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THE MINERAL ZIRCON


Zircon's reputation has suffered of late due to the introduction of a diamond simulant. So for the record, zircon (zirconium silicate, ZrSiO4) is NOT the same material as the artificial gem material Cubic Zirconia (zirconium oxide, ZrO2). However with that in mind, zircon has been used as a diamond simulant both for innocent and nefarious reasons. Zircon resembles diamond in luster and fire and colorless zircons have been mistaken for diamonds by experienced jewelers. Zircon can make a very attractive and affordable gemstone. It is found in browns and greens but can be heat treated to beautiful blue and golden colors. Colorless material is produced in this way as well. Zircon is the December Birthstone.

As a mineral specimen, zircon is uncommon in most rock shops because attractive specimens are rare. However, fine specimens of well shaped zircons are available and are in demand. The typical simple crystal of zircon is a tetragonal prism terminated with four sided pyramids at each end. The prism may be lacking and the crystal can look octahedral. More complex crystals have faces of a less steeply inclined prism that taper the terminations. Also a secondary prism may truncate the primary prism by cutting off its edges and producing an octagonal cross-section through the crystal. There is even an eight sided pyramid (actually a ditetragonal dipyramid) that may modify the four sided pyramids. As you can see, zircon crystals can go from a very simple crystal to a rather complexly faceted form.

PHYSICAL CHARACTERISTICS:

  • Color is brown, red, yellow, green, blue, black, and colorless.
  • Luster is adamantine.
  • Transparency crystals are transparent to translucent.
  • Crystal System tetragonal; 4/m 2/m 2/m
  • Crystal Habits: dipyramidal and prismatic as discussed above.
  • Cleavage indistinct in two directions, prismatic.
  • Fracture is uneven
  • Hardness is 7.5
  • Specific Gravity is 4.6-4.7
  • Streak white
  • Associated Minerals albite, biotite, garnets, xenotime and monazite.
  • Other Characteristics: is sometimes fluorescent and darker crystals may be radioactive due to impurities of rare earth elements. Also index of refraction is 1.92 - 2.01
  • Notable Occurances Seiland, Norway; Pakistan; Russia; Bancroft and Sudbury, Ontario, Canada and New Jersey and Colorado, USA.
  • Best Field Indicators are crystal habit, hardness, luster and density.

