Q gemstones
Quartz with gold
Natural gemstone.
R gemstones
Rhyolite with blue quartz & pink feldspar
Natural gemstone.
Ruby in fuchsite
Natural gemstone.
Ruby in kyanite
Natural gemstone.
Ruby in zoisite
Natural gemstone.
Rutilated quartz with hematite
Natural gemstone.
S gemstones
Schalenblende
Natural gemstone.
Scapolite
Natural gemstone.
Septarian
Natural gemstone.
Seraphinite
Natural gemstone.
Sillimanite
Natural gemstone.
Spessartine garnet
Natural gemstone.
Sphene
Natural gemstone.
Spodumene
Natural gemstone.
Surfite
is a manmade gemstone cut from layers of hardened resin which have built up in the process of making surfboards
T gemstones
Thulite
Natural gemstone.
Tiffany stone
Natural gemstone.
Tiger iron
Natural gemstone.
Trapiche emerald
Natural gemstone.
Tsavorite garnet
Natural gemstone.
U, V & W gemstones
Variscite
Natural gemstone.
Welsh Blue
Manmade - a by-product of the iron smelting process in Wales.