IOLITE, the gemstone variety of cordierite

VARIETY INFORMATION:

  • VARIETY OF: Cordierite, Mg2Al4Si5O18, Magnesium Aluminum Silicate.
  • USES: Gemstone
  • COLOR: Various shades of yellowish gray to blue to a blue violet, deeper along the crystal axis.
  • INDEX OF REFRACTION: 1.52 - 1.57
  • BIREFRINGENCE: is good
  • HARDNESS: 7 - 7.5
  • CLEAVAGE: poor in one direction
  • CRYSTAL SYSTEM: orthorhombic
  • We have natural Iolite Mineral Specimens
    For Iolite Jewelry, see --> IOLITE JEWELRY

Iolite is a popular and interesting gemstone, and is the gem variety of the mineral cordierite. It has a delicate and quite pretty violet blue color that is unlike other gemstones, although it has been compared to a light blue sapphire. It is this reason that it is sometimes known as "water sapphire". Although the color is attractive and popular, iolite is not extremely rare and is therefore affordable.

Pleochroism is very pronounced in iolite and is seen as three different color shades in the same stone. In the viewing an iolite stone, the colors violet blue, yellow gray and a light blue can be seen, all a result of pleochroism. Tanzanite is a blue-violet gemstone variety of the mineral zoisite, has strong pleochroism as well and can be easily confused with iolite. However, tanzanite is usually more strongly colored, its pleochroic colors vary from dark blue, green-yellow and red-purple and it has greater fire.

The major sources of gem grade iolite come from Sri Lanka, India, Madagascar and Burma.

