Turquoise, because of " pinecone of be similar in shape, lubricious close pine is green " reason thinks renown, renown Song Shi. Hear a name with respect to sheet, what most person may think turquoise is green certainly is the costliest, be not in fact such. Small today make up the variety that says turquoise to everybody and grade to differentiate.
The sort of turquoise is various, color each different, general component fastens two kinds big for blue department and green, the cupreous ion that contains when the place inside turquoise is more, criterion incline to Yu La is lubricious; The iron ion that contains when the place inside turquoise is more, criterion incline to at green.
Turquoise 4 breed
The quality of a material of turquoise is downy and exquisite, hardness moderate, suit to carve very much, but be not all turquoise to suit to carve, the according to turquoise hardness inside course of study, its cent is 4 kinds: The face is loose (call bubble the pine again) , green pine, porcelain pine, Tie Xiansong.
Face pine calls bubble the pine again, hardness is in 4.5 the following, texture is soft, color is general weaker, hoar, it is quality most second Song Shi, value is not high. Have undesirable trader through noting model, cross candle to wait for the exterior that optimizes processing means to improve it, should do high quality green pine to sell.
Hardness is taller than face pine, it is normally between 4.5~5.5, color arrives from La Lu pea green color, can say the option that is introductory class player.
Hardness is highest, it is normally between 5.5~6, color is sterling blue or green commonly, the fracture surface that goes out because of hitting is approximate conch shape, the burnish simple sense after polishing and china very picture, because this gets a porcelain pine, it is the top grade in turquoise, have very tall collect value.
Show the surface has black limonite thready pulse to show meshy the turquoise that distributing, the limonite thready pulse on its is called " iron line " . Iron line is fine, felt is firm, qualitative hard, he Songshi forms an organic whole. But if reticulation is clay to pledge thready pulse is comprised, call slimy line turquoise, cementation of slimy line soft rock is not firm, texture is softer.
Bound of Chinese arts and crafts is mixed according to the color of turquoise, burnish, quality of a material, hardness piece spend bulk, differentiate grade
One class turquoise: Color is shown bright-coloured sky-blue, sterling, even, burnish is strong, translucence comes small transparent, the surface has glass to feel, quality of a material is compact, exquisite, tough, without iron line or other blemish, piece degree big.
2 class turquoise: Color is shown deep blue, La Lu, emerald, burnish is stronger, small transparent. Quality of a material is tough, iron line or other blemish are very few, piece in spending, wait.
3 class turquoise: Color is shown shallow blue or La Bai, shallow olive, burnish is poorer, quality of a material is more inflexible, iron thread is apparent, or the blemish such as white head, muscle, branny heart is more, piece spend size to differ.
The turquoise grade of this shows home parts a way, bright-coloured sky-blue ability is one class turquoise should some color.
Say green pine of international closely next, green pine of international classifications with home have a few distinction, the distributings according to the color of turquoise, diaphaneity and impurity feature on international differentiates turquoise grade. Nevertheless it is blue a of one class important level surely as much.
It is abroad rates only more magical is to be able to use place name indicate level, but the producing area that this place name does not represent it again, for instance 2 class green pine is in trade call America level, american soft rock and Mexican soft rock, but these names do not have producing area sense.
International is green loose cent 4 grade
(One class of 1) is tasted (Persia class)
A kind: First-rate turquoise, because extremely scarce, and common the Song Shi that produces at Persia, reason is trade call Persia level. Show strong - medium blue, color is subdued and even, without dark look or shallow blue stain, without iron line, jiang Guangze and translucence make turquoise surface has glass to feel, porosity is small, opposite density is bigger.
B kind: Color and quality of a material all are classy, surface of Dan Lusong stone has a kind of inviting cobweb figure, often be called Persia cobweb turquoise.
C kind: Color and quality of a material all are classy, dan Lusong stone contains the iron line of different amount and form, often be called turquoise of line of Persia class iron. The amount of iron line, color makes the grade change of iron line turquoise very big with distributinging meeting, and its absorbing degree is to delimit one of scalar principles.
(2) seconds (America class)
A kind: Turquoise shows shallow blue, not as bright-coloured as Persia class color. Diaphaneity is poorer than Persia class also, opaque or small transparent, burnish is not quite strong, the structure submits spot form, contain slightly shallow or slightly shady area, majority does not have iron line.
B kind: Color and quality of a material are the same as class, the surface has fine cobweb.
C kind: Color and quality of a material are the same as class, contain the iron line of different amount and form.
(3 class of 3) are tasted (Egypt class)
Present blue or glaucous, it is normally from one class in tasting, choose those who come down. It is more compact than American soft rock, dan Yan color is not congenial, so seconds of very few approach. Iron line is much coarse taste market not quite. Trade call Egypt level.
(4 class of 4) are tasted (Afghan class)
Show light color or brunet olive, iron line is more, it is low-grade article, value minimum, trade call Afghan level.
Although turquoise price lets a person love what hate again again again, no matter be tall porcelain Gao La or iron line, it has the beauty that invites a person to cannot be kept out, each Song Shi to your hand hard-earned, and dish and cherish, and admire and cherish ~
If you like turquoise, want more understanding it, should not grudge please so your attention oh
