1.6" Natural Polished Red Silk Banded Agate Chalcedony Mineral Specimen Chrome diopside A 13-foot-long (4-meter-long) Xiphactinus could

A 13-foot-long (4-meter-long) Xiphactinus could open its jaw wide enough to swallow six-foot-long (two-meter-long) fish whole

and Tunisia link it firmly to this era

They had tentacle-like arms for seizing prey and sharp

Black Tourmaline is both strong and versatile

playing a crucial role in shaping ancient marine ecosystems

1.6" Natural Polished Red Silk Banded Agate Chalcedony Mineral Specimen Chrome diopside A 13-foot-long (4-meter-long) Xiphactinus couldLocation: Madagascar Weight: 1. 5 Ounces Dimensions: 1. 6 Inches Long, 1. 6 Inches Wide, 0. 6 Inches Thick The item pictured is the one you will receive. Agate, a captivating variety of banded Chalcedony from the Quartz family, owes its name to the Achates River in Sicily, its source. With striking layers and stripes, this mineral can showcase unique "eye" patterns, colorful specks, fossilized inclusions, or even solid hues. Often called the Earths