Lava Turquoise Ring Ring size:7-- Circle Featuring imagery inspired by historic

Featuring imagery inspired by historic national park posters

and hydroelectric power station to explore how moving water can generate electricity and perform mechanical work

and puzzle lovers alike

featuring a rotating star map dome for both the northern and southern hemispheres plus a second projector for space imagery

Double-walled glass helps maintain beverage temperature while keeping the exterior comfortable to hold

Lava Turquoise Ring Ring size:7-- Circle Featuring imagery inspired by historicThis ring features a combination of natural lava stone and turquoise set in sterling silver. The contrasting textures highlight the porous, volcanic origin of lava stone and the vibrant blue green hues of turquoise, a copper aluminum phosphate mineral. Details: Material: Natural lava stone and turquoise set in sterling silver (92. 5% silver, 7. 5% copper) Appearance: Matte black lava stone paired with polished blue green turquoise Formation: Lava