Blue lace agate as it is known is usually banded in layers of light blue bright blue stripes and threads of brown. Red jasper turquoise onyx and lapis lazuli are in the opaque category. There are two basic copper carbonate minerals azurite and malachite. Sapphires can be a very dark blue to the point of seeming dense and blackish from a distance sometimes accompanied by a blue to dull green pleochroism which is only visible from the side in cut stones. Of the two azurite is much rarer.
To take note that a gemstone is not necessarily attached to a specific category. They may also be a strong but not too bright blue easily recognizable from a distance this being the real color. Precious or semi precious stone. A list of precious and semi precious gemstones and their treatments 6th nov 2020. The blue stone ranges in shade from sky blue to blue green.
The most common blue stone is a sapphire however the deep blue color can also be found in other gemstones such as kyanite lapis lazuli and zircon. Gemstones often have a secondary hue in addition to a primary hue. After topaz has been faceted it can take such a high polish that the stone is slippery to the touch. Assessing color and quality in blue gemstones. This blue gem is a traditional and modern birthstone for the month of december.
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A blue green semi precious opaque stone. Being a cooling stone it has a soft soothing elegance that is used to cure insomnia promote strength and healing and ensure a healthy life. Is a bright blue semi precious stone. Azurite has a very distinctive and vivid blue color often described as azure blue hence its name. Some more classification of gemstones.The study of precious and semi precious stones. Opaque blue to green stone used in jewelry. For blue gemstones common secondary hues are green and violet. Azurite azuritydrusy chalcedony. Gemologists assess color by considering hue tone and saturation.
Topaz is one of the least expensive blue gemstones and this coupled with its naturally large crystals make it possible for large topaz stones to be set in jewelry at affordable prices. Citrine moonstone smokey quartz and rose quartz are translucent gems. The most known blue green forms of. Andesine is an opaque gemstone with colors ranging from brown to a salmon pink color to orange to red. Turquoise is among the most valuable of opaque blue gemstones on account of the stone s quality and rarity.
Greenish blue semiprecious stone used in jewelry. Gemstones with a blue hue include the following. But if you re looking for something different try a violet blue color or blue green color of the stone. The violet blue stones that are most commonly known are tanzanite and iolite. Azurite is a rare gem quality variety of copper ore.
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Azurite is a rare gem quality variety of copper ore. Greenish blue semiprecious stone used in jewelry. Topaz is one of the least expensive blue gemstones and this coupled with its naturally large crystals make it possible for large topaz stones to be set in jewelry at affordable prices. The study of precious and semi precious stones. A blue green semi precious opaque stone.The violet blue stones that are most commonly known are tanzanite and iolite. The most common blue stone is a sapphire however the deep blue color can also be found in other gemstones such as kyanite lapis lazuli and zircon. To take note that a gemstone is not necessarily attached to a specific category. Blue lace agate as it is known is usually banded in layers of light blue bright blue stripes and threads of brown.
