Blue Gemstones Chart
Grossularite or grossular garnet is a calcium aluminium garnet. Apatite is normally untreated but one.
Grandidierite is a rare greenish blue gemstone named after alfred grandidier.
Blue gemstones chart. Though blue is a more common gem color than red very few gems occur in a pure saturated blue. The gem was first discovered in the 1960s in the country of tanzania and that is the origin of the gem s name. Although it is a very common mineral gem quality materials are extremely rare.
Sapphire is really the only example though tanzanite sometimes comes close. It is often listed as one of the top 10 rarest gems in the world. There are also much lighter or softer blue stones with the most common of the lighter stones being topaz and aquamarine.
Buy blue apatite gemstone. If you are interested in purchasing a blue gemstone or jewelry that includes a blue gemstone but aren t sure which type of stone to buy our guide. More information about birthstones.
Each of these blue gemstones includes a chart with important characteristics as well as average prices for each gemstone how it is used in jewelry and how it s unique from other blue gemstones. Shown here is a violet blue tanzanite measuring 7 x 5 x 3 millimeters in size and weighing 1 02 carats antique facet cut. Apatite is composed of calcium phosphate the same material that makes up our teeth and bones.
The name grossular is derived from the. Other blue gems tend to be a grayish blue spinel benitoite greenish blue blue zircon apatite tourmaline gem silica or a pastel blue aquamarine topaz. 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.
This grade of tanzanite is often seen in mall and chain store jewelry. Apatite is the defining mineral for 5 on the mohs scale and it is known to occur in a wide variety of colors including a paraiba like blue green.
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