26Apr/11Off
Opal Gemstone
Here are Todays Amazing Opal Gemstone Deals
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 SP75699 GREVIOUR POINT 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 49m Bid now | Add to watch list |
 PROTPTYPE SPIRIT OF THE HORSE AUSSIE Fire Opal Ladies Pendant GORGEOUS Sterling $140.00 Time Remaining: 12d 6h 56m Buy It Now for only: $140.00 Buy It Now | Add to watch list |
 SP60800 CARVED FACE COPPER PURPLE TURQUOISE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 1h 6m Bid now | Add to watch list |
 SP76792 COPPER BLUE ARIZONA TURQUOISE 925 STERLING SILVER PENDANT JEWELRY $11.06 (4 Bids) Time Remaining: 1h 10m Bid now | Add to watch list |
 SP78553 FOSSIL CORAL 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 1h 40m Bid now | Add to watch list |
 GORGEOUS BRIGHT COLORS SOLID 18K GOLD AUSTRALIAN BOULDER OPAL PENDANT 11146 $74.95 Time Remaining: 29d 8h 57m Buy It Now for only: $74.95 Buy It Now | Add to watch list |
 SP75700 TURTELLA JASPER 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 1h 41m Bid now | Add to watch list |
 SP76664 GENUINE CZECH MOLDAVITE 925 STERLING SILVER PENDANT JEWELRY $9.99 Time Remaining: 1h 45m Bid now | Add to watch list |
 SP63119 MEXICAN DENTRITE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 1h 48m Bid now | Add to watch list |
 Italian Sterling Silver MEXICAN RED FIRE OPAL WHITE TOPAZ NECKLACE 18 $79.95 Time Remaining: 29d 16h 20m Buy It Now for only: $79.95 Buy It Now | Add to watch list |
 SP63915 BRUNO JASPER 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 1h 50m Bid now | Add to watch list |
 BLACK DENDRITE OPAL PEAR CITRINE PEARL 925 STERLING SILVER PENDANT 2 1 8 B5787 $5.50 (8 Bids) Time Remaining: 1h 56m Bid now | Add to watch list |
 SP75734 PERIDOT 925 STERLING SILVER PENDANT JEWELRY $14.99 (1 Bid) Time Remaining: 1h 58m Bid now | Add to watch list |
 SP75710 CITRINE QUARTZ 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 2h 3m Bid now | Add to watch list |
 Tanzanite and Blue Fire Opal Inlay 925 Sterling Silver Slide Pendant $30.00 Time Remaining: 14d 10h 43m Buy It Now for only: $30.00 Buy It Now | Add to watch list |
 SP52067 RARE DINOSAUR BONE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 2h 14m Bid now | Add to watch list |
 Australian Opal Topaz 925 Solid Sterling Silver Pendant 1 1 4 Long $3.99 (5 Bids) Time Remaining: 2h 19m Bid now | Add to watch list |
 SP78639 DICHROIC GLASS FIRE OPAL 925 STERLING SILVER PENDANT JEWELRY $8.49 (2 Bids) Time Remaining: 2h 39m Bid now | Add to watch list |
 MULTI COLORED SOLID GEM GRADE AUSTRALIAN OPAL PENDANT 18 kt Y GOLD $420.00 Time Remaining: 29d 11h 14m Buy It Now for only: $420.00 Buy It Now | Add to watch list |
 Beautiful Fire Opal Mermaid Chain $9.00 (1 Bid) Time Remaining: 2h 48m Bid now | Add to watch list |
 SP65040 MEXICAN FIRE OPAL GARNET 925 STERLING SILVER PENDANT JEWELRY $14.99 Time Remaining: 2h 55m Bid now | Add to watch list |
 SP64888 LABRADORITE 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 3h 9m Bid now | Add to watch list |
 STERLING SILVER Mustard Seed Heart Quote Necklace New $66.28 Time Remaining: 27d 14h 11m Buy It Now for only: $66.28 Buy It Now | Add to watch list |
 SP76747 ELEGANT LABRADORITE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 3h 9m Bid now | Add to watch list |
 Natural Untreated Lapis Lazuli Pendent Necklace $0.99 Time Remaining: 3h 16m Buy It Now for only: $4.99 Buy It Now | Bid now | Add to watch list |
 SP65033 COPPER GREEN ARIZONA TURQUOISE 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 3h 33m Bid now | Add to watch list |
 SP51384 RARE BOULDER OPAL 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 3h 34m Bid now | Add to watch list |
