
vaalantain

vaalantainait ennathu sb2o3 enna soothravaakyamulla oru antimony ooksaid daathuvaanu. vaalantainait orthorhombic sisttathil christalise cheiyunnu, saadhaaranayaayi euhedral christalukalude vikirana klasttarukalaayo naarukalulla pindangalaayo roopappedunnu. idaykkide manjayum chuvappum nirangalodukoodiya niramillaathathum vellayumaaya niramaan ithinu. ithinu 2.5 muthal 3 vare moss kaadinyavum 5.76 enna prathyeka guruthwaakarshanavumundu. stibnaittinteyum mattu antimony daathukkaludeyum kalavastha ulppannamaayi vaalantainait sambhavikkunnu. isometric antimony ooksaid senaarmondaittumaayi ithu dviroopamaanu.
charitraparamaaya vivarangal.
19-aamm noottaandinte madhyathil aalkkemiyekkurichulla ezhuthukaaranaaya basilius vaalantinasinte bahumaanaartham peritta oru daathuvaanu vaalantainait. antimaniyeyum athinte samyukthangaleyum kurichu vishadamaaya vivaranam nalkunna aadya pusthakatthinte rachayithaavaanennu karuthappedunnathu addehamaanu. dhii antimony flover' ennu vilikkappettirunna antimony trioxidinte synthetic thayyarakkalumaayi vaalantinasinu parichayamundaayirunnuvennum pusthakatthinte ulladakkathil ninnu vyakthamaan.
1845ll fraansile less chalches khaniyile alamandu, aiser, ovargne-roonn-alps ennividangalile oru sambhavathekkurichaan vaalantainait aadyamaayi vivarichathu. bohemiayile prebram pradeshathu ithu sambhavikkunnathinte aadya vivaranam ekadesham athe samayathaan varunnath. eee prathyeka pradesham oru kaalath eee dhaatu ettavum mikacha paralukal nirmmichu. avide kandethiya ettavum valia paralukalkk 3 centimeter vare alavundu. sambannamaaya dresukalaal tharamthiricha avaa galenayodoppam sira arakalil vikasichu.
sambhavam.
nikshepangalude mukal bhaagangalil ooksideshaniloode dvitheeya dhaatuvaayi roopappedunna hydrothermal antimony-bairing sirakalude oru kalavastha ulppannamaanu vaalantainait. stibnaitt, native antimony, stibikonaitt, serventite, kermesite, tetrahedrite ennivayumaayi bandhappettathaan ithu.
aljeeriyayile konstaantain pravisyayil vaalantainitinte sambannamaaya nikshepam kandethiyittundu. 83 sathamaanam aantimaaniyumaayi ayiru khananam cheiyunna eaka nikshepamaanithu. matellaa sthalangalilum ithu valare kuranja alavil sambhavikkunnu.