Iolite Jewelry - Hover over an item for more information
Emerald-Cut Iolite Sterling Silver Engagement Ring - Ara Ring
A classic, four-prong setting is the perfect way to display this 8mm showstopper, emerald-cut gem.Only $295.00 at Gemvara
no photoEmerald-Cut Iolite Sterling Silver Engagement Ring - Ara Ring
$295.00
Gemvara
Round Iolite Sterling Silver Mother's Ring with London Blue Topaz & Rhodolite Garnet - A Mother's Gift Ring With Four Gems
This four-gem ring is designed to be set with birthstones to represent four children or a couple and two children. This ring can be worn in multiples so you can keep all the ones you love close at hand.Only $260.00 at Gemvara
no photoRound Iolite Sterling Silver Mother's Ring with London Blue Topaz & Rhodolite Garnet - A Mother's Gift Ring With Four Gems
$260.00
Gemvara
Sterling Silver Necklace with Iolite - Love Letters 'H' Pendant With Gem
You choose the lowercase letter below and the meaning behind it. Artisans handcraft the precious metal of your choice in a single flowing line, and accent the design with your favorite gem. The chain threads directly through the letter.Only $135.00 at Gemvara
no photoSterling Silver Necklace with Iolite - Love Letters 'H' Pendant With Gem
$135.00
Gemvara
Round Iolite Sterling Silver Promise Ring - Simply Round Solitaire
Less is more in this sleek solitaire ring with round brilliant-cut center. Delicate, feminine and simply stylish, this ring is perfect worn alone or stacked. Different stone sizes and band widths are available.Only $180.00 at Gemvara
no photoRound Iolite Sterling Silver Promise Ring - Simply Round Solitaire
$180.00
Gemvara
Oval Iolite and White Topaz Ring in Sterling Silver, One Size
Rich in color, this iolite ring is surrounded by a sparkling halo of micropave white topaz gemstones in sterling silver.Only $175.00 at Blue Nile
no photoOval Iolite and White Topaz Ring in Sterling Silver, One Size
$175.00
Blue Nile
Emerald-Cut Iolite Sterling Silver Engagement Ring - Ara Ring
A classic, four-prong setting is the perfect way to display this 7mm showstopper, emerald-cut gem. This piece is carefully handcrafted in your choice of gems and metals.Only $215.00 at Gemvara
no photoEmerald-Cut Iolite Sterling Silver Engagement Ring - Ara Ring
$215.00
Gemvara
Round Peridot Sterling Silver Vintage-Inspired Ring with Iolite & Emerald - Venus Band
Scalloped shells form a fluted pattern on each side of this feminine tapered band, carefully handcrafted in your choice of gems and metals.Only $215.00 at Gemvara
no photoRound Peridot Sterling Silver Vintage-Inspired Ring with Iolite & Emerald - Venus Band
$215.00
Gemvara
Round Iolite Sterling Silver Necklace with London Blue Topaz & Blue Topaz - Anytime Heart Pendant
This pretty little heart pendant is perfect for any and every occasion.Only $160.00 at Gemvara
no photoRound Iolite Sterling Silver Necklace with London Blue Topaz & Blue Topaz - Anytime Heart Pendant
$160.00
Gemvara
Sterling Silver Necklace with Iolite - Initials 'G' Key
Hold the key to someone's heart close to your own. Choose a letter below, then a precious metal and gemstone, and artisans will handcraft a key pendant that's perfectly yours.Only $165.00 at Gemvara
no photoSterling Silver Necklace with Iolite - Initials 'G' Key
$165.00
Gemvara
Round Sapphire Sterling Silver Vintage-Inspired Ring with Iolite & Sapphire - Venus Band
Scalloped shells form a fluted pattern on each side of this feminine tapered band, carefully handcrafted in your choice of gems and metals.Only $210.00 at Gemvara
no photoRound Sapphire Sterling Silver Vintage-Inspired Ring with Iolite & Sapphire - Venus Band
$210.00
Gemvara
Sterling Silver Vintage-Inspired Engagement Ring with Amethyst & Iolite - Summer Palace Ring
The scrolls and curves of this elegant ring are inspired by the ornate wrought-iron gates to a Summer palace in Europe.Only $260.00 at Gemvara
no photoSterling Silver Vintage-Inspired Engagement Ring with Amethyst & Iolite - Summer Palace Ring
$260.00
Gemvara
Mystic Marquise Chalcedony/Iolite/Quartz Ring with Diamonds - Alexis Bittar Fine
Alexis Bittar FineMystic Marquise Chalcedony/Iolite/Quartz Ring with DiamondsDetailsLight oxidized sterling silver ring, by Alexis Bittar.Fancy-cut chalcedony, iolite, and ocean blue quartz set in claw prongs.Pave diamond claw prongs.0.08 total diamond...Only $895.00 at Neiman Marcus
no photoMystic Marquise Chalcedony/Iolite/Quartz Ring with Diamonds - Alexis Bittar Fine
$895.00
Neiman Marcus
Round Iolite Sterling Silver Vintage-Inspired Engagement Ring - Rose and Thorn Ring
Wild roses inspired this leafy ring. Elegant thorns surround the sparkling center gem in a stylish celebration of the natural world.Only $295.00 at Gemvara
no photoRound Iolite Sterling Silver Vintage-Inspired Engagement Ring - Rose and Thorn Ring
$295.00
Gemvara
Oval Iolite Sterling Silver Promise Ring - Regina Ring
An oval-cut, 7mm stone takes center stage in this intricately-detailed ring, handcrafted in your choice of gems and metals.Only $180.00 at Gemvara
no photoOval Iolite Sterling Silver Promise Ring - Regina Ring
$180.00
Gemvara
Round Blue Topaz Sterling Silver Mother's Ring with Iolite & Rhodolite Garnet - Anahit Band
This band is inspired by an ancient goddess of fertility and birth and is forged by hand and hammer set with five gemstones.Only $300.00 at Gemvara
no photoRound Blue Topaz Sterling Silver Mother's Ring with Iolite & Rhodolite Garnet - Anahit Band
$300.00
Gemvara
This Site Awarded
Available IOLITE specimens:
see this List of ALL specimens including SOLD ones
 

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