Fire Blue Spinel Vs Sapphire

Its cheaper than sapphire and is very light.

Fire blue spinel vs sapphire. The chelsea filter is a tool that shows traces of chromium and cobalt. Blue spinel is a rather special stone. It is easy to understand how early gem traders confused spinel with ruby and sapphire for over 1000 years. 0 02 heat resistance up to.

Blue spinel vs sapphire. The bright reds and deep blues are spectacular specimens. Blue spinel is a gem made of a compund of iron and sapphire. In the deeper blue colors there are only softer stones such as kyanite and iolite.

Blue spinel reaction under chelsea filter. In fact spinel is in great demand among gemologists and gem connoisseurs. Blue spinel hues range from violet blue through very slightly greenish blue. With modern gemological tools we can easily.

Spinel has been making a name for itself over the last couple of decades and demand for fine stones well exceeds supply. Blue topaz is the result of irradiation treatment and tanzanite is often heated to enhance its blue color. Spinel occurs in a wide variety of colors. 1 100 c 2 012 f setting.

Common crystal forms are octahedra usually twinned it has an imperfect octahedral cleavage and a conchoidal fracture its hardness is 8 its specific gravity is 3 5 4 1 and it is transparent to opaque with a vitreous to dull luster. The history of sapph. Blue sapphire comparison natural v. Chatham lab grown sapphire with its blues so saturated and velvety as gia puts it you ll be stepping in rhythm and swimming in deep in no time.

Spinel is a gemstone that can be red blue purple rose black or brown in color or also colorless. Product details fire blue spinel rough. Blue sapphire is the most famous. Color of the skies color of the oceans.

Its red and blue varieties are sometimes confused with ruby or sapphire two of the gemstone variations of the mineral corundum because of their striking visual resemblance. Spinel crystallizes in the isometric system. Spinel that does not contain cobalt will not turn red. When a natural cobalt blue spinel is viewed through the chelsea filter it appears a bright red color.

It may be colorless but is usually various shades of pink rose red blue green yellow brown black or. For that reason spinel had received insufficient recognition in the. This has to some degree closed the spinel vs.