the Steinheim Basin is overlain by lake sediments and is obviously preserved in its original thickness and position. This piece displays very well and is a very nice size showing multiple characteristics of its origin. Would make a beautiful addition to any collection.
Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another. The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.
The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.
This specimen is remarkable for its relatively sharp marcasite crystal form. It is in excellent condition.
Name: Goethite After Marcasite Pseudomorph
Specimen Size: Miniature-Sized Specimen
Dimensions: 27x24x21 mm / 1.1x0.9x0.8 inches
Weight: 20.8 grams / 0.7 ounces
Origin: White Desert, Farafra Oasis, Egypt
This is a must have 27.4 gram Impact Melt Rock from the Stac Fada Member Impact Structure, NW Scotland. It measures 67x37x5 mm. Although not a meteorite, impactites are directly linked to them and their impacts and are probably going to be one of the rarest collection items you'll ever own. Impactite is a slag-like glassy object found on the surface of the earth, formed from rock melted by the impact of a meteorite.
The term impactite encompasses shock-metamorphosed target rocks, melts or suevites and mixtures of the two, as well as sedimentary rocks with significant impact-derived components and shocked mineral grains, tektites, anomalous geochemical signatures, etc.
This beautiful Impact melt rock comes from the Stac Fada impact structure in Scotland. The structure has an estimated age of about 1.2Ga (1,200 Ma). The Stac Fada Member of the Precambrian Stoer Group in Scotland has previously been described as volcanic in origin. However, shocked quartz and biotite provide evidence for high-pressure shock metamorphism, while chromium isotope values and elevated abundances of platinum group metals and siderophile elements indicate addition of meteoritic material. Thus, the unit is reinterpreted as having an impact origin.
This gorgeous slice displays very well. Would be a beautiful addition to any new or existing collection. Comes with two a Canagem Collection specimen card.
This is a fantastic Impactite Fallback Breccia from Germany weighing 52 grams and measuring 69x51x10mm. Although not a meteorite, impactites and shatter cones are directly linked to them and their impacts. The Steinheim Basin today exhibits a distinct morphological depression that is ∼110 m deep and ∼3.5 km in diameter; the height of the central uplift totals to more than 140 m. The original size of the pristine crater is estimated to be ∼3.8 km with an original depth of ∼205 m.
As this drainless morphological depression was filled by lake sediments shortly after the impact, the primary crater morphology is widely preserved. The crater rim is formed by steeply inclined and intensely brecciated Upper Jurassic limestone blocks that also contain numerous shattered chert nodules, as well as some loose blocks of the host limestone. An impact breccia, referred to as the so-called ”Primäre Beckenbrekzie” (“primary basin breccia”) and interpreted as a “fallback breccia”, is known from many drillings in the Steinheim Basin.
Mainly composed of Middle to Upper Jurassic limestones, marls, mudstones, and sandstones, the impact breccia inside the morphological depression of the Steinheim Basin is overlain by lake sediments and is obviously preserved in its original thickness and position. This piece displays very well and is a very nice size showing multiple characteristics of its origin. Would make a beautiful addition to any collection.
This is a must have 4.71 gram impactite from the Boltysh Crater in Ukraine. Its dimensions are 28x27x4mm. Although not a meteorite, impactites are directly linked to them and their impacts and are probably going to be one of the rarest collection pieces you'll ever own. The Boltysh impactites are important geological specimens that are recognized by the scientific community as evidence of asteroid or comet impacts on Earth.
The Boltysh crater is a well-preserved impact crater located in central Ukraine. It was formed approximately 65 million years ago during the Late Cretaceous period, around the same time as the Chicxulub impact that is thought to have caused the mass extinction of the dinosaurs. The crater is estimated to be around 24 kilometers in diameter and is one of the best-preserved impact structures in the world.
The Boltysh crater has been extensively studied by scientists because of its importance in understanding the effects of large-scale impacts on the Earth's surface and the resulting environmental changes that occur. Studies of the rocks and sediments from the crater have provided valuable insights into the processes of impact cratering, such as the formation of impact melt rocks and the creation of shock metamorphic features.
Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.
This is a must have 16.88-gram Impactite slice from the Terny Astrobleme (Ukrainian Shield) in Cherkasy Region of Ukraine. Its dimensions are 53x32x8mm. Although not a meteorite, impactites are directly linked to them and their impacts and are probably going to be one of the rarest collection pieces you'll ever own. The Terny impactites are important geological specimens that are recognized by the scientific community as evidence of asteroid or comet impacts on Earth.
The Terny astrobleme is a geological formation located in the Cherkasy region of Ukraine. It is believed to be the result of a meteorite impact that occurred approximately 65 million years ago during the Late Cretaceous period. The impact formed a crater that is estimated to be around 6 kilometers in diameter, although it is largely eroded and filled in with sediment.
It is an important geological site for studying the effects of meteorite impacts on the Earth's surface and the resulting geological processes that occur. It has been the subject of numerous scientific studies, and specimens of the impactite rocks found at the site have been collected and analyzed for their mineralogical and chemical properties.
Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.
Pseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another. The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed of goethite.
The Farafra Oasis, in the White Desert, has been known for a number of years to deliver incredible pseudomorph specimens. The pseudomorphs occur within the Cretaceous Khoman Chalk, from which the White Desert derives its name.
This specimen is remarkable for its relatively sharp marcasite crystal form. It is in excellent condition.
Name: Goethite After Marcasite Pseudomorph
Specimen Size: Miniature-Sized Specimen
Dimensions: 40x34x35 mm / 1.6x1.3x1.4 inches
Weight: 44.4 grams / 1.6 ounces
Origin: White Desert, Farafra Oasis, Egypt
Wavellite typically forms as radiating, spherical clusters or botryoidal (grape-like) aggregates, often appearing as green, yellow, brown, or even blue clusters on a host rock. The mineral typically forms in low-grade metamorphic rocks and phosphate-rich environments, often associated with minerals like quartz, variscite, and limonite.
Wavellite is found in several locations worldwide, with Arkansas, USA being one of the most famous sources, producing well-formed green botryoidal specimens. Other notable locations include England, Bolivia, Brazil, Germany, and Australia.
It is believed wavellite is linked to clarity, insight, and emotional balance, helping to provide a broader perspective on situations. It is sometimes associated with the heart chakra, thought to encourage compassion and emotional healing.
Name: Wavellite on Matrix
Specimen Size: Miniature-Sized
Dimensions: 59x45x31 mm / 2.3x1.8x1.2 inches
Weight: 71 grams / 2.5 oz
Origin: Mauldin Mountain, Mt. Ida, Arkansas, USA
Product Type: Citrine (Madeira)
Approx Weight (per piece): 10.8ct
Size: 18x13mm
Shape: Oval Cut
Color: Golden Yellow
Clarity: Clean
Origin: Brazil

