Lub inorganic Cheebtsam ntawm cov hlaws tsuas yog calcium calciumate thiab magnesium carbonate, Pearls suav rau ntau tshaj 91%, tom qab ntawd los ntawm silicon oxide, calcium phosphate, Pearls Al2O3 thiab Fe2O3. Cov teeb meem organic hauv cov hlaws muaj cov tshuaj aspartic acid, Pearls threonine, serine, glutamic acid, glycine, alanine, cystine, valine, methionine, isoleucine, leucine, Pearls tyrosine, benzene 17 hom amino acids xws li alanine, histidine, arginine thiab proline. Ntxiv rau, Pearls nws tseem muaj ntau dua 30 kab kawm, taurine, nplua nuj vitamins thiab peptides.
Cov hlaws muaj ntau yam, suav nrog puag ncig, pear-puab, qe-puab, teardrop-puab, Pearls khawm zoo li tus, thiab random, nrog puag ncig yog qhov zoo tshaj plaws. Heterogeneous lub cev. Cov xim muaj xim dawb, liab, Pearls lub teeb daj, lub teeb ntsuab, lub teeb xiav, xim av, lilac, xim dub, thiab lwm yam, feem ntau yog xim dawb. Dawb streaks. Nws muaj cov hlaws raug lus, hlaws muag kom zoo nkauj thiab zaj sawv xim. Pob tshab rau cov translucent. Qhov ntsuas lub ntsiab lus 1.530-1.686, Pearls birefringence: kev suav tsis suav nrog. Tsis muaj dispersion. Hardness 2.5-4.5. Cov ntaws ntawm cov dej tsis muaj roj nyob hauv ntuj feem ntau yog 2.66-2.78g / cm3, Cov hlaws uas nws txawv nyob ntawm qhov chaw keeb kwm. Tsis muaj cleavage.Pearls Zoo toughness. Hauv qab nthwv dej ultraviolet lub teeb, lub hlaws dawb yog lub teeb xiav rau lub teeb daj; Pearls daj thiab kub pearls yog xim daj-ntsuab, lub teeb ntsuab rau xim av tsaus; Cov hlaws dub feem ntau yog xim liab mus rau txiv kab ntxwv-liab; Cov hlaws muaj lub teeb daj thiab dawb fluorescence hauv duab xoo. Ua npuas ncauj nyob rau hauv cov ntaub ntawv ntawm hydrochloric acid.