Petalite Gemstone Information

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Petalite is a beautiful natural gemstone, but remains largely unknown due to its rarity.  Fine quality Petalite is quite lovely, and definitely deserves a place in collections, especially in larger sizes. Petalite can be cut into bright stones with a vitreous luster, and colorless pieces are often faceted into exceptionally sparkling gems. With a hardness of 6 - 6.5, Petalite is suitable for necklaces, earrings or pendants. Petalite was named after the Greek word for "leaf" because its cleavage is perfect, like the veins and junctions in a leaf.

The prices and value of Petalite can vary tremendously, depending on the size and quality of the gemstone. AJS Gems is your source for the highest quality Petalite gems and many other precious colored stones from across the globe, available at Bangkok direct wholesale prices. Creating the finest jewelry starts with finding the best gemstones, and the best gemstones are found at AJS Gems.

Petalite Gemstones

Why Buy Loose Gemstones Instead of Pre-Set Jewelry?
There are many reasons, but mainly it comes down to value and choice...

When buying your Petalite gemstone loose instead of a pre-set stone, you can be sure that you are getting the best value for your money.  Loose gemstones are less expensive, a better value, and you can really see what you are paying for.  The most important part of getting the right price and finding the best value is to first see what you're getting.  A jewelry setting will hide the inclusions inside a gem, and can deepen or brighten its color.  With a loose stone you can much more easily inspect the gem and see it for what it really is.  In this way you can get a better idea of its true worth and be sure you are paying a fair price.

The second advantage of buying a loose gemstone is choice.  You are free to pick the exact color, cut, shape and variety of the stone for the setting of your dreams, be it yellow gold, white gold, platinum or silver; prong set or bezel set with diamond accents.  You can experience the joy of creating your very own, one-of-a-kind jewelry design. Choose from a variety of jewelry settings and styles to create a completely original presentation that will perfectly suit your individual gemstone and will be as unique as you are!


Petalite Pendant                        Petalite Jewelry



Origin Canada, USA, Brazil, Italy, Namibia, Mozambique, Zimbabwe, Russia, Burma, Australia.
Color Colorless, pink, grey, yellow, yellow grey, to white
Refractive Index 1.50 - 1.52
Chemical Composition  LiAlSi4O10
Hardness  6 - 6.5
Density  2.3-2.5
Crystal Structure Monoclinic


Petalite Crystal                                                                                   Petalites


Petalite, also known as Castorite is a lithium aluminium tectosilicate mineral crystallizing in the monoclinic system. It occurs as colorless, grey, yellow, yellow grey, to white tabular crystals and columnar masses. Petalite has a hardness of 6 to 6.5.

Petalite has a refractive index ranging from 1.50 - 1.52. The refractive index (RI), measured using a refractometer, is an indication of the amount light rays are bent by a mineral.  Birefringence is the difference between the minimum and maximum RI. When birefringence is high, light rays reflect off different parts of the back of a stone causing an apparent doubling of the back facets when viewed through the front facet. 

Most gems have a crystalline structure. Crystals have planes of symmetry and are divided into seven symmetry systems. The number of axes, their length, and their angle to each other determine the system to which a crystal belongs.  Petalite crystalizes in the monoclinic crystal system.  Petalite commonly is found in tabular prismatic crystals and columnar masses.


Petalite is a very unique mineral that offers some beautiful pastel colors. The colorless or white variety is most often used as a gemstone.


Petalite can be cut into bright stones with a vitreous luster, and colorless pieces are often faceted into exceptionally sparkling gems.

Petalite can be cut into most common gemstone shapes and many fancy shapes as well.


There are no known enhancements for Petalite.
AJS Gems fully discloses any and all treatments to our gemstones.

Petalite was first discovered in Sweden in the 18th century.  A rare gemstone, Petalite is found in small deposits in Canada, USA, Brazil, Italy, Namibia, Mozambique, Zimbabwe, Russia, Burma, Australia.  Petalite occurs in lithium-bearing pegmatites with spodumene, lepidolite, and tourmaline.  Petalite develops in moderately flat horizontal crystals. Therefore, it is infrequent to find significant gemstone substance that presents a beneficial harvest of gem quality material in which to fashion jewelry.

The name "Petalite" comes from the Greek "petalon" for leaf, in allusion to the petal-like perfect basal cleavage.

Petalite is believed to bring about calm and relaxation.

Petalite has been used to ease stress-related illness, excessive worry, ADD, overactivity, and anxiety.

Petalite is sometimes called the "Stone of the Angels".


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