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Corundum Gemstone: Nneɛma, Nkyerɛase, Botae & Nea Ɛkeka Ho
Corundum yɛ aboɔden abo abusua a ɛka ruby ne safire ho. Sɛ woasusuw aboɔden abo bɛn na ɛyɛ corundum ho pɛn a, ruby anaa sapphire aboɔden abo anaa subtype biara ho hia.
Corundum ho yɛ na dɛn? Aboɔden abo no abu so, nanso corundum a ɛte sɛ aboɔden abo no ho yɛ na. Ruby ne nea ɛho yɛ na sen biara, bere a safir bruu na abu so sen biara.
Safir a wɔfrɛ no corundum yɛ ɔman no aboɔden abo a ɛwɔ Montana, U.S.A., ne Queensland, Australia. Blue sapphire yɛ Sri Lanka ɔman bo, bere a Myanmar ne Thailand di corundum ruby ni sɛ wɔn ɔman bo.
Saa akwankyerɛ yi ka corundum aboɔden aboɔ nteaseɛ, ne boɔ, abakɔsɛm, ne ne su nyinaa ho asɛm.
Ɛfa Corundum Abo ho
Nea edi kan no, so corundum yɛ aboɔden abo a ɛsom bo ? Aane! Ɛyɛ nea wɔahyehyɛ no fã, efisɛ ruby ne safir yɛ aboɔden abo anan a ɛsom bo no mu abien.
Ruby yɛ July awobo a wɔde di dwuma wɔ amanne kwan so . Safire ne awobo a wɔde di dwuma wɔ amanne kwan so wɔ September mu . Safir fitaa nso yɛ April awobo .
Wɔ nsoromma mu hwɛ mu no, ruby yɛ nsoromma mu hwɛ bo ma Kokoram ne Capricorn. Blue sapphire so ba Virgo so mfaso na sapphire nyinaa so ba Taurus ne Libra so mfaso.
Sɛ wopɛ ayeforohyia afahyɛ aboɔden abo , ruby kae mfe 15, 40, 52, ne 80. Saa ara na safir de kae afe a ɛto so 5, 45, ne 75.
Wɔ afahyɛ ahorow akyi no, dɛn na wɔde corundum di dwuma?
Corundum a Wɔde Di Dwuma
Corundum adwumayɛbea titiriw a wɔde di dwuma ne nea wɔde yɛ abrasives. Esiane sɛ corundum hardness ranks at 9 on the Mohs scale , ɛho wɔ mfaso ma sandpaper , emery boards, grinding wheels, ne nnwinnade afoforo a wɔde yɛ polishing.
Corundum dodow no ara a wotu no yɛ nea ɛwɔ mfiridwuma mu nkutoo. Efi bere a wɔyɛɛ safir a wɔde ayɛ nneɛma a edi kan wɔ 1902 mu no, wɔde safir adi dwuma nso wɔ:
Windows
Satellite so nkitahodi
Nyansahu mu nnwinnade
Amansin ahorow a wɔaka abom
Corundum Nkyerɛkyerɛmu & Su ahorow
Sɛ́ aluminium oxide mineral no, corundum formula no yɛ Al2O3. Dade, chromium, vanadium, ne titanium yɛ efĩ a abu so.
Corundum taa yɛ prism ahwehwɛ a ɛte sɛ toa, ɛyɛ pyramidal abien, anaasɛ enni awiei. Sɛ ɛnte saa a, ɛyɛ granular, massive, anaasɛ ɛte sɛ abotan.
Nneɛma bi — a ɛne refractive indices, birefringence , ne density — gyina fibea no so. Sɛ nhwɛso no, safir a ɛsono ne kɔla a efi Australia no mu biara betumi anya su ahorow.
Nneɛma a ɛyɛ den sen biara a ebetumi aba ne 4.06 wɔ safir a ɛyɛ kɔkɔɔ-biribiri a efi Umba Asubɔnten Bon mu no mu. Nea ɛba fam koraa ne 3.80 wɔ Yugoslavia rubies mu.
