This is a large 5 lb shatter cone from the Sudbury meteorite impact structure, Sudbury Igneous Complex, a geological formation in Ontario, Canada. It is one of the largest and most well-preserved impact structures on Earth, with a diameter of approximately 250 kilometers.

The formation of the Sudbury impact structure is believed to have occurred about 1.85 billion years ago during the Paleoproterozoic era. The impact was caused by an asteroid or comet with a diameter of about 10-15 kilometers, traveling over 20 kilometers per second. This collision resulted in a crater estimated to be about 100 kilometers in diameter but has since been eroded and modified by geological processes.

Among the unique features of the Sudbury Impact Structure is the presence of shatter cones - pointed, striated rock formations that are often found at the sites of meteorite impacts. These unusual structures are created by the extreme pressures and temperatures experienced during the impact event. Sudbury's shatter cones vary considerably in size, with some reaching several meters in length, making them some of the most prominent examples of this phenomenon known to science.

The Sudbury Impact Structure also boasts complex mineral deposits, including significant concentrations of nickel, copper, platinum, palladium, and other precious metals, which have been exploited for mining. The rich presence of these minerals is attributed to the intense heat and pressure generated by the impact, which caused the molten rock to segregate into layers of different compositions. The Sudbury Impact Structure is a unique testament to the immense power of cosmic events and their enduring influence on our planet's geology.

Size of Shatter Cone: 220mm L X 155mm W X 65mm D, Weight: 2,269.2 grams or 5 lb.

This dynamic Sudbury shatter cone ships with a Certificate of Authenticity, tag, tag stand and information about the specimen. The display stand and photo cube are not included.

This shatter cone would make a great addition to any serious geological collection!

This shatter cone is guaranteed authentic and ships with a Certificate of Authenticity, tag, tag stand and information about the Sudbury Impact Structure.