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 Turquoise & Gray Pearl Ladies Antique Pendant 14k Gold US $1,800.00 
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 Vintage Signed ART Faux Turquoise & Silver Tone Pendant Necklace US $15.00
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 Stunning gold Art Nouveau Turquoise & Pearl pendant on chain,1854 US $165.14
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 Gorgeous Sterling Silver Cross Pendant with Turquoise Bezel Set Stones US $12.90
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 VICTORIAN STYLE STERLING SILVER CROSS PENDANT WITH GREEN TURQUOISE STONES US $7.20
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 Vintage Antique 925 Sterling Silver & Turquoise Lg Round Pendant Brooch Mexico US $30.00
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 Victorian Style Pendant Necklace with Faux Turquoise and Seed Pearls US $2.99
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 Vintage 14k Gold Turquoise Enamel Pendant Brooch Pin Estate Fine Jewelry US $995.00
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 Vintage Barse & Co 2.5ctw Turquoise Sterling Silver Flower Pendant Necklace 3.8g US $30.00
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 Tribal Handcrafted Vintage Turquoise Sterling Silver Tear Drop Pendant US $54.99
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 Estate Turquoise and Coral Back and Front Pendant 14k US $489.00
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 Large Signed 925 Silver& Turquoise Pin/Pendant US $99.99
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 Vintage Avon Brooch/Pendant with Enamel Flowers set with Turquoise Pastes c1950 US $12.64
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 VICTORIAN OLD 9K SOLID GOLD PENCIL PENDANT RETRACIBLE DIPPING PENCIL W TURQUOISE US $250.00
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 KAZAKH TRADITIONAL. TURQUOISE STONE. PENDANT US $23.00
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 Filigree Pendant, Costume Turquoise, Pearl & Coral Sets US $15.20
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 Vintage retro antique art deco gold plated turquoise detailing pendant necklace US $18.95
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 AFGHAN ALPACA BLUE TURQUOISE STONE DROP SHAPED PENDANT US $9.00
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 Vintage Sterling Silver Grn Blue Turquoise Pendant Oval US $65.00
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 Sterling Silver Turquoise Pendant Triangle ChunK Big US $65.00
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 Stunning VINTAGE SILVER OWL PENDANT WITH TURQUOISE STONE US $.99
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 1D065N Vintage Artistic Prized Treasure Turquoise Owl Pendant Necklace New Gold US $4.99
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 Sterling Silver Turquoise Stone Pendant Necklace (C71) US $20.49
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 Lot/2 Pendant/Earrings Turquoise/Sterling VGC US $49.00
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 Beautiful White Turquoise Tassel Pendant Necklace US $14.74
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 TEN THOUSAND THINGS 14K YELLOW GOLD CRYSOPRASE BEAD TURQUOISE PENDANT NECKLACE US $275.00
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 ANTIQUE NATURAL ITALIAN JADE/TURQUOISE TRIANGULAR PENDANT/NECKLACE WITH MARKING US $122.99
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 ANTIQUE A DISHTA SIGNED TURQUOISE STERLING SILVER CROSS PENDANT W/SILVER CHAIN US $82.99
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 Vintage Turquoise Pendant US $3.99
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 Recent Vintage Necklace Turquoise Beads Large Circle Pendant + Tassel ~ Awesome! US $5.00
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 VINTAGE SILVER NICE SMALLER TURQUOISE PENDANT Z14 US $55.00
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 VINTAGE SILVER TURQUOISE PENDANT Z14 US $55.00
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 Vintage Hammered Turquoise Cross Sterling 925 Charm Pendant US $12.95
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 Vintage Onyx Turquoise Lapis Carnelian Cross Sterling 925 Slide Pendant US $12.95
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 Vintage Silver Turquoise Marcasite Dangling Pendant St 925 Blue US $9.99
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 Vintage Turquoise Filigree Movable Fish Silver Charm Pendant US $46.00
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 Vtg 60's Boho 2 Strand Silvertone Double Turquoise OWL Pendant Necklace US $12.00
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 Pendant Necklace with Dangles Turquoise Colored Stones Mod Retro US $8.99
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 VTG WALLPAPER PENDANT FLOWER RETRO TURQUOISE NECKLACE US $6.50
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 Vintage Sterling Turquoise Plata Signed Brooch/Pendant US $29.99
