Jasper Worrystone (Multiple Options)
Jasper, an aggregate of microgranular quartz and/or chalcedony and other mineral phases, is an opaque, impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. The common red color is due to iron(III) inclusions. Jasper breaks with a smooth surface and is used for ornamentation or as a gemstone.
These jasper worrystones are all completely different and yet all the same material.
Approximate dimensions: 4 cm x 4cm x 1cm