Impactites

The Puerto Minguez ejecta refers to the impact ejecta from the 38 million years old twin (multiple) impact structure Azuara / Rubielos de la Cerida in Northern Spain, originating from the nearby Rubielos de la Cerida impact structure.

This is a strongly deformed limestone component (seldom different rock types) with significant displacements. Typical clast deformation looks looking like a loaf cut into slices but not fully broken into pieces.  This is typical of a short-time dynamic deformation under high confining pressure.

The similar deformations are well known from the Ries crater impact ejecta that occurred in carbonate concretions and in the famous Ries Belemnites both embedded within soft Jurassic claystone. This sample shows a limestone clast partially sliced / fractured with prominent displacements in the range of up to 12 mm. The over all dimensions of this sample is 40x60 x125 mm and weighs 365 grams.

Would be a beautiful addition to any new or existing collection. Comes with a Canagem Collection specimen card.

This is a large 196.3 gram uniquely shaped Rizalite Tektite, with a beautiful pitted body, from Rizal Province, Philippines. Although not a meteorite, tektite is directly linked to them or their impacts, just consider its age of around 710,000 years old.

Rizalites are a variety of Philippinite tektites belonging to the Indochinite strewnfield. Like other splash-form tektites from around the world, they appear in a wide range of shapes. What sets them apart is their striking surface texture—often finer, more delicate, and accompanied by a brighter sheen. Many specimens display a smoother overall appearance, yet this elegance is frequently contrasted by dramatic deep grooves and winding channels etched into their surfaces.

Tektite is very interesting because of the persistent mystery that resisted clear explanations of their creation for generations of geologists. This piece displays very well and is a very nice size showing multiple characteristics of its origin.

This special piece comes with 2 specimen cards including the signed original Mark Bostick Collection. Would make a beautiful addition to any collection.