 Popcorn Sterling Silver Chain Necklace 16 18 20 24 30 inch $23.75 Time Remaining: 29d 42m Buy It Now for only: $23.75 Buy It Now | Add to watch list |
 SP75709 RUBY ZOISITE 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 3h 36m Bid now | Add to watch list |
 SP61989 BLACK ONYX 925 STERLING SILVER PENDANT JEWELRY $9.49 (3 Bids) Time Remaining: 3h 54m Bid now | Add to watch list |
 SP75712 AQUAMARINE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 3h 55m Bid now | Add to watch list |
 LIME GREEN TIGER STRIPES SOLID BOULDER OPAL PENDANT $145.00 Time Remaining: 29d 11h 12m Buy It Now for only: $145.00 Buy It Now | Add to watch list |
 SP78483 TOP GRADE DENTRITE OPAL 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 4h 10m Bid now | Add to watch list |
 SP76710 GREEN AMETHYST MOONSTONE PERIDOT 925 STERLING SILVER PENDANT JEWELRY $16.99 Time Remaining: 4h 12m Bid now | Add to watch list |
 SP46620 FANTASTIC DICHORIC GLASS 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 4h 17m Bid now | Add to watch list |
 Reversible Blue and White Fire Opal 925 Sterling Silver Cross Pendant $35.00 Time Remaining: 17d 2h 46m Buy It Now for only: $35.00 Buy It Now | Add to watch list |
 SP63854 AGATE DRUZY AMETHYST 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 4h 20m Bid now | Add to watch list |
 SP65094 MAGIC TOPAZ RED CORAL 925 STERLING SILVER PENDANT JEWELRY $9.99 Time Remaining: 4h 34m Bid now | Add to watch list |
 SP76782 PERIDOT QUARTZ 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 4h 51m Bid now | Add to watch list |
 SP57177 BRECCIATED MOOKAITE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 1m Bid now | Add to watch list |
 Stunning Ocean Blue Fire Opal Pendant Bead with 16 Italian Chain 925 Sterling $39.99 Time Remaining: 2d 6h 27m Buy It Now for only: $39.99 Buy It Now | Add to watch list |
 SP78451 RARE MEXICAN FIRE AGATE 925 STERLING SILVER PENDANT JEWELRY $13.99 (1 Bid) Time Remaining: 5h 10m Bid now | Add to watch list |
 SP76759 ELEGANT LABRADORITE 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 5h 10m Bid now | Add to watch list |
 Light blue Opal Heart Pendant with 18 925 Sterling Silver necklace $7.00 Time Remaining: 5h 11m Buy It Now for only: $8.00 Buy It Now | Bid now | Add to watch list |
 WOMENS STERLING SILVER PENDANT NECKLACE TEARDROP BLUE FIRE OPAL 20 3 MM CHAIN $21.99 Time Remaining: 18d 10h 20m Buy It Now for only: $21.99 Buy It Now | Add to watch list |
 SP57343 CHRYSOCOLLA 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 11m Bid now | Add to watch list |
 SP63982 ELEGANT LABRADORITE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 17m Bid now | Add to watch list |
 SP78468 RARE MEXICAN FIRE AGATE 925 STERLING SILVER PENDANT JEWELRY $13.99 Time Remaining: 5h 19m Bid now | Add to watch list |
 French Wheat Chain Necklace 18mm 16 18 20 24 inch Sterling Silver $32.30 Time Remaining: 26d 12h 27m Buy It Now for only: $32.30 Buy It Now | Add to watch list |
 SP65048 MAGIC TOPAZ RED CORAL 925 STERLING SILVER PENDANT JEWELRY $9.99 Time Remaining: 5h 19m Bid now | Add to watch list |
 SP75697 CITRINE DRUZY 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 24m Bid now | Add to watch list |
 SP57171 BRECCIATED MOOKAITE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 24m Bid now | Add to watch list |
 SP76678 GENUINE CZECH MOLDAVITE 925 STERLING SILVER PENDANT JEWELRY $9.99 Time Remaining: 5h 26m Bid now | Add to watch list |
 ELECTRIFYING LIME GREEN SOLID BLACK OPAL PENDANT $90.00 Time Remaining: 29d 11h 16m Buy It Now for only: $90.00 Buy It Now | Add to watch list |
 SP59218 GENUINE LARIMAR 925 STERLING SILVER PENDANT JEWELRY $11.99 Time Remaining: 5h 34m Bid now | Add to watch list |
 SP56539 BLUE LACE AGATE AMETHYST 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 5h 39m Bid now | Add to watch list |
