Light Blue Stone

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Light blue stone.

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. Iolite is a transparent gemstone quality form of the mineral cordierite. This makes it a challenge for lapidaries and a risky choice for jewelry. It has a hardness of 7 to 7 5 on the mohs scale making quite suitable for jewelry wear.

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. 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. Though more common as a pale yellow stone sillimanite can have pale blue hues like a light tone aquamarine.

Although fairly hard 6 5 7 5 this material is also brittle and may cleave or fracture easily. Most dark blue specimens have been dyed. This blue crystal gets its color from heavy. The most common light blue stone material is metal.

While colorless in pure form quartz also occurs as blue stones known as dumortierite quartz. 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.