tombeads

1st, the blue valuable color is its value target. An unusual deep color blue valuable possibly only sells a 100 HK dollars card, but good Che Ju blue treasure, then sells each card several thousand HK dollars.Morocco Agate Beads In the US and Europe, the people are partial compare the deep color the blue treasure. In Hong Kong, the consumer likes the medium depth the blue color, this color department's blue valuable selling price is high. Will be blue places remote valuable arm, observes carefully its color is the blue color or the black. If it is the blue color, although then your choice is also not far. 2, look at the gem in natural sunlight and under the man-made photo source. The gem will look like under the glare will compare the tint, but will be black under the common sunlight. 3, have a look at the color whether even consistent, the fissure will affect the gem artistic and the durable degree. If the feather figure extends to the stone surface, the hit suddenly (e.g. when will rub house sparrow) make the gem breakage. 4, do not forget that observes the gem cutting and the proportion. 5, are the same with the ruby, the careful replica and several may seem real sham. the sapphire and the similar mineral may perform the correct difference through the respective mineral crystal characteristic. The valuable stone step benitoite only then an American habitat, the output are few, although the color and the sapphire are closer, but its degree of hardness is small, touches the degree of hardness is only 6-6.5, therefore only degree of hardness then with sapphire difference;Wholesale Beads The natural sapphire has the double refraction, but the spinel is a simple refraction, if in the blue color gem can present the red flash, then may conclude this blue color gem for the spinel or the black curtain stone; Sapphire high degree of hardness, the high density, the high refractive index may with the tourmaline, the cordierite, the black curtain stone distinguish.

The sapphire ingredient is the aluminum oxide, because of (Ti4+) or the iron (Fe2+) assumes the blue color including the trace element titanium. Is the trigonal system. Crystal shape Chang Chengtong the shape, short columnar, plate-type and so on, the geometric solid many are granular or compact massive.Mexican Agate Beads Transparently to translucent, glassy luster. the index of refraction 1.76-1.77, the double refraction rate 0.008, the dichroism is strong. Heterogeneous body. Sometimes has the special optical effect - star light effect. Degree of hardness is 9, density 3.95-4.1 grams/cubic centimeters. Does not have the cleavage, cracks the principle growth. Under certain condition, may produce beautifully six shoots the star light, is called " the star light sapphire ". [4] the sapphire may divide into the blue color sapphire and the colorful color (non-blue color) the sapphire. The color produces " the cornflower take India to be blue best " as. It is said the sapphire can protect king and the crowned head is exempt from the injury, has " the king stone " the name. The international gem decides as the sapphire " in September to be born the stone ", the symbolic affection, is loyal and is firm. The sapphire is world one of five big precious upscale gems. sapphire and similar blue color gem, synthesis blue color gem difference. Has the blue color spinel, the blue color alexandrite, the blue zircon, the benitoite, the kyanite, the cordierite with its similar blue color gem and so on. Has the synthesis sapphire, the synthesis spinel with its similar synthetic gem, to contain the cobalt glass. Blue color spinel: The color is homogeneous, the microstrip gray, the crystal assumes the octahedron body, the isotropic body, does not have the dichroism. Blue color alexandrite: Color for belt green blue color, crystal for duplicate tripartite columnar, degree of hardness, the density, the index of refraction compare the sapphire to be low, the dichroism is extremely obvious, the double refraction rate is big. Blue zircon: After the heating processing zircon,Cheap Beads the color is bright, chromatic dispersion, the double refraction rate is high. Synthesis sapphire: The color is homogeneous, pure, the inclusion is scarce, has the round air bubble, isotropic body.

The sapphire (Sapphire) and the ruby is the sisters gem mutually, they belong to the corundum mineral, is besides the diamond on the Earth the hardest natural mineral, the basic chemical composition is the aluminum oxide. Besides star photoeffect, only then translucent or transparent, and the color bright corundum can be called as the gem. Red and the chromic element's corundum assumes the red tone, therefore is called the ruby;Madagascar Agate Beads The blue color sapphire (Sapphire) is because included the micro titanium and the hard element. In fact, except the red corundum gem, other all tone's corundum is called the sapphire in the trade (Sapphire). Therefore, the sapphire (Sapphire) is not only refers to the blue color the corundum gem, it besides has the complete blue color series, but also has is similar to fireworks setting sun yellow, pink, orange orange color and purple and so on, these colored department's sapphires (Sapphire) is called as by the series the colored sapphire (Sapphire).

The sapphire English name is Sapphire, stems from Latin Spphins, the meaning is the blue color. Belongs to the corundum race mineral, trigonal system. The gem is called the ruby outside assorted valuable stone step corundum the sapphire. in the corundum because of includes the iron (Fe) and the titanium (Ti) and so on trace element, but presents blue, sky blue,Line Agate Beads  blue and so on colors, take bright sky blue as best. The natural sapphire may divide into the blue color sapphire and the colorful color (non-blue color) the sapphire. In the gem market and has the dark blue the purple sapphire to be called “the masculine sapphire”, the tinted sapphire is called “the feminine sapphire”. The international gem decides as the sapphire “in September birthday stone”, the symbol is loyal and is firm. It is said the sapphire can protect the national territory and the king is exempt from the injury, has “the king stone” the name. in the world the biggest star light sapphire is “star of the Indian” (Star of India), weight 563 carats. Its six shoot the star light to be perfect, moreover the slight defect are extremely few, although the luster is not very gorgeous, but also truly is rarely found in the world the treasure. The gem back is also presenting the nearly same star light. the star light sapphire also calls the star-sapphire, most is not transparently to translucent. In the gem silk silk inclusion (tall and slender acicular rutile crystal) is produces six shoots the star light the reason. The star light sapphire is called because of its gorgeous star light color “stone of the destiny”, three bunches of star light represent loyal, the hope and the universal love. Our country excavates one kind of rare natural sapphire in the Xinjiang Tianshan area to have the color deterioration effect, assumes the purple under the sunlight, assumes the yellow under the light, is the natural sapphire the new variety, is also one of sapphire best qualities.Wholesale Beads  Northeast Burmese Mandler wipes the valley (Mogok) the nearby regions is the high quality sapphire main production area. Our country Shandong Province Changle area's sapphire occupies the domestic first place in the reserves and the quality aspect. the sapphire is the color beautiful, the transparent valuable stone step corundum Spain name is Zafiro. Is also the American country stone.