Shatter Cones catalog

Sierra Madera Shatter Cone - 190g. 190 grams. Approximate size: 2.0" x 3.0" x 1.0". Location: Sierra Madera Crater, Pecos County, Texas. Well-defined striae on both sides and edges. Side one features radiating coarse-to-fine striae on a concave surface with blunted apex features; side two has moderate striae with at least two small apex features. This is a shatter cone specimen in Permian limestone from the Sierra Madera Crater in Pecos County, Texas. Shatter cones are rare impact-related structures with distinctive cone-shaped fractures and grooved, radiating striae that form under extreme shock pressure from hypervelocity meteorite impacts. The discovery of shatter cones, impact breccia, and shocked quartz in the 1960s helped confirm Sierra Madera as an impact structure. The crater formed about 100 million years ago and is an 8-10 mile-wide complex impact structure with a central uplift containing folded and faulted carbonate and siliciclastic rocks.

Sierra Madera Shatter Cone - 457g. 457 grams. Approximate size: 6.0" x 3.2" x 1.0". Location: Sierra Madera Crater, Pecos County, Texas. Well-defined striae on both sides. Side one features fine radiating horsetail patterns and the outline of a Permian brachiopod fossil; side two features coarser striae. This is a shatter cone specimen in Permian limestone from the Sierra Madera Crater in Pecos County, Texas. Shatter cones are rare impact-related structures with distinctive cone-shaped fractures and grooved, radiating striae that form under extreme shock pressure from hypervelocity meteorite impacts. The discovery of shatter cones, impact breccia, and shocked quartz in the 1960s helped confirm Sierra Madera as an impact structure. The crater formed about 100 million years ago and is an 8-10 mile-wide complex impact structure with a central uplift containing folded and faulted carbonate and siliciclastic rocks.

Sierra Madera Shatter Cone - 170g. 170 grams. Approximate size: 2.8" x 1.5" x 1.0". Location: Sierra Madera Crater, Pecos County, Texas. Prominent, well-developed striae and very fine feathery features. This is a shatter cone specimen in Permian limestone from the Sierra Madera Crater in Pecos County, Texas. Shatter cones are rare impact-related structures with distinctive cone-shaped fractures and grooved, radiating striae that form under extreme shock pressure from hypervelocity meteorite impacts. The discovery of shatter cones, impact breccia, and shocked quartz in the 1960s helped confirm Sierra Madera as an impact structure. The crater formed about 100 million years ago and is an 8-10 mile-wide complex impact structure with a central uplift containing folded and faulted carbonate and siliciclastic rocks.

Sierra Madera Shatter Cone - 143g. 143 grams. Approximate size: 2.2" x 1.4" x 0.7". Location: Sierra Madera Crater, Pecos County, Texas. Prominent fine to grooved shatter cone features on one side, with more muted features on the opposite side. This is a shatter cone specimen in Permian limestone from the Sierra Madera Crater in Pecos County, Texas. Shatter cones are rare impact-related structures with distinctive cone-shaped fractures and grooved, radiating striae that form under extreme shock pressure from hypervelocity meteorite impacts. The discovery of shatter cones, impact breccia, and shocked quartz in the 1960s helped confirm Sierra Madera as an impact structure. The crater formed about 100 million years ago and is an 8-10 mile-wide complex impact structure with a central uplift containing folded and faulted carbonate and siliciclastic rocks.

Sierra Madera Shatter Cone - 113g. 113 grams. Approximate size: 2.0" x 1.5" x 1.0". Location: Sierra Madera Crater, Pecos County, Texas. Well-defined shatter cones on all sides including the ends, with coarse to fine branching striae and some blunted apex features. This is a shatter cone specimen in Permian limestone from the Sierra Madera Crater in Pecos County, Texas. Shatter cones are rare impact-related structures with distinctive cone-shaped fractures and grooved, radiating striae that form under extreme shock pressure from hypervelocity meteorite impacts. The discovery of shatter cones, impact breccia, and shocked quartz in the 1960s helped confirm Sierra Madera as an impact structure. The crater formed about 100 million years ago and is an 8-10 mile-wide complex impact structure with a central uplift containing folded and faulted carbonate and siliciclastic rocks.

Sierra Madera Shatter Cone - 41g. 41 grams. Approximate size: 2.5" x 1.5" x 0.3". Location: Sierra Madera Crater, Pecos County, Texas. Well-defined grooved striae and feathered patterns on one side, with fine feathered striae and some apex features on the opposite side. This is a shatter cone specimen in Permian limestone from the Sierra Madera Crater in Pecos County, Texas. Shatter cones are rare impact-related structures with distinctive cone-shaped fractures and grooved, radiating striae that form under extreme shock pressure from hypervelocity meteorite impacts. The discovery of shatter cones, impact breccia, and shocked quartz in the 1960s helped confirm Sierra Madera as an impact structure. The crater formed about 100 million years ago and is an 8-10 mile-wide complex impact structure with a central uplift containing folded and faulted carbonate and siliciclastic rocks.