| Impact Breccias |
| Impact breccias
- the basement rock of large craters - are the primary evidence for a
cataclysmic impact event. The heat generated from impact melts the target rock
changing it's mineralogy. 5 localities, supplied in 2" clear specimen cases, $ 18.00 each |
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| Moutoume, France |
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| Rochechouart, France |
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| LaValette breccia, with coesite. |
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| Chassenon breccia, France |
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| Suevite, Ries Crater, Germany |
 All impact breccias are supplied in a 2" specimen case easily opened for examination. Impact breccias, $ 18.00 each. |
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Coesite It was the mineral Coesite, named after it's discover, Loring Coes, that finally convinced the scientific community that the diamonds found in the Canyon Diablo meteorite resulted from the pressure of impact. Coes had clearly demonstrated that pressures and temperatures necessary for the transformation of quartz to coesite were at least 20,000 atmospheres and 700 to 1700 degrees C. Meteoritic impact was the only natural event that could provide this. Coes' data suggested that coesite might be found in the quartz-bearing rock of meteor craters. In 1960, coesite was identified as an abundant mineral in the sheared Coconino sandstone of Meteor Crater. 0.5 inch specimens of Coesite supplied in 2" clear specimen case, $22.00. |
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Iron Spherules, Meteor Crater, Arizona, USA These 1mm iron/nickel spheroids were collected by Dr. H. Nininger in 1949 by towing a magnetic "rake" behind his car at Meteor Crater in Arizona, USA . Supplied in a #10 capsule, 10 spherules per capsule, $24.00 |
| Rock Flour, Meteor Crater, Arizona,
USA Collected at Meteor Crater in Arizona, this impact material is the original rock strata that was pulverized into a flour-like consistancy by the impact. Sold in #10 capsules, $9.00 |
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Shattercones When strong shock waves pass through certain types of rocks, they produce weakend zones which radiate outward from the direction of shock. This results in ridged, cone-shaped fragments called shattercones. |
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| Shatter cones are physical evidence of violent impacts upon
the Earth in craters and impact basins. Sudbury Basin, Ontario, Canada, approximately 1.5 to 2 inches long $18.00. Beaverhead, Montana, USA, approximately 2 - 3 inches long, $22.00 Gosses Bluff, Northern Territory, Australia, 2 inch fragments, $ 22.00 |
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