Safir a ɛyɛ ahabammono taa nya refractive indices a ɛkorɔn sen biara, na ɛkɔ 1.779. Botae a ɛba fam koraa ne 1.757 wɔ Sri Lanka safir bruu mu.
Corundum no agyapadeɛ nie:
Mohs a ɛyɛ den : 9
Kɔla : Ruby - Pinkish-kɔkɔɔ kosi kɔkɔɔ tuntum; Sapphire - Kɔla foforo biara, a nea enni kɔla, fitaa, fitaa, bruu, bruu-ahabammono, ahabammono, violet, kɔkɔɔ, borɔdɔma, kɔkɔɔ, kɔkɔɔ-ahabammono, bruu, sika kɔkɔɔ amber, peachy pink, pink, ne tuntum ka ho
Ahwehwɛ nhyehyɛe : Ahinanan (afã abiɛsa) .
Luster : Vitreous (ahwehwɛ) kosi adamantine; Vitreous kosi sub-adamantine (wɔayɛ no fɛfɛɛfɛ); Vitreous (a ɛpaapae) .
Transparency : Ɛyɛ nea ɛda adi pefee kosi nea ɛnyɛ nea ɛda adi pefee
Nneɛma a ɛma hann yɛ hyew : 1.757-1.779; Nea ɛba fam sen biara = Sri Lanka safir bruu; Nea ɛkorɔn sen biara = Sri Lanka safir a ɛyɛ ahabammono
Nnipa dodow : 3.98-4.10
Cleavage : Biara nni hɔ
Fracture : Conchoidal anaasɛ ɛnyɛ pɛpɛɛpɛ/ɛnyɛ pɛpɛɛpɛ
Streak : Ɛyɛ fitaa
Luminescence : Fluorescence & X-ray kɔla ahorow a ɛwɔ hɔ; Rubies - Ɛsono sɛnea fibea te, ɛtaa yɛ kɔkɔɔ, borɔdɔma-kɔkɔɔ, anaa pink; Sapphires - Ɛtɔ da bi a ɛyɛ fluorescent na ɛsono kɔla ne fibea, ebinom yɛ kɔkɔɔ anaa kɔkɔɔ-akutu wɔ X-ray mu
Pleochroism : Ɛwɔ hɔ na ɛyɛ den yiye wɔ abo a ɛwɔ kɔla ahorow mu; Ruby - kɔkɔɔ/kɔkɔɔ-kɔkɔɔ kɔsi borɔdɔma-kɔkɔɔ; Sapphire - Ɛsono sɛnea abo kɔla te
Nsonsonoe abien : 0.008-0.009
Nneɛma a ɛwɔ aniwa so : Asterism - Ruby & sapphire; Kɔla a ɛsakra - Safir; Chatoyancy - Ruby & safir a wɔde yɛ nneɛma
Ntrɛwmu : 0.018
Corundum Ahorow Ahorow
Corundum ɔbo biara wɔ n’ankasa subtypes.
Mfonini a ɛwɔ atifi hɔ no: Star ruby
Rubies a wɔde ayɛ nneɛma
Corundum kɔkɔɔ nyinaa yɛ ruby bere a kɔla afoforo nyinaa yɛ safir.
Ruby ahorow nketewa no ne:
Pigeon Blood Ruby : Kɔkɔɔ ahorow a ɛyɛ hyew a enni ase
Star Ruby : Ruby a ɔreda asterism , hann nsoromma a ɛwɔ hann asia adi wɔ n’anim
Geneva Ruby : Aboɔden abo a wɔde ayɛ a akyɛ sen biara, a wɔyɛɛ no bɛyɛ afe 1885 mu
Verneuil Ruby : Ruby a wɔayɛ no sɛnea ogyaframa a wɔde frafra (a wɔfrɛ no Verneuil nhyehyɛe) so na ɛyɛe .
