Rhodonite

The rare sugilite tumbled is found in shades of bright pink through to deep purple. First found in Japan, significant sources of sugilite tumbled have been located in South Africa, India, and Canada. It is made into beads, cabochons, and carved into figurines. It is also used as an inlay for decorative boxes.

Morganite tumbled is primarily prized for its color, which can vary from pale red-purple, across rose and salmon, to purplish red. Found in Brazil, Madagascar, and California (USA), the material can be tumbled, but it's mostly cut into beautiful faceted gems. Highly popular and valued, it makes an excellent jewelry stone.

Zebra Marble tumbled has unique black (sometimes red/brown) and white banding throughout, resembling the stripes of a tiger or zebra. Currently only found in Australia, zebra Marble tumbled was carved for statues by the native people of its locality. Now, it is popular for beads, tumbled stones, and ornamental decorations.

As its name implies, lake Superior Agate is a famous Agate found exclusively on the shores of Lake Superior (Canada and USA). This banded Agate is prized by collectors for its vivid colors in alternating shades of red, brown, white, beige, and green. It takes a fine polish. Lake Superior Agate is the state gemstone of Minnesota.

Chalk is a soft, white, porous, sedimentary carbonate rock, a form of limestone composed of the mineral calcite and originally formed deep under the sea by the compression of sub-microscopic plankton which had fallen to the sea floor. Chalk is common throughout Western Europe, where deposits underlie parts of France, and steep cliffs are often seen where they meet the sea in places such as the Dover cliffs on the Kent coast of the English Channel. Chalk is mined for use in industry, such as for quicklime, bricks and builder's putty, and in agriculture, for raising pH in soils with high acidity. It is also used for "blackboard chalk" for writing and drawing on various types of surfaces, although these can also be manufactured from other carbonate-based minerals, or gypsum.