Zircon Jewelry - Hover over an item for more information
Onyx Zircon-Cross Beaded Bracelet - MCL by Matthew Campbell Laurenza
Onyx beads; silvertone hardware. Square cross station with pave white zircon. 1.62 total zircon carat weight.Only $205.00 at Neiman Marcus
no photoOnyx Zircon-Cross Beaded Bracelet - MCL by Matthew Campbell Laurenza
$205.00
Neiman Marcus
"14k Gold 17mm Men's Virgin Mary Onyx Ring With Cubic Zircon"
"14K Gold Men's Virgin Mary Onyx ring with Cubic Zirconia accents; measures approximately 17mm W x 17mm across the top."Only $394.00 at Sarraf Jewelry
no photo"14k Gold 17mm Men's Virgin Mary Onyx Ring With Cubic Zircon"
$394.00
Sarraf Jewelry
Crown-Cap Leather Cuff, Black - MCL by Matthew Campbell Laurenza
Braided black leather kick cuff bracelet. Silvertone metal crown end caps with enamel and zircon detail. Zircon, 2.25 total carat weight. Opening for slip-on style.Only $365.00 at Neiman Marcus
no photoCrown-Cap Leather Cuff, Black - MCL by Matthew Campbell Laurenza
$365.00
Neiman Marcus
Sterling Silver Pave Blue Zircon & Diamond Marquise Ring - Alexis Bittar Fine
Alexis Bittar Fine ring. Highly polished sterling silver. Pave blue zircon and gray diamonds. Marquise-shaped center, 16x7mm. Slim tubular band, 2mm wide.Only $995.00 at Neiman Marcus
no photoSterling Silver Pave Blue Zircon & Diamond Marquise Ring - Alexis Bittar Fine
$995.00
Neiman Marcus
"14k Gold 6.5mm W Double Channel-set Round Cubic Zircon"
"14K Gold 6.5mm W double channel-set round Cubic Zirconia ring."Only $310.00 at Sarraf Jewelry
no photo"14k Gold 6.5mm W Double Channel-set Round Cubic Zircon"
$310.00
Sarraf Jewelry
Ross-Simons 1.80ct Rhodolite Garnet, .35ct t.w. White Zircon Ring in Silver
An astonishing alternative to ruby and diamonds, this ring showcases a 1.80 ct. t.w. rhodolite garnet oval in a scalloped frame of .35 ct. t.w. white zircon stones that continue along the sides. Sterling silver ring.Only $97.50 at Ross-Simons
no photoRoss-Simons 1.80ct Rhodolite Garnet, .35ct t.w. White Zircon Ring in Silver
$97.50
Ross-Simons
Ross-Simons 1.35 ct. t.w. White Zircon Eternity Band in Sterling Silver. Size 7
Alternating marquise and round shapes fashion this lovely eternity band with glittery 1.35 ct. t.w. white zircon. Sterling silver ring.Only $150.00 at Ross-Simons
no photoRoss-Simons 1.35 ct. t.w. White Zircon Eternity Band in Sterling Silver. Size 7
$150.00
Ross-Simons
Ross-Simons 11.00ct t.w. White Zircon Double Open Circle Pendant Necklace. 18"
Your love shines forever - express it with this double open circle eternity pendant necklace. Small and large open circles are bedecked with dazzling 11.00 ct. t.w. white zircon rounds. Suspends from a cable chain with lobster clasp. Sterling silver...Only $75.00 at Ross-Simons
no photoRoss-Simons 11.00ct t.w. White Zircon Double Open Circle Pendant Necklace. 18"
$75.00
Ross-Simons
Ross-Simons 3.60ct t.w. Amethyst, .55ct t.w. White Zircon Drop Pendant Necklace. 18"
This drop pendant necklace is royal in appearance, with majestic color and glorious sparkle. A bezel-set .30 carat amethyst dangles a 3.30 carat amethyst crowned on .55 ct. t.w. white zircon. Suspends from a cable chain with lobster clasp. Sterling...Only $90.00 at Ross-Simons
no photoRoss-Simons 3.60ct t.w. Amethyst, .55ct t.w. White Zircon Drop Pendant Necklace. 18"
$90.00
Ross-Simons
Ross-Simons 2.65ct Blue Topaz, .92ct t.w. Multi-Stone Ring in Gold Over Sterling
Start a sparkling conversation with this exquisitely detailed 2.65 carat blue topaz and .92 ct. t.w. multi-stone ring. Highlighted by cognac zircon and white sapphires. We love the intricately detailed frame around the center stone. 18kt yellow gold...Only $285.00 at Ross-Simons
no photoRoss-Simons 2.65ct Blue Topaz, .92ct t.w. Multi-Stone Ring in Gold Over Sterling
$285.00
Ross-Simons
"14k Gold Ladies Sagittarius Zodiac Ring"
"14K Gold Ladies Zodiac Zircon CZ Center Stone ring representing Sagittarius; measures approximately 14mm W x 13mm across the top."Only $278.00 at Sarraf Jewelry
no photo"14k Gold Ladies Sagittarius Zodiac Ring"
$278.00
Sarraf Jewelry
Ross-Simons Green Onyx Drop Earrings With White Zircon in Sterling Silver
Long and luxe, these teardrop-shaped green onyx drop earrings send a message of elegance. Topped with white zircon in a flashy floral motif. Clutch/post, sterling silver earrings.Only $105.00 at Ross-Simons
no photoRoss-Simons Green Onyx Drop Earrings With White Zircon in Sterling Silver
$105.00
Ross-Simons
Ross-Simons 1.20ct t.w. Aquamarine, .80ct t.w. White Zircon Oval Drop Earrings
These heavenly blue earrings are the perfect finishing touch to get you red-carpet ready. Double rows of shimmering white zircon surround breathtaking aquamarines in these posh, oval drop earrings. Leverback, sterling silver earrings. Aquamarine...Only $112.50 at Ross-Simons
no photoRoss-Simons 1.20ct t.w. Aquamarine, .80ct t.w. White Zircon Oval Drop Earrings
$112.50
Ross-Simons
Ross-Simons Opal and .90 ct. t.w. White Zircon Ring in Sterling Silver
In a brilliant burst of .90 ct. t.w. white zircon, the smoldering hues of this ring's oval opal are taken to new heights. Sterling silver ring. Opal birthstones are the perfect gift for October birthdays.Only $160.00 at Ross-Simons
no photoRoss-Simons Opal and .90 ct. t.w. White Zircon Ring in Sterling Silver
$160.00
Ross-Simons
Ross-Simons 3.10 ct. t.w. White Zircon Braid Ring in Sterling Silver
Get the look of diamonds for less with this fashionable braid ring. Rows of 3.10 ct. t.w. white zircon rounds are woven together in a shimmering, textural design. Sterling silver ring.Only $97.50 at Ross-Simons
no photoRoss-Simons 3.10 ct. t.w. White Zircon Braid Ring in Sterling Silver
$97.50
Ross-Simons

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