Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture. It can be predominantly white, pink, or gray in color, depending on its mineralogy.
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly dolomite or calcite.
An extremely compact, hard, granular rock consisting essentially of quartz.
Porcelain is a ceramic material made by heating materials, generally including kaolin, in a kiln to temperatures between 1,200 and 1,400 °C.
A composite made-up of 93% quartz, 7% polyester resin and pigment.
Travertine is a form of limestone deposited by mineral springs, especially hot springs.
Limestone is a carbonate sedimentary rock often composed of the skeletal fragments fo marine organisms such as coral, foraminifera, and molluscs. Its major materials are calcite and aragonite.
Soapstone is metaphoric rock that consists primarily of talc with varying amounts of ohter minerals such as micas, chlorite, amphiboles, pyroxenes, and carbonates. It is soft, dense, heat-resistant rock that has a high specific heat capacity.
Onyx primarily refers to the parallel banded variety of the silicate mineral chalcedony. Agate and onyx are both varieties of layered chalcedony that differ only in the form of the bands: agate has curved bands and onyx has parallel bands. The colors of its bands range from white to almost every color.
SA gemstone is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rocks and occasionally organic materials that are not minerals are also used for jewelry and are therefore often considered to be gemstones as well.