Ammonite and Agate Necklace Gadget Features hundreds of color and

Features hundreds of color and black-and-white drawings and figures

Build a cute apple robot that walks along a tightrope

Whether you're studying

the flagpole in front of your school — all of these are examples of simple machines in the real world

Includes a wooden stand for elegant display on desks

Ammonite and Agate Necklace Gadget Features hundreds of color andThis Ammonite and Agate Necklace pairs a fossil from ancient oceans with a beautifully banded mineral formed deep within the Earth. The design features a fossilized ammonite alongside polished agate, both set in sterling silver. Ammonites were marine mollusks that lived during the Mesozoic era, and their spiral shells were preserved through fossilization over millions of years. Agate, a microcrystalline quartz, forms when silica rich fluids slowly