Sierra Madera Shatter Cone

SM143

SHATTER CONE

Excellent sample of native Texas rock shocked by meteoric impact about 100 million years ago. This arrow shaped shatter cone shows lines in a radiating cone shape on both sides.

110 x 65 x 30 mm

143 g complete

PPG: $0.98

$140.00

Out of stock

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Sierra Madera

Location:
  • USA
    • Texas
Found: 1960
Group:
  • Impactite
Type:
  • Shattercone

Age:<100 million years from present
An 14 km crater from the Cretaceous/Tertiary impact event which was first recognized from the shattercone in 1960, by Dr. Robert S. Deitz.