Flux-Grown Ruby : Ruby a wɔayɛ no denam aluminium oxide a wɔpete so wɔ flux a ayɛ hyew mu, na ɛno akyi no wɔde ruby a ɛyɛ ahwehwɛ
Wɔ ruby a wɔde yɛ nneɛma mu no, verneuil (anaasɛ “ogya a wɔde frafra”) kwan no ne nea wɔtaa fa so na ɛho ka sua sen biara.
Ebia nhoma ahorow a ɛda nsow de wɔn din bata ho, te sɛ “Burma ruby” anaa “African ruby.”
Mfonini a ɛwɔ atifi hɔ no: Padparadscha safir
Safir a wɔde yɛ nneɛma
Nea ɛnte sɛ ruby no, safir wɔ kɔla ahorow pii. Blue corundum yɛ safir, nanso safir kɔla ahorow kata nyankontɔn no nyinaa ho.
Safir ahorow nketewa no ne:
Color-Change Sapphire : Ahorow ahorow a ɛsakra kɔla wɔ kanea ahorow ase (mpɛn pii no bruu kɔ violet, nanso grey- anaa greenish-blue kɔ brownish-red na eye sen biara)
Star Sapphire : Nsoromma ahorow a ɛda nsoromma a ɛwɔ nsoromma 6 anaa 12 adi
Padparadscha Sapphire : Nea ɛntaa nsi no mu biako, ɛyɛ pink kosi peach kɔla a ɛte sɛ lotus nhwiren kɔla
Kashmir Sapphire : Safir a ɛsom bo sen biara (wɔntu bio), a ɛyɛ bruu a ɛyɛ hyew na ɛte sɛ velvet
Corundum Nkyerɛase & Abakɔsɛm
Ruby yɛ ahobammɔ, akɔnnɔ, ne ade a wɔda no adi ho sɛnkyerɛnne, na ɛtɔ mmere bi a wɔfrɛ no “Nkɔmhyɛ Abo.” Safire yɛ ɔdɔ foforo, yiyedi, ne ahofama ho sɛnkyerɛnne. Sika safir gyina hɔ ma nyansa, nneɛma a ɛdɔɔso, ne honhom fam tumi pɔtee.
Saa ara nso na corundum wɔ nyamesom ne wiasefo anansesɛm a efi mfehaha pii a atwam ni.
Ná tete Persiafo gye di sɛ safir fi nnyinaso bi a ɛkari pɛ wɔ Asase so. Ná ahene hyɛ safir de bɔ wɔn ho ban, bere a na asɔfo hyɛ safir bruu a ɛyɛ ɔsoro ho sɛnkyerɛnne.
Bible mu no, ruby ne safir pue wɔ abo dumien a ɛwɔ Ɔsɔfo Panyin no Koko mu no mu. Safire nso pue wɔ Yerusalem Foforo “fapem abo” dumien no mu.
Wɔ Indiafo nyamesom ahorow pii mu no, Navaratna (anaasɛ “aboɔden abo akron”) yɛ agyan a mfaso wɔ so, a ɛtaa yɛ nsoromma mu hwɛ, a safir kɔkɔɔ ne ruby nyinaa wom. Nkramofo gyidi kyerɛ sɛ onipa a odi kan, Adam, bɔɔ aboɔden abo wɔ Sri Lanka bere a wɔpam no fii Eden Turo no mu akyi.
Ɛno yɛ nea ɛretwetwe kɛkɛ, efisɛ anansesɛm a atwa rubi ne safir ho ahyia no trɛw amammerɛ ne bere ahorow du du pii mu no.
Abakɔsɛm
Edin “corundum” no bae bere tenten wɔ “ruby” ne “sapphire,” a wonya fii Sanskrit kasa kuruvinda , a ɛkyerɛ “ruby” mu no akyi. Nea edi kan a wɔde dii dwuma (a wɔkyerɛw no “corinvindum”) fi Engiresini abɔde ho nimdefo John Woodward hɔ wɔ 1725. Mprempren nkyerɛwde no fi Irelandni asase ho nimdefo Richard Kirwan hɔ wɔ 1794 mu.
