Qhov ntawd yog lwm lo lus nug zoo uas kov rau peb cais cov ntaub ntawv. Cov lus teb tsis ncaj, tab sis ntawm no yog qhov tawg:
Tsis yog, marble tsis yog kab ke txwv raws li ib semi - pob zeb muaj nuj nqis.Nws yog feem ntau cais raws li a lub pobzeb, tshwj xeeb aMetamorphic Pob Zeb.
Txawm li cas los xij, txoj kab yuav tau txais kev plooj ncauj, tshwj xeeb tshaj yog nyob rau qee cov ntsiab lus zoo li kev ua yeeb yam zoo nkauj thiab cov hniav nyiaj hniav kub. Cia peb qhia meej qhov sib txawv.
Vim li cas pob zeb, tsis yog gemstone
1. Geological Txhais:
- Lub pobzebmuaj cov mlom ntawm ib lossis ntau duacov zaub movCov. Lawv yog cov loj, cov teeb meem.
- Cov zaub movyog ib txwm tshwm sim, inorganic cov khib nrog cov tshuaj sib xyaw tshwj xeeb thiab cov qauv crystalline (piv txwv li, Qhab, Pob Zeb Diamond).
- Lub pov haummuaj tsawg thiab zoo nkaujcov zaub mov(lossis qee zaum cov khoom siv organic zoo li Amber) uas tau txiav thiab polished rau cov hniav nyiaj hniav kub.
- Zebyog lub pob zeb ua tiav feem ntau ntawm cov ntxhiaqho muajCov. Nws tsis yog ib qho ntxhia.
2. Durabe:
- Semi - Cov pob zeb muaj nuj nqis siv hauv cov hniav nyiaj hniav kub (zoo li cov khoom siv tsis zoo, lossis cov zaub mov tsis zoo rau txhua hnub) ntawm lub hardness ntawm hardness).
- Marble yog qhov muag heev(Nyob ib ncig ntawm 3 ntawm Mohs nplai). Nws yog qhov yooj yim khawb thiab yog qhov ua rau etching los ntawm cov kua qaub (zoo li kua txiv txiv qaub lossis vinegar). Qhov no ua rau nws impractical rau siv nyob rau hauv ib ncig los yog saws tes uas pom ntau qhov kev puas tsuaj.
Qhov muag plooj: Thaum yog kho marble kho li "semi-} precious"?
Thaum geologist yuav ua kom khov kho qhov chaw teeb meem marble hauv "Pob zeb" Qeb, Txuj Ci, thiab cov neeg ua haujlwm tau siv lub sijhawm ntau dua hauv cov ntsiab lus no:
- Duab puab thiab carving:Rau ntau txhiab xyoo, siab - Zoo, ntshiab-dawb marble marrara lossis statuange tau muaj nuj nqis heev li ib qho gemstone rau kev tsim kom muaj kev ua tiav kev ua haujlwm ntawm kev kos duab. Hauv qhov kev txiav txim no, nws yog aCov Khoom Muaj Nqi.
- Hniav khoom thiab Inlay:Marble feem ntau siv nrog Semi - cov pob zeb muaj nuj nqis hauv cov duab kos duab zoo nkauj. Koj yuav pom Marble siv rau cov thawv, cov teeb meem me me, thiab hauv intricatepietra dura(Hardstone Inlay) ua haujlwm, uas nws txiav thiab polished nrog pob zeb zoo li lapis lazuli, malachite, thiab jasper.
- "Gemstone" hlaws dai thiab cabochons:Tsis tshua muaj, tshwj xeeb yog zoo nkauj thiab yeeb yuj marble (piv txwv li, muaj ntau yam ntsuab lossis cov khoom siv liab lossis cov pob tw lossis pendants. Hauv kev siv no, nws ua haujlwmnyiamIb semi {{0- pob zeb muaj nuj nqis, txawm tias nws tsis tau raws li cov txheej txheem technical.
Qhov kev zam: Dab tsiTxogOnyx?
Nov yog qhov uas nws nkag siab tsis meej! Lo lus "Onyx" yog siv rau ob yam khoom sib txawv:
- Sio₂ Onyx:Banded ntau yam ntawmchalcedony(ib daim ntawv ntawm quartz). Qhov no yog qhov tseeb semi - pob zeb zoo nkauj, tawv thiab ruaj khov txaus rau cov hniav nyiaj hniav kub.
- Calcite Onyx (lossis Mev Onyx):Banded, feem ntau translucent daim ntawv ntawmqho muaj{{0- cov ntxhia uas ua rau marble. Geologically, no calcite onyx yog qhov tseeb adensely crystallized daim ntawv ntawm marble lossis travertineCov. Yog li, thaum koj pom zoo nkauj ntsuab lossis txiv kab ntxwv "onyx" phau ntawv qhia lossis teeb meem, uas cov khoom siv tau sib luag ntawm marble.
Lub ntsiab
| Tus yam ntxwv | Semi - pob zeb zoo nkauj (piv txwv li, amethyst) | Zeb |
|---|---|---|
| Kev sib faib | A Khoom ntawm av(lossis ntau yam ntawm ib qho) | A Lub pobzeb(agregate ntawm cov ntxhia) |
| Hardness (MoHS) | Feem ntau 5.5 thiab saum toj no | Mos muag heev (ncig 3) |
| Thawj siv | Tus kws muag kub | Duab puab, architecture, countertops |
| Tus nqi hauv paus | Rarity, xim, meej | Xim, qauv, tseem ceeb tseem ceeb |
Xaus:Thaum Marble yog ib qho muaj txiaj ntsig zoo heev thiab cov khoom siv ntuj zoo nkauj, nws yog qhov kev tshawb fawb tau cais ua pob zeb, tsis yog ib semi- pob zeb zoo nkauj. Nws cov muag muag thiab tsim tiv thaiv nws los ntawm kev siv los ua lub pov haum hauv cov hniav nyiaj hniav kub. Txawm li cas los xij, nws cov keeb kwm thiab cov yeeb yam muaj txiaj ntsig zoo, thiab hauv lub ntiaj teb kos duab thiab dai kom zoo, nws yog qhov tseeb suav tias yog cov khoom muaj nuj nqis.
