Stonehenge Bluestone Quarry Slab ornithischian Luis Alvarez and his son

Luis Alvarez and his son Dr

Above: A selection of NWA 869 specimens

It is the only observed meteorite fall which struck a living creature and there is very little of the material available to public hands

Triassic Matrix (c

Stonehenge Bluestone Quarry Slab ornithischian Luis Alvarez and his sonThis specimen is a custom cut mini slab of bluestone recovered downstream from the quarry at Craig Rhos y Felin located on the northern flank of the Preseli Mountains near Pembrokeshire, Wales. Recent petrographic studies have closely linked chippings from these dolerite bluestones to the bluestones installed at Stonehenge roughly 4,500 years ago. Each mini slab is unique and varies in size and shape. As pictured, the slab is housed in a small acrylic