Stone-Gems Therapy

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Treated gem

Suggestions for Cleaning the Frequent Gem Varieties   How To Care Your Jewelry   How To Take care of Pearl

Agate    Amazonite   Amber   Ruby Zoisite   Apatite   Aquamarine   Aventurine   Obsidian   Onyx   Opal   Jasper   Tiger Eye   Topaz   Snowflake Obsidian   Cactus Quartz   Cape Amethyst   Carnelian   Charoite   Chryosprase   Chrysocolla   Citrine   Quartz   Coral   Diamond   Diopside   Dumortierite   Tourmaline   Emerald   Fluorite   Garnet   Hessonite   herapeutic Quartz   Howlite   Rhodocrosite   Iolite   Zircon   Jade   Jet  Kunzite   Kyanite  Labradorite   Sugilite   Sunstone   Tanzanite   Tree Agate   Turquoise   Unikite   Zebra Jasper   Zoisite   Healing Smoky Quartz   Lapis Lazuli   Lepidolite   Sillimanite   Sodalite   Lodestone   Malachite   Snow Quartz   Moonstone   Serpentine   Pearl   Pearl   Rose Quartz    Ruby   Rutile Quartz   Sapphire   Sardonyx

Additionally called Treated Stone. Genuine gem material whose color has been artificially enhanced or produced to extend the value of the stone; staining, warmth therapy, and irradiation are among the many treatments used.

Comparatively porous material could also be stained or dyed to vary its colour. Agate could also be stained a wide range of colours by soaking it in different solutions and, in some instances, by subsequent heat therapy: reds are produced by warmth or ferrous nitrate and heat; lemon yellow, by hydrochloric acid and heat; greens, by chromium or nickel salts; blue, by ferric Ferro cyanide followed with ferrous sulfate or by Prussian blue; and brown, by sugar followed with sulfuric acid. Jasper, stained blue, has been used to simulate lapis lazuli, and turquoise, opal, and alabaster are sometimes coloured to reinforce their beauty.

Warmth therapy of gems to improve or change colour has been practiced for centuries. When heated, smoky quartz resembles citrine or topaz, some brownish or reddish zircon turns into vivid blue or colourless, yellow topaz turns into pink, barely colored chalcedony becomes carnelian pink, and a few rubies or amethysts are extra evenly coloured. The color change usually is dependent upon the temperature to which the stone is heated, the atmospheric situations within the neighborhood, and the period of heating or cooling.

Irradiation of sure gemstones additionally causes colour changes. Some colourless diamonds become green, rose quartz turns into brown, and decolourized amethyst regains its purple hue. These color modifications will not be at all times permanent, and the stone might become radioactive.