 Vintage Sapphire Pendant with Diamonds Around and 14K Gold Chain by Parle $25.95 Time Remaining: 5h 40m Buy It Now for only: $33.75 Buy It Now | Bid now | Add to watch list |
 WOMENS 925 STERLING SILVER WHITE FIRE OPAL SQUARE PENDANT 20 CHAIN $17.99 Time Remaining: 27d 5h 23m Buy It Now for only: $17.99 Buy It Now | Add to watch list |
 SP58026 MAGIC TOPAZ 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 45m Bid now | Add to watch list |
 SP75755 AMAETHYST 925 STERLING SILVER PENDANT JEWELRY $14.99 Time Remaining: 5h 53m Bid now | Add to watch list |
 SP60049 RUBY ZOSITE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 5h 54m Bid now | Add to watch list |
 14K WHITE GOLD NECKLACE ANTIQUE STAFFORDSHIRE CHINA HARLEQUIN OPAL MUST SEE $150.00 Time Remaining: 4d 11h 2m Buy It Now for only: $150.00 Buy It Now | Add to watch list |
 Australian Opal Topaz 925 Solid Sterling Silver Pendant 1 Long $0.99 (1 Bid) Time Remaining: 6h Bid now | Add to watch list |
 SP60256 GREEN SOLAR QUARTZ 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 6h 17m Bid now | Add to watch list |
 SP64569 ELEGANT LABRADORITE 925 STERLING SILVER PENDANT JEWELRY $7.99 (1 Bid) Time Remaining: 6h 17m Bid now | Add to watch list |
 Ladies 10K opal and Diamond Pendant $115.99 Time Remaining: 6h 19m Buy It Now for only: $139.99 Buy It Now | Bid now | Add to watch list |
 Genuine PINK OPAL HAMSA Hand Sterling Silver Necklace $23.70 Time Remaining: 25d 2h 42m Buy It Now for only: $23.70 Buy It Now | Add to watch list |
 Australian Opal Topaz 925 Solid Sterling Silver Pendant 1 Long $0.99 (1 Bid) Time Remaining: 6h 29m Bid now | Add to watch list |
 3 STONE WHITE FIRE OPAL RING SIZE9 IN SILVER $14.99 Time Remaining: 6h 30m Bid now | Add to watch list |
 SP76705 BLUE TOPAZ PERIDOT 925 STERLING SILVER PENDANT JEWELRY $16.99 Time Remaining: 6h 31m Bid now | Add to watch list |
 LARGE 100 FLAWLESS GEM SOLID GEM GRADE OPAL PENDANT 14 kt Y GOLD $720.00 Time Remaining: 29d 11h 13m Buy It Now for only: $720.00 Buy It Now | Add to watch list |
 SP64156 BRECCIATED MOOKAITE CITRINE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 6h 34m Bid now | Add to watch list |
 ladies 14Kt Opal and Diamond Pendant $89.99 Time Remaining: 6h 42m Buy It Now for only: $99.99 Buy It Now | Bid now | Add to watch list |
 SP64559 FACETED BLACK ONYX CUT 925 STERLING SILVER PENDANT JEWELRY $7.99 (3 Bids) Time Remaining: 6h 51m Bid now | Add to watch list |
 ELEGANT WHITE GREEN FIRE OPAL 925 STERLING SILVER PENDANT $21.99 Time Remaining: 16d 6h 5m Buy It Now for only: $21.99 Buy It Now | Add to watch list |
 SP60636 SEPTARIAN GEODE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 6h 54m Bid now | Add to watch list |
 Ladies 10k Opal and Diamond Pendant $29.99 Time Remaining: 6h 57m Buy It Now for only: $39.99 Buy It Now | Bid now | Add to watch list |
 Australian Opal White Topaz 925 Solid Sterling Silver Pendant 1 1 5 Long $8.01 (10 Bids) Time Remaining: 7h Bid now | Add to watch list |
 8mmx6mm Fire White Opal White Topaz Pendant Necklace 18 Chain $34.85 Time Remaining: 7h 6m Bid now | Add to watch list |
 Mercury Mist Topaz 10x8 Oval Silver Necklace 18 Inch $26.99 Time Remaining: 13d 1h 33m Buy It Now for only: $26.99 Buy It Now | Add to watch list |
 SP75740 BLUE TOPAZ 925 STERLING SILVER PENDANT JEWELRY $14.99 Time Remaining: 7h 22m Bid now | Add to watch list |
 SP57173 BLUE MAGIC TOPAZ 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 7h 27m Bid now | Add to watch list |
 Tanzanite Australian Opal 925 Solid Sterling Silver Pendant $3.76 (4 Bids) Time Remaining: 7h 29m Bid now | Add to watch list |
 31 ctw Multi color Solid Opal Pendant sterling silver $250.00 Time Remaining: 29d 7h 13m Buy It Now for only: $250.00 Buy It Now | Add to watch list |