Nea edi kan a Corundum hui no mu nna hɔ, nanso anyɛ yiye koraa no, rubies kɔ akyiri kodu 2500 A.Y.B. Safir ho kyerɛwtohɔ a akyɛ sen biara a wonim no fi tete Etruscanfo a na wɔwɔ nnɛyi Italy wɔ 600-700 A.Y.B.
Ná Sri Lanka ne corundum beae a ɛho hia sen biara wɔ abakɔsɛm mu. Wɔn safir ahorow no gyee din bere a Marco Polo kaa wɔn ho asɛm wɔ ne afeha a ɛto so 13 akwantu nhoma Book of Marvels mu no.
Esiane sɛ nyansahu mu aboɔden abo a wɔde hu aboɔden abo no amma akyiri yi nti, wɔadi mfomso aka sɛ abo kɔkɔɔ anaa bruu pii yɛ corundum. Anyɛ yiye koraa no, wɔ mfe 1000 mu no, wɔkɔɔ so dii mfomso buu spinel sɛ corundum, te sɛ spinel kɔkɔɔ a ɛwɔ anansesɛm mu “Black Prince’s Ruby” mu no.
Nhwɛso foforo a agye din ne Delhi Purple Sapphire, ɔbo bi a wɔbɔ amanneɛ sɛ wɔadome a ɛbɛdaa adi sɛ ɛyɛ amethyst .
Aboɔ a ɛyɛ corundum ankasa agye din wɔ abakɔsɛm ne pop amammerɛ mu, te sɛ Asprey & Garrard 1998 safire Heart of the Ocean kɔnmuade a ɛsuasua nea ɛwɔ James Cameron Titanic mu no.
Corundum Ayaresa Nneɛma
Corundum ahorow nyinaa betumi ayɛ adwuma sɛ abo a ɛsa yare . Sɛ́ aboɔden abo kɔkɔɔ , rubies fi awosu mu ma ɛkanyan, anigye, ne ahoɔden kɛse. Safir bruu a agye din no ka aboɔden abo bruu afoforo ho ma ɛde kommyɛ ne adwene mu pefeeyɛ ba.
Ahoɔden ayaresafo de ruby di dwuma sɛ ntini chakra ɔbo , de ahobammɔ ne ahobammɔ si hɔ. Safir tumi bue chakra biara, ɛwom sɛ safir bruu yɛ kɛse ma menewa chakra de, na ɛboa wo ma wote wo nokware ase na woka ho asɛm.
Na honam ne nkate fam ayaresa nso ɛ?
Nipadua mu Ayaresa
Wɔ honam fam no, nkurɔfo ani gye rubies ho sɛ wɔde sa mogya anaa koma mu haw ahorow. Wɔkyerɛ sɛ safir sa nna a wontumi nna ne anisoadehu ho nsɛm. Mfinimfini mmere mu gyidi ahorow de ayaresa tumi ahorow maa nsateaa ahorow a wɔde bɛhyɛ safir nkaa wɔ so:
Index (Pointer) Finger : Nnuan a wɔyam ne ɔhome nhyehyɛe
Mfinimfini Nsateaa : Akisikuru, mmerɛbo, adwene
Ring Finger : Nkwammoaa a ɛkɔ nipadua no mu ne asaabo
Little Finger ( Pinky ) : Awo nhyehyɛe ne nipadua no ase
Nkate mu Ayaresa
Wogye di sɛ corundum aboɔden abo bɔ wo ho ban fi nsusuwii a epira ho na ɛhyɛ ahosodi ho nkuran. Wobetumi nso aboa wo ma woadi ntawntawdi ho dwuma wɔ abusuabɔ mu na ama dadwen afi hɔ.
Corundum Aboɔden Aboɔ Nneɛma a Ɛwɔ Hɔ
Abenfo gyina ne kɔla, sɛnea wɔatwitwa, sɛnea emu da hɔ, emu duru a ɛyɛ carat, ne sɛnea wɔde sa yare so na ɛkyerɛ aboɔden abo a wɔfrɛ no corundum.
