Some gems surface in light appeared six, four or cross radiation starlight, some gem also has 32 starlight. The starlight gem with a ruby, sapphire, garnet, pyroxene, etc. Because in the fine inclusions gems, consider properly arrange certain direction. Will make such as ruby, sapphire pandora beads 2010 issued six lines or ten second-line starlight. Some gems due to internal composition distribution is uneven and forming different degree of ribbon, consider ok also will have a "false starlight". A star shaped pokwong gem higher value of some, are precious pandora jewelry treasures.
4. The cat 's-eye shape pokwong
Refers to half garden element face gem surface appear a middle of pointy ends with wide is the cat's eye shine. Pokwong Take light direction on the surface of the different, gem "cat's pandora braelet eye" changed also, real cat's eye gem is green gems. But with the cat's eye pokwong effects, such as the moonlight gem many stone, and andalusite, garnet, through pyroxene, pear-shaped, sapphire, olivine, green shade stone, Tanzania, amounting to about twenty pandora beads and charms stone etc.
(4) transparency
Here refers to the degree of gems available through visible light, generally speaking gem transparency, the higher the precious gems, transparency directly related to reflect ability strong pandora necklace and the weak, the stronger the more transparent, reflected light ability gem shining brilliantly, reflective refraction strongly make bright flash, five CaiBan gems lanshi let a person fondle admiringly. Diamond, red sapphirine crystal stones etc, emerald direct to its value the transparency pandora of the more closely related, the more valuable transparent. Transparency and gem colour, bright and luster closely, accordingly, people will transparency is divided into:
Transparent - 1 cm above the light passing through the thickness of the gem pieces or chip can pandora sale clearly seeing the underside of images.
Translucent - 1 cm above the light passing through the thickness of the gem pieces or chip when underside image unclear.
One tiny transparent 1 cm above the light passing through the thickness of the gem fragments or pandora chain uk sheets fuzzy but visible when the underside image the rough outline.Opaque - light reflex, all absorbed or completely invisible to the bottom image.
Nature more for transparent or translucent gems. Transparency and gem internal pure, how many impurities, package bodies or crack degree are closely related. Transparent or translucent stones pandora beads processing into various facets of stones, micro through or not transparent gem many processed into element face gems. Gem transparent, its high refractive index make it more bright and shining.
(5) textureHere refers to the stand or fall of gem crystal structure level. Perfect crystalline good grain big, no cleavage and crack and less impurities or package bodies, crystal growth is not very obvious, line uniform color, such gems texture is pretty good. Emerald appear easily continous pandora rings products lines and inclusions, quality of a material is often bad, the serious influence of its value. But if texture, color is gorgeous emerald price could improve dozens of times or hundreds of times. Anyhow, pretty colors, burnish with special pokwong, strong of quality of a material excellent, good diaphaneity is the most precious gems.Second, resistant to long