 BEAUTIFUL 3 CT TANZANITE BLUE OPAL TANZANITE 925 STERLING SILVER PENDANT $14.99 Time Remaining: 7h 38m Bid now | Add to watch list |
 SP50850 ABALONE SHELL CITRINE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 7h 44m Bid now | Add to watch list |
 SP64918 RARE NATURAL ETHIOPIAN OPAL 925 STERLING SILVER PENDANT JEWELRY $13.99 Time Remaining: 7h 44m Bid now | Add to watch list |
 WOMENS GIRLS TEENS STERLING SILVER BLUE FIRE OPAL CROSS NECKLACE PENDANT $14.99 Time Remaining: 26d 22h 58m Buy It Now for only: $14.99 Buy It Now | Add to watch list |
 SP60760 CITRINE DRUZY CITRINE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 7h 47m Bid now | Add to watch list |
 SP59515 GREEN SOLAR QUARTZ 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 7h 53m Bid now | Add to watch list |
 SP76722 MOONSTONE BLUE TOPAZ 925 STERLING SILVER PENDANT JEWELRY $16.99 (1 Bid) Time Remaining: 7h 57m Bid now | Add to watch list |
 SP76791 PERIDOT QUARTZ 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 8h Bid now | Add to watch list |
 BANDED AGATE RHODOLITE GARNET 925 STERLING SILVER PENDANT $89.99 Time Remaining: 29d 9h 27m Buy It Now for only: $89.99 Buy It Now | Add to watch list |
 SP76715 AUSTRALIAN OPAL AMETHYST 925 STERLING SILVER PENDANT JEWELRY $16.99 Time Remaining: 8h 2m Bid now | Add to watch list |
 SP75762 AMAETHYST 925 STERLING SILVER PENDANT JEWELRY $14.99 Time Remaining: 8h 3m Bid now | Add to watch list |
 SP56427 COPPER RED ARIZONA TURQUOISE 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 8h 4m Bid now | Add to watch list |
 BEAUTIFUL OCEANIC BLUE SOLID OPAL PENDANT $120.00 Time Remaining: 6d 11h 10m Buy It Now for only: $120.00 Buy It Now | Add to watch list |
 SP60792 BRECCIATED MOOKAITE CITRINE PEARL 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 8h 6m Bid now | Add to watch list |
 SP51823 HEART RED CORAL 925 STERLING SILVER PENDANT JEWELRY $7.99 Time Remaining: 8h 7m Bid now | Add to watch list |
 LUXURIOUS 1 CT TANZANITE OPAL TANZANITE 925 STERLING SILVER PENDANT $17.99 Time Remaining: 8h 8m Bid now | Add to watch list |
More Great Information on Opal Gemstone:
what does SiO2 + H2O form?
what is the chemical formula it forms? when the water evaporates I think it's said progressively make opal gemstone? Is this correct? How does it eventually become opal ?
is SiO2 Silica?
Opal is a hydrated form of amorphous silica with the chemical formula SiO2.nH2O, where "n" varies from 1 to 21 weight per cent. Opal occurs in two forms: precious opal with a play-of-color, and opal with no play-of-color called potch or common opal. Directly from sedimentary and secondary from the alteration of high silica igneous extrusive rocks, such as granites.
Most precious opal forms when large amounts of terrestrial water literally wash through a sandstone (or a similar rock) and chemically weather it. The result of this deep chemical weathering process is the production of large quantities of dissolved silica (also called quartz). This solution then percolates, under the influence of gravity, through joints and faults in the rock strata below until it reaches an impervious level (no more fractures). As the silica solution comes to rest, it spreads out along this level or fills voids or suitable sights within the strata and begins to solidify. Eventually, the evaporation of water takes place and opal is formed from the trapped silica solution.
There are some deposits of volcanic precious opal commonly formed in volcanic rocks such as andesite (Hungary), basalt (Honduras), and rhyolite (Mexico).
Note, however, that the formation of opal does require these special circumstances. You can't just fill a bucket with water, toss in some beach sand, then wait for all the water to evaporate and expect to get opal.