Ahosuo
Ruby kɔla kɔkɔɔ no fi chromium efĩ mu, bere a safir kɔla biara fi efĩ ahorow mu. Sunsuma a ɛsom bo sen biara ne mmorɔnoma mogya ruby.
Ɛmfa ho sɛ ɛyɛ kɔla a abu so sen biara no, safir bruu da so ara nya bo kɛse esiane sɛ wɔhwehwɛ kɛse nti. Padparadscha safir na edi hɔ a ɛsom bo sen biara. Safir kɔkɔɔ, ahabammono, ne fitaa yɛ nea ne bo yɛ den.
Twa
Corundum a ɛyɛ aboɔden abo dodow no ara yɛ faceted , a ɛsom bo sen biara. Ɛsɛ sɛ wotwa nsoromma ruby anaa nsoromma safir sɛ cabochons na ama wɔada “nsoromma” no adi yiye. Nneɛma afoforo a wɔatwitwa no bi ne nhwiren, nneɛma a wɔasen, ne nhwɛsode ahorow a wɔannoa (wɔntwitwaa).
Ɛda adi pefee
Corundum wɔ Type II kɔla aboɔden abo a emu da hɔ grade , a ɛkyerɛ sɛ nneɛma kakraa bi a wotumi hu a wɔde ka ho no yɛ nea ɛfata, gye aboɔden abo a ɛkorɔn mu. Adetɔnfo pii de diamond clarity grades di dwuma ma corundum.
Nneɛma a wɔde ka ho dodow no ara brɛ corundum bo ase, nanso hematite anaa rutile a wɔde ka ho a ɛma nsoromma mu hwɛ anaasɛ Kashmir safir ahorow a ɛte sɛ velvet no betumi ama bo akɔ soro. Cat’s eye corundum nso ba saa ara, ɛwom sɛ abo yi wɔ “nsoromma” nkɛntɛnso a ɛnyɛ pɛ ankasa de.
Nneɛma a wɔtaa de ka ho anaa sintɔ ahorow a ɛwɔ abɔde mu corundum mu no bi ne:
Nsateaa nkyerɛwee (nsu nketenkete a ɛwɔ mu a nsu ahyɛ mu ma) .
Rutile a ɛte sɛ nnade a ɛtwam wɔ digrii 60 mu
Ntrɛwmu a ɛyɛ ahinanan a enyin
Ahwehwɛ (sɛ nhwɛso no, zircon , orthoclase , calcite , apatite , pyrite , magnetite , biotite , spinel) .
Nokwarem no, sɛnea wotumi hu nneɛma a wɔde aka ho no betumi agyina sɛnea abohene bi kɛse te so.
Carat Mu duru
Ruby aboɔden abo a ne mu duru nnu carat 1 wɔ baabiara, nanso aboɔden abo a emu duru yɛ carat 1 anaa nea ɛboro saa no bo yɛ den kɛse.
Saa ara nso na safire bo kɔ soro wɔ carat biara mu sɛnea carat mu duru te, na saa bɛboro carat 5 no ho yɛ na.
Ayaresa ahorow
Corundum ayaresa pii wɔ hɔ a wɔtaa de di dwuma.
Ebinom ma kɔla no tu mpɔn anaasɛ wɔsesa , te sɛ aduru a wɔde kɔla, ɔhyew, mframa a wɔde bɔ, nhama a ɛyɛ tratraa a wɔde kata so, ne lattice a wɔde trɛw. Eyinom bi nso tumi ma pefeeyɛ (ɔhyew) anaasɛ aniwa mu nneɛma te sɛ asterism (ɔhyew anaa diffusion) atu mpɔn.
Ayaresa afoforo ma ɛtra hɔ kyɛ denam sintɔ ahorow a wɔde hyɛ mu, te sɛ flux/fracture healing, ngo a wɔde hyɛ mu, kɔbere ahwehwɛ a wɔde hyɛ mu, ne nneɛma afoforo a wɔde hyɛ mu