Some semi precious gemstones are not stones at all but are made of organic material like amber coral and pearl. In hindu astrology the blue stone is a birthstone for sagittarius. Fine facetable crystals are rare and collectible. Sapphire this is the richest and saturated blue stone spinel this is a translucent medium violet blue stone sodalite this is a very dark blue purple and gray stone star sapphire this is a stone that has a naturally formed blue star on top tanzanite this is a dark translucent violet blue color topaz a translucent stone from very light blue to medium blue. Blue topaz treated to get the dark blues aquamarine paler blue turquoise and blue zircon heat treated to make it blue.
Every other color including blue is called sapphire. This guide will reveal details about some of the most popular semi precious gemstones garnet peridot amethyst citrine blue topaz and turquoise. To view the treatments associated with each of these stones visit our technical information on gemstones page. Ruby sapphire these precious gemstones are the same mineral corundum. Other blue stones which are considered either precious gems or are too light in blue color to match the ocean view from space are.
All other gemstones are considered as being semi precious stones. Because these gemstones typically have more sources they are a good choice for larger clean eye stones and come in a rainbow of colors. Named for blue hues that can resemble sapphire sapphirine can have light to dark blue to blue green hues. But since it is made of natural materials and has the degree of hardness seven the gold flow is still one of the semi precious stones. Azurite is a rare gem quality variety of copper ore.
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These are old terms and not necessarily true these days. When found as red corundum it is called ruby. The value given to semi precious gemstones depend largely on color availably and quality. Ruby is the birthstone for july and sapphire is the birthstone for september. Of the two azurite is much rarer.The blue goldstone is not a grown stone in the traditional sense. Sodalite is a blue gemstone closely related to lapis lazuli and is in fact a component mineral thereof. A wide variety of dark blue semi precious stone options are available to you such as crystal gemstone. This blue semi precious stone was first discovered in greenland in 1811 and was named after its sodium content. Azurite has a very distinctive and vivid blue color often described as azure blue hence its name.
List of precious and semi precious stones. And its reddish brown color with countless golden glittering inclusions in it makes it a very popular gemstone. Some transparent specimens occur in sri lanka but other locales usually don t produce high quality blue gemstones. List of precious and semi precious stones. The blue goldstone is not a grown stone in the traditional sense.
Some transparent specimens occur in sri lanka but other locales usually don t produce high quality blue gemstones. These are old terms and not necessarily true these days. All other gemstones are considered as being semi precious stones. Every other color including blue is called sapphire. Some semi precious gemstones are not stones at all but are made of organic material like amber coral and pearl.
