Siit saate teada, mis on pärlid ja kuidas need tekivad

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Kategooriad: Vääriskivid

Autor: OmniaOro

Selles artiklis selgitame pärlite loomise loomulikku protsessi. Ja kuidas saate aru, kas pärl on tõeline või võlts.

Peaksite teadma, et looduslikel pärlitel on kaks peamist kategooriat:

looduslikud soolase vee pärlid, mis on väga haruldased ja kindlasti kõige väärtuslikumad, sest need tekivad looduslikult, ilma inimese käteta.

Tegelikult on tänapäeval turul olevaid looduslikke mereveepärleid väga vähe ( umbes 1% ) ja karpide kalurid avastavad need juhuslikult.

ja magevees kasvatatud pärlid (mida kasutatakse ehetes kõige sagedamini).

Kuidas need moodustuvad

Looduslikud pärlid on oma olemuselt orgaanilised ja sünnivad pärlmolluski (austri) sees, mis kaitseks pehmetesse kudedesse tungiva võõrkeha sissepääsu eest aktiveerib spontaanse immuunprotsessi, mis katab väliskeha ainega nimega "conchiolina". " , mis hakkab tootma õhukesi kontsentrilisi pärlmutrist kihte, mis põhjustavad pärli kihistumist.

On tõestatud, et austril tekib päevas 3 või 4 kihti koort, seega on huvitav teada, et iga kasvatusaasta kohta kasvab pärli kiht 0,3 mm.

Nii et alles mõne aasta pärast saate imetleda erakordset tulemust: imelist looduslikku pärlit.

Oluline on teada, et tuhandete austriliikide hulgast peetakse tõelisteks pärlaustriteks vaid üksikuid liike.

Pärli hindamise elemendid

  • Mõõtmed
  • Kuju ja homogeensus
  • Värv
  • Pinna välimus
  • Orient

Dimensioon

Suurus on esimene element, mille põhjal pärli hinnata, "pidage meeles, et muud tegurid on võrdsed, mida suurem pärl, seda suurem on selle väärtus.

Pärlite mõõtühikuks on millimeeter (mm) ja selle läbimõõtu saab hõlpsasti mõõta tuhandiku nihikuga.

Kuju

Allpool on kõik olemasolevad pärli suurused:

  • Sfääriline
  • Ovaalne
  • Pool pärlit
  • Ovaalne
  • Nupp
  • Tilgakujuline
  • Pirnikujuline
  • Rõngastatud
  • Mestinud
  • Ummutatud
  • Riisitera
  • Rist
  • Fantaasia
  • Barokk
  • Poolbarokk

Värv

Pärlitega on kaasas lõputu värvi- ja toonikombinatsioon ning seetõttu on võimatu luua tõelisi kategooriaid.

Allpool on loetletud kuus põhivärvi: valge , roosa , kreem , kollane, hall ja must.

Halle ja musti pärleid leidub tavaliselt piirkondades, kus liiv on tume. Ja neid toodab teatud tüüpi suur pärlauster, mida nimetatakse "must huuleliseks", mis pärineb "margaritiferous" perekonnast.

Kuigi kõige levinumad toonid ulatuvad roosast ja roosakasrohelisest.

Pinna välimus

Kuigi pärlid on alati "orgaaniline materjal" ja seega looduslikud, ei ole neil kunagi täiesti sile ja homogeenne pind.

Seetõttu on pärli otsese valguse käes uurides kindlasti märgata reljeefis triipe või väikseid mullikesi, need on rahustavad elemendid, mis tugevdavad hüpoteesi, et pärl on tõeline ja seega autentne.

TÄHELEPANU Mida täiuslikum on pärli pind, seda väärtuslikum on pärl.

Pärli idamaa

Pärli orientatsioon on optiliste elementide kogum (valguse dispersioon, murdumine, peegeldus, interferents ja difusioon), mida märgatakse hajutatud valge valguse kasutamisega, kui vaadelda pärlit ühtlasel valgel või hallil taustal.

Kui märkate pärli vaatlemisel "liikuvaid" värve, siis jälgite pärli orientatsiooni. Ainult asjatundlik tehnik on võimeline seda hindama:

Suurepärane – hea – õiglane – kehv

Kuidas võltspärli ära tunda

Selle väga lihtsa meetodi abil saate kiiresti tuvastada, kas pärl on autentne või võlts .

Katse seisneb pärli pinna kriimustamises väikese viili või väikese noa teraga (kui sellel on auk, siis on parem augu lähedal, nii et pärast kaelakee sisse torkamist ei näe te tehtud kriimustusi). kohe aru saada, kas see on kaetud värvi või sarnaste toodetega.

Sel juhul märkate kohe värvi pragunemist ja katte all võltspärli (tavaliselt läbipaistvast plastikust).

Nii saate kohe aru, kas tegemist on autentse või võltspärliga . Sest kui pärl on naturaalne, siis seda kratsides märkad, et pärli pind ketendub (efekt on identne seepia luu kratsimisel).

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