Nā Pāʻina male kālā Sterling me ke gula keʻokeʻo

Ua manaʻo ʻia nā paʻa mare mua loa i ka wā kahiko o ʻAigupita. Ua hāʻawi ʻia nā wahine ʻAigupita i nā ʻohe papyrus i ulana ʻia i loko o nā apo poepoe e hōʻike ana i ke aloha pau ʻole o ka wahine hoʻopalau. I ka wā kahiko o Roma, hāʻawi nā kāne i nā apo waiwai i hana ʻia mai ke kālā a i ʻole ke gula e hōʻike i ka hilinaʻi a lākou i kau ai i kā lākou wahine. I kēia lā, ʻo ke kālā a me ke gula ke koho maʻamau no nā kāʻei mare. ʻO ka hoʻomaopopo ʻana i nā pono kūʻokoʻa a me nā pōʻino o kēlā me kēia metala makamae hiki ke kōkua i ka hoʻoholo ʻana i ka mea kūpono iā ʻoe. ʻO ke kālā maʻemaʻe a me ke gula maʻemaʻe nā metala palupalu loa, i hui pū ʻia me nā metala ʻē aʻe i mea e paʻa pono ai no ka hoʻohana ʻana i nā mea nani. Hoʻopaʻakikī pinepine ʻia ke kālā ma ka hui ʻana me kahi liʻiliʻi o ke keleawe. Pono e loaʻa i nā mea nani e loaʻa ana ka lepili kālā 0.925 sterling ma kahi o 92.5-pakeneka maʻemaʻe. ʻO ke gula keʻokeʻo maoli ke gula melemele i hui pū ʻia me nā alloys keʻokeʻo e like me ka nickel, zinc a me palladium; ʻo ka hopena, ʻaʻole ia e like me ke kala. Hoʻohui pinepine ʻia ʻo Rhodium plating e hoʻomālamalama i ke ʻano o nā mea gula keʻokeʻo. Ua ʻōlelo ʻia ka maʻemaʻe gula ma ke ʻano o kāna karatage. ʻAʻole like me ke gula melemele, loaʻa ke gula keʻokeʻo a hiki i ka 21 karat; ʻoi aku ke kiʻekiʻe a he melemele ke gula. ʻO ke gula keʻokeʻo i kapa ʻia ʻo 18k he 75-pakeneka maʻemaʻe, a ʻo 14k gula keʻokeʻo he 58.5-pakeneka maʻemaʻe. Loaʻa ke gula keʻokeʻo i kekahi manawa ma 10k, ʻo ia ka 41.7-pakeneka maʻemaʻe. ʻO PriceSilver kekahi o nā metala kūʻai nui loa, ʻoiai ke ʻike pinepine ʻia ke gula keʻokeʻo ma ke ʻano he kumu kūʻai haʻahaʻa i ka platinum. Pono e hoʻololi ʻia nā kumukūʻai kālā a me ke gula e like me nā kūlana mākeke o kēia manawa. ʻOiai ʻoi aku ka liʻiliʻi o ke kālā ma mua o ke gula, ʻo nā kumu ʻē aʻe e like me ka hana ʻana o ke apo, a me ka hoʻohana ʻana i nā daimana a i ʻole nā ​​pōhaku ʻē aʻe e hiki ke hoʻonui i nā kumukūʻai. Hiki i nā apo kālā lahilahi ke kulou a nalowale ko lākou ʻano, a ʻaʻole hiki ke lōʻihi no ka ʻaʻahu i kēlā me kēia lā. ʻOi aku ka lōʻihi o ke gula keʻokeʻo ma ka laulā 18K a i ʻole ka haʻahaʻa ma mua o ke gula melemele i ka karatage like, kahi e kūpono ai no ka ʻaʻahu o kēlā me kēia lā. Hiki i ka mea hoʻohana waiwai ke hoʻoponopono i ka hapa nui o nā ʻōpala a me ka hōʻino ʻana i ke kālā sterling a i ʻole ke kāʻei mare gula. Ua kaulana ʻo Wear a me CareSterling kālā no kona ʻano e oxidize a lilo i ʻeleʻele, a ʻeleʻele paha; akā me ka mālama pono a me ka hoʻomaʻemaʻe ʻana, hiki ke hoʻihoʻi ʻia ke metala i kona ʻōlinolino mua. Nui nā hale kūʻai mea kūʻai aku e hāʻawi aku i ke kālā sterling tarnish-resistant, i mālama ʻia e pale i ka oxidization. Hiki ke ʻike ʻia ke gula keʻokeʻo i ka melemele i ka pau ʻana o ka pale rhodium. ʻO ka hopena, pono e hoʻololi ʻia ka plating i kēlā me kēia manawa no ka mālama ʻana i nā mea nani. Hoʻohui pinepine ʻia ke gula keʻokeʻo me ka nickel e hoʻoulu ai i nā hopena maʻi i kekahi poʻe, akā nui nā mea kūʻai aku e lawe i ke gula i hui ʻia me nā metala hypoallergenic.