Lapis Lazuli

Lapis Lazuli

Lapis Lazuli aka zaba tare da uniform launi da kuma ba fasa, lafiya irin zane da kuma ba da zinariya taurari, bi da wani farar zinariya, wanda ke nufin cewa zinariya taurãri ko'ina rarraba. Idan abun ciki na pyrite ne low, babu zinariya taurari za su bayyana a kan surface kuma ba zai shafi ingancin. Duk da haka, idan launi na Venus ne baki ko duhu, ko idan calcite abun ciki shi ne da yawa ta samar da wani babban yanki na farin spots a farfajiya, da darajar za a ƙwarai rage.

Lapis lazuli, turkos, da zircon ne guda birthstones a watan Disamba.

Lapis lazuli yawanci yana da biyu ma'ana.

Da farko, shi yana nufin alkaline aluminosilicate ma'adanai. Chemical dabara (Na, Ca) 7 ~ 8 (Al, Si) 12 (Ya, S) 24 [SO4, Cl2 (OH) 2]. A sodium ne sau da yawa jera maye gurbinsu da potassium, da kuma sulfur part aka maye gurbinsu da sulfate, chlorine da kuma selenium. Tun da bincike a kan ma'adinai lapis lazuli ya ba tukuna aka sosai karatu, akwai wasu hanyoyi daban-daban na rubuta ta sinadaran dabara, misali: (NaCa) 8 (AlSi04) 6 (SO4, d, S) 2, a wannan lokacin da ma'adinai da aka equiaxed crystal tsarin, refraction Rate N = 1.50, duhu blue, blue-Violet, sama blue, haske blue ko kore-blue.

Na biyu, shi tana nufin wani dutse mamaye lapis lazuli ma'adanai, a cryptocrystalline tara dauke da karamin adadin impurities kamar pyrite da calcite. A tsakiyan nonon ne ba ci gaba, da karaya ne m, da kuma zane ne hasken blue. Emits orange tabo haske a karkashin dogon-hare ultraviolet da haske sakawa a iska mai guba, da fari haske a karkashin short-hare ultraviolet da haske sakawa a iska mai guba. Light ja karkashin launi tace. Glass luster zuwa waxy luster, Refractive index N = 1,502 ~ 1,505, dangi yawa 2.7 ~ 2.9. Lapis lazuli sannu a hankali ta saki hydrogen sulfide a lõkacin da ta ci karo da hydrochloric acid.

Identification hanyar

A granular tsarin halitta lapis lazuli za a iya gani a karkashin wata girman siffar gilashi, kuma sau da yawa ya ƙunshi pyrite spots da fari calcite clumps. [2] 

Lapis lazuli ne kullum blue, da kuma ta launi ne m da abun ciki na lapis lazuli ma'adanai. Good lapis lazuli ne duhu blue, kuma m, tare da ba fasa, lafiya irin zane, da kuma wani calcite impurities. Yana za a iya sanya a cikin kayan ado da sauransu. Idan akwai fari dutse zaren, ko farin spots lauye, da launi yawa, tsarkakuwa, kuma uniformity za a rage, da kuma ingancin kayan ado za a rage.

A irin zane na lapis lazuli ya zama m, m, ba tare da fasa, da kuma pyrite ya kamata a ko'ina rarraba kamar glittering taurari, wanda shi ne saman-sa. A gida rarraba pyrite a guda zai shafi irin zane na lapis lazuli Jade, kuma mafi fili fasa, da runtse da ingancin matakin.

Evaluation rating

A ingancin kimantawa lapis lazuli za a iya dogara ne a kan launi, tsabta, nauyi (lumpness) da kuma sauran al'amurran. don

launi

A launi na lapis lazuli ne m da abun ciki na lapis lazuli ma'adinai. Idan ya ƙunshi mafi lapis lazuli ma'adanai, da launi mai kyau, da kuma mataimakin versa. Saboda lapis lazuli ma'adinai ne blue, da lapis lazuli Jade ne talakawan. Shi ne kuma blue, da kuma mafi kyau blue sautin ne da karfi, da tsarki da kuma uniform. 

Idan launi ne lauye da fari dutse Lines ko fari spots, da yawa, ga tsarkakuwa, kuma uniformity na launi zai iya rage, da kuma ingancin za a rage.