Iolite is known to exhibit pronounced pleochroism often displaying violet blue yellow gray and light blue all in the same stone depending on the angle from which it is viewed.
Light blue stone.
While colorless in pure form quartz also occurs as blue stones known as dumortierite quartz.
The most popular color.
Lapis lazuli medium rich blue color larimar this stone is a cloudy white and blue mixture in color moonstone this.
The most common light blue stone material is metal.
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Sapphire is a gem variety of the mineral corundum when corundum is reddish blue to violet blue it is known simply as sapphire corundums of any other color except red which is ruby are known as fancy sapphire.
It has a hardness of 7 to 7 5 on the mohs scale making quite suitable for jewelry wear.
Iolite is a transparent gemstone quality form of the mineral cordierite.
Most dark blue specimens have been dyed.
Although fairly hard 6 5 7 5 this material is also brittle and may cleave or fracture easily.
Though more common as a pale yellow stone sillimanite can have pale blue hues like a light tone aquamarine.
Hemimorphite very light blue stone almost white in color jadeite a very light violet blue almost white in color kyanite a dark but very rich color of stone labradorite a translucent very light blue almost clear stone.
This blue stone ranges in shade from light blue green blue to deep blue.
The color of this blue gem is photosensitive and fades in intensity with too much exposure to sunlight.
On the basis of dollars spent in the united states sapphire is the most popular blue stone and the third most popular colored stone after emerald and ruby.