Galarneau's Gems
We Cut Rocks
Colored Gemstones
Index
Gemstones 1
Heliodor Beryl,
Morganite Beryl,
Gemstones 2
Tourmaline,
Topaz
Garnets,
Amethyst,
Smokeytrine,
Citrine,
Star Sapphires
4 Peaks Amethyst
Cabochon Index Gemstones Index Jewelry Index
HOME ORDER Privacy Policy Enhancement Guide
E-mail: gggemswcr@msn.com
http://www.galarneausgems.com
We Cut Rocks
Concave facetting is a new way of facetting gemstones. In the past, grooves cut in the
pavilions of gemstones created patterns. You may be familiar with "Laser
Cutting". These grooves had very little to do with optical properties of the
gemstone. We have taken that process one step further and actually use the
principles of light refraction and facet design to produce our stones. Grooves we cut in
the pavilions, girdles, and crowns are accurately placed to best reflect the light in the
pavilion of the gemstone. Resulting light return is much more brilliant.
Pavilions on concaved stones are 30% shallower than regular facetted stones.
Concaving can be done by itself or combined with regular facetting to produce some one of
a kind designs with very brilliant results. The pictures were taken with my Kodak
DC260 camera using Adobe PhotoShop LE software. I have tried to show the concave
facets and the designs that Gerry has given these stones. Please use the picture and
color descriptions as a guide only.
Ametrine and Ama-Quartz are two of the lesser know varieties of quartz. Being quartz they are composed of silicon dioxide. Quartz has a hardness of 7, very tough cleavage, and a mid range refractive index. These properties make Ametrine and Ama-Quartz very durable and useable in rings, pendants, bracelets, and earrings for everyday wear. Ametrine occurs naturally and is the combination of amethyst and citrine in the same crystal. Ama-Quartz has been named by us and is the naturally occurring combination of amethyst and clear quartz in the same crystal. Our ametrine comes from Bolivia and the ama-quartz comes from Africa.
Tanzanite is a variety of Zoisite. This is a basic calcium aluminum silicate. The majority of the crystals are trichroic consisting of the three colors of blue, purple, and orange. By careful heat treating the crystal, the orange is changed to match the dominate color of blue. The best grade of Tanzanite resembles the color of fine blue sapphire. This gemstone has a hardness of 6 to 61/2 with one perfect cleavage. This means that it will not wear well in rings. It is better suited for pendants, pins, and earrings.
Topaz is a basic aluminum fluo-silicate. It has a hardness of 8 with a very perfect cleavage. This means that care should be taken if it is put into a ring. A casual blow to a cut topaz could cause it to split. Topaz occurs in a wide variety of colors, but it is now well known for the blue. The blue color is achieved through irradiation with gamma rays and heat. The more natural colors are Golden topaz (yellow to yellow-orange), Imperial topaz ( red orange to pink, with the pink often the result of heat treatment), and Colorless Topaz (colorless to light tan). Topaz occurs in many localities throughout the world.
Peridot is a magnesium iron silicate with a hardness of 61/2 to 7. It has a color range of green, yellow-green, brownish, and orange. This gemstone can be worn in a pendant, pin, or earrings. Care should be taken when worn in a ring due to its softer nature. Common inclusions that occur with this gemstone are black spinel and chromite crystals, veils, circular cleavage cracks commonly known as lily pads, glass blobs, mica flakes, diopside, and negative crystals. Peridot can be found world wide. Recent major producers are the United States (Arizona), Pakistan and China.
Beryl is a highly variable mineral. It has a hardness of 71/2-8 which makes it an ideal stone for jewelry. Variety of this family begins with the best known, Emerald in the bluish-green colors, then Aquamarine, in the blue to greenish-blue (seawater color). Other members of the beryl family include Heliodor, ranging in color from golden to yellow to orange, Morganite, pink to peach color, Goshenite, is colorless, and Red beryl, is a deep rose to red color. Beryl is found worldwide with the exception of Red beryl. It is found only in Utah.
Tourmaline is the name of a group of minerals with similar atomic structures and chemical compositions. Tourmaline is a 7 to 71/2 hardness and has no cleavage. The color range of tourmaline is vast, making this an ideal jewelry stone for either men or women. The varieties of color include Achroite (colorless), Rubellite (pink to red), Indicolite (various shades of blue), Siberite (various shades of green), Watermelon (a pink center the length of the crystal, with a green skin), and Bi-color (a portion of the length of the crystal one color, the balance another
Quartz is one of the most common minerals on earth. It is composed of silicon dioxide. Quartz has a hardness of 7, very tough cleavage, and a mid range refractive index. The variety of colors available give this gemstone versatility in all types of jewelry for both men and women.Color varieties include- Amethyst (violet to purple to red-purple), Citrine, (yellow to orange), Smokey Quartz (transparent gray, brown to black), Rose Quartz (pink to light red), Ametrine (purple and yellow together), and Vermarine (green to yellowish green, the result of heat treatment of amethyst).
The Garnet Family is a group of similar minerals. They are complex silicates that have different chemical compositions with almost identical atomic structures. Garnets come in a wide range of colors: red,orange, yellow,brown, pale green, deep green, violet, purple, or colorless. Garnets are 61/2-71/2 in hardness with no cleavage. This makes them ideal for any type of jewelry.
HOME Cabochon Jewelry
Information
E-mail: gggemswcr@msn.com
http://www.galarneausgems.com
We Cut Rocks