ART STONE semi precious gemstones

SEMI PRECIOUS GEMSTONES : Semi Precious Gemstones have been placed into the categories of "precious stones" and "semi precious stones" since the mid-1800s. The term "precious stone" was reserved for four types of gems: diamond, ruby, sapphire and emerald. All other gemstones were placed in the "semi precious stone" category.

TYPES OF SEMI PRECIOUS STONES
Agate, Amber, Amethyst, Malachite, Tiger Eye, Rose Quartz, Aquamarine, Aventurine, Chalcedony, Chrysocolla, Chrysoprase, Citrine, Garnet, Hematite, Jade, Jasper, Jet, Kunzite, Lapis Lazuli, Malachite, Moonstone, Obsidian, Onyx, Peridot, Rhodonite, Sunstone, Tiger Eye, Tanzanite, Topaz, Turquoise, Tourmaline