On 28 Apr, 2020 By rosenfel@chass....
  1. RASC I4.20091130;
  2. Shattercone (Malmian Limestone), Steinheim Impact Structure, Baden-Württemberg (48°41N, 10°4E), 15±1Ma;
  3. Anonymous gift 2009 November 30;
  4. 3.47 x 2.55 x 0.91 cm;
  5. 7.2 gr;
  6. Irregular fan-shaped;
  7. Faces with long surface exposure have a light tan patina and occasional surface speckling caused by an overlay of dark material (lichen?). Relatively recently exposed faces are chalk-white in appearance. All surfaces have a typical mild abrasive feel;
  8. Good state of preservation;
  9. Not previously published;
    1. PASSCEID: www.unb.ca/passc/ImpactDatabase/images/steinheim.htm ;
    2. ECIS: www.impact-structures.com/germany/steinheim.htm ;
    3. Skàla, R., & Jakeš, P. (1999). Shock-Induced Effects in Natural Calcite-Rich Targets as Revealed by X-Ray Powder Diffraction. In B. Dressler & V. Sharpton (Eds.), Large Meteorite Impacts and Planetary Evolution II. Geological Society of America Special Paper 339 (pp. 205-214). Boulder Co.: Geological Society of America
Inventory #: 
I4.20091130
Sort #: 
I0004
General Type: 
Impactite
Parent Body: 
Other
Type: 
Shattercone
Origin: 
Germany
Weight: 
7.200 grams