Howell, TN Meteor
The Howell, TN Meteor is an excellent study for the inquisitive mind.
Free on facebook marketplace in Petersburg. This is a large remnant impact slab with plasma cavitation from the bottom strata of the impact and is now shock hardened.
The Howell Impact is very large and broke the lower strata causing earthquakes today as the crust is resolving these breaks.
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The Puzzle - This is what I call a "transition specimen." It still retains some of the iron squiggles that made it. This is a shock made plasma mix of limestone and iron from the Howell, TN impact. It has been blasted 50 miles to south Franklin County, TN almost to the Alabama border. The Howell Impact contained a lot of iron arriving at high speed from space making a more explosive impact.
Specimen from Lake Logan, TN SE Giles County. It is a shock tempered clast and clinks when struck and is very heavy. See the path of the grove from right to left finally piercing through. In the physics environment of a large earth impact hundreds of Giga Pascals (GPa) are present and plasma mineral balls are flying around in many directions close in to the impact center.
Construction site at Lake Logan, TN which is inside the Howell Crater. This is a shock mega clast. These are what used to be the limestone where the big meteor hit and turned them to blobs it throws out in all directions. The surface is a heat dimpling like you might have with baking a cake and the mix was not uniform enough. Also this impact occurred into a sea and the back rush of water can have quick cooling effects.
This is rare. Falsum Lichenas (false lichen) a splatterform type. It is hard like coral but only has color on the surface. NW Jackson County, AL Johnson Top. From the Howell Impact.
Sir John Templeton Library at Swanee, TN USA Easter weekend 2022.
Fossil spider shell conch, Henryville, TN.
Blue/Green Vivianite! Petersburg, TN. High shock specimen.
Christmas Impactite (crater made rock).