Blue Spinel Vs Sapphire
This has to some degree closed the spinel vs.
Blue spinel vs sapphire. Spinel has been making a name for itself over the last couple of decades and demand for fine stones well exceeds supply. Spinel pg 2 red spinel pink spinel other colors. Other varieties are more common and less sought after. In the deeper blue colors there are only softer stones such as kyanite and iolite.
Blue topaz is the result of irradiation treatment and tanzanite is often heated to enhance its blue color. Sapphire ruby. Tourmaline pg 2 black orange blue green tourmalines. Discovered accidentally when scientists were experimenting to try and produce a flame fusion blue synthetic sapphire spinel s great advantage is that it can be made to reproduce almost all colors except purple the blue synthetic spinel sapphire imitant is much more genuine looking than a synthetic blue spinels imitating synthetic sapphires.
This dissolved titanium pairs with iron to increase the amount of blue color in the stone. Spinel occurs in a wide variety of colors. Blue spinel hues range from violet blue through very slightly greenish blue. Blue exemplars are the second rarest spinel gems.
The bright reds and deep blues are spectacular specimens. With modern gemological tools we can easily distinguish between blue spinel and blue sapphire. Man made spinel is used extensively. Tourmalines pg 4 paraiba tourmalines.
It is easy to understand how early gem traders confused spinel with ruby and sapphire for over 1000 years. There are few gems that occur naturally in blue. A case in point is the internal diffusion seen in a heat treated sapphire induced as the titanium from rutile silk inclusions was dissolved into the crystal lattice of the host sapphire at high temperatures. There is no telling how many spinels have actually been sold as sapphire.
Garnet pg 2 understanding garnets. Nevertheless spinel s price even in those cases is still lower than the price of sapphire and ruby. Its cheaper than sapphire and is very light. Color is an important factor that defines spinel s price red spinel is rarer than other varieties and also more expensive.
Red and blue spinel. Spinel pg 3 synthetic spinel. Blue sapphire is the most famous. In fact spinel is in great demand among gemologists and gem connoisseurs.
Blue spinel is a rather special stone. Blue spinel is a gem made of a compund of iron and sapphire. Tourmalines pg 3 pink red yellow and other colors.