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 ART DECO 14K GOLD DISCO BALL TURQUOISE PENDANT US $499.95
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 Vintage Sterling Silver Large Turquoise Chunk Pendant Necklace US $18.99
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 Vintage Silver Turquoise FOB pendant charm 900 sterling antique victorian style US $14.90
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 VINTAGE STERLING TURQUOISE SET RING AND PENDANT. US $89.00
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 Gold Wire Wrapped Vibrant Turquoise Partridge Pendant US $60.00
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 Stunning Turquoise Pendant in Antique Silver Plated Set US $16.19
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 Large Bold Faux Turquoise Cab+Goldtone Pendant Perfect! US $6.50
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 Vintage Sterling Silver Turquoise Stone Pendant Necklace Southwest US $19.90
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 VTG ARTIST STAMPED RICH BLUE TURQUOISE STERLING SILVER 1970’S PENDANT NECKLACE US $26.77
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 Vintage Sterling Silver Turquoise Necklace Pendant, Aztec, Egyptian Totem US $27.99
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 Thomas Andy Navajo Southwestern 925 Sterling Silver Turquoise Coral Pendant 21g US $39.99
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 1970s SQUASH BLOSSOM ART BRAND PENDANT NECKLACE SOUTHWESTERN TURQUOISE US $5.00
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 MUST SEE UNIQUE ANTIQUE VICTORIAN 1870S 14K GOLD TURQUOISE BOW PENDANT NECKLACE! US $495.00
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 Vtg 2 1/2" MAGNIFICENT Pendant Faux Turquoise Quality! EX--2+items ship free US US $23.80
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 BLACK GLASS SEED BEAD NECKLACE W/CORAL BEADS & TURQUOISE ON SILVERTONE PENDANT US $19.99
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 Sterling Silver Turquoise Pendant 21x38mm US $16.99
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 OLD VINTAGE NAVAJO INDIAN STERLING SILVER TURQUOISE PENDANT US $4.84
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 VINTAGE SOUTHWESTERN TRIBAL STERLING SILVER & TURQUOISE BUG PIN PENDANT US $67.99
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 Gorgeous Unique Chic Handcraft Turquoise Fuchsia Pendant Necklace Long Chain US $9.90
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 Estate Diamond Persian Turquoise Princess 14k Gold Drop Pendant Heirloom Jewelry US $636.00
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 Sterling Silver Genuine Large Turquoise Pendant 925 US $69.99
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 Vintage Celebrity Faux Turquoise Red Rhinestones & Fluer De Lys Pendant Necklace US $34.99
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 10 AFGHAN TRADITIONAL TURQUOISE STONE LOVE PENDANTS US $30.00
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 Vintage Southwestern Blue Faux Turquoise Pendant Chain Necklace US $29.99
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 Estate Diamond Turquoise Flowers 14k Gold Drop Cocktail Pendant Heirloom Jewelry US $716.00
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 Vintage Copper Large Faux Turquoise PENDANT Necklace US $35.00
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 ANTIQUE VICTORIAN GOLD WASH SILVER & TURQUOISE PENDANT NECKLACE US $260.75
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 SALE! 1 3/4"W Old Vintage Sterling Turquoise Petit Point Brooch or Pendant US $175.00
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 Large Antique STERLING & TURQUOISE Cabochon FOB CHARM PENDANT 2"~18g US $139.99
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 ANTIQUE 15K GOLD GARNET PUFFED HEART TURQUOISE CHARM SMALL PENDANT c1900 US $165.00
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 Vintage goldtone enamel coral turquoise PEACE pendant necklace US $24.59
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 Thermoset Turquoise Owl Pendant / Necklace No Reserve US $19.99
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 VTG SIGN ART 2 OF GLASS BLUE TURQUOISE CHUNKY BOLD PENDANT NECKLACE&BANGLE ! US $9.99
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 14KT TURQUOISE ENAMEL RUBY DIAMOND PENDANT EARRINGS US $1,620.00
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 vintage antique 24 ct solid gold turquoise necklace pendant jewely US $1,499.00
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 Vintage 1980's Turquoise Skeleton Biker Helmet Pendant US $7.00
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 Pierced Hoop Silvertone Earrings Faux Turquoise Pendant Necklace Monet US $29.99
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 Victorian 15ct Gold Turquoise Pendant on original 15ct Gold Chain US $308.14
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 Vintage Genuine Copper Pendant w/ Turquoise Colored Stone US $5.00
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 VINTAGE ALPACA GOLD GILDED SILVER CARNELIAN STONE TURQUOISE BEADS PENDANT US $27.00
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 Vintage Sterling Charm Pendant - "Wood" Finished Cross w Turquoise US $9.00
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 Vintage Sterling Pendant - Headdress Coral, MOP & Turquoise by Starline US $28.00
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 Signed Roma Silver Tone Cross Crucifix Pendant Faux Turquoise Cabochons Necklace US $9.99
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 Vintage Turquoise Necklace with Dreamcatcher Pendant US $16.00
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 925 Sterling Silver Tibetian Turquoise Pendant US $38.80
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 925 Sterling Silver Turquoise Pendant without chain US $38.80
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 Vintage necklace,bracelet, turquoise earrings, and turquoise butterfly pendant US $5.95
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 vintage OWL Pendant, silver and faux turquoise 2" Tall US $.99
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Turquoise Pendant
A Note on Stabilizing Turquoise
Turquoise is a mix of copper and aluminum compounds. These compounds are usually in the form of hydrous phosphates of these two elements, along with other secondary compounds. Though the quantities of the secondary compounds are usually quite small, they can have a significant impact on the overall properties of the turquoise specimen. Look at your silver turquoise pendants, and in most cases, you will see that the stone has a deep sky blue color. This color is due to the presence of copper. If the specimen contains trace amounts of iron, the color would gain a greenish tinge. On the rare occasion when zinc enters the matrix, the color tends to be yellow. In the vast majority of cases, natural turquoise is quite soft, light, and porous. This makes it very difficult to cut and polish the stone. Even after the jewelry has been made, the turquoise tends to absorb moisture and oils from the skin and gradually weakens and deteriorates with time. Less than five percent (less than three percent, by some estimates) of the world’s turquoise is of good enough quality to be directly used in jewelry. Natural turquoise is rare and therefore very costly. This makes it impossible to use natural turquoise in fashion jewelry designs. To overcome this problem some bright gemologists came up with a few different innovative methods to improve the quality of moderate and even low quality turquoise specimens so that this beautiful and popular gemstone could be used in fashion jewelry in a cost effective manner.
- The most basic form of stabilization is to coat the surface of the stone with wax or vegetable oil. This process has some very minor effects on sealing the pores on the surface of the stone, and gives the stone a shine. However, the treatment is very temporary in nature and as such is not effective in improving the overall quality of the stone.
- The most commonly used technique of stabilization is to treat the stone with a clear epoxy resin. The resin is used in liquid form. The stone is kept immersed in the epoxy resin liquid where capillary action sucks the liquid into the pores, or the liquid is infused into the stone by simultaneous application of pressure and vacuum. The resin penetrates the stone and is allowed to harden. This process reduces the pore space within the stone making it less susceptible to absorption of liquids. The stabilized stone is also easier to handle and can be polished to have a shinning finish. An experienced gemologist can under magnification, identify whether or not the stone has been stabilized using this method.
- State-of-the-art in turquoise stabilization is to use vaporized silica. Silica in vapor form is infused into the stone. Similar to epoxy stabilization, this process reduces the porosity of the stone and makes it suitable for jewelry applications. The process is however much more complex that epoxy resin stabilization, and must be carried out under controlled conditions in a laboratory with proper health and safety safeguards in place. When performed effectively, silica stabilization is so good that not even an experienced person can examine the stone and say with confidence whether or not the stone was stabilized.
Turquoise that has been stabilized using resin or silica is suitable for fashion jewelry applications such as turquoise pendants, accessory beads in a cultured pearl necklace, or even sterling silver jewelry where turquoise is the only gemstone. Gemologists and jewelers consider stabilized turquoise to be genuine turquoise, although the ethical sellers will clearly inform you in the turquoise you are buying is natural or stabilized. It is important to note that without the process of stabilization most of the southwestern jewelry on the market today would not have been possible.
About the Author
Dale is a geo-professional in the Southwestern United States, and an avid and amateur gemmologist and a fashion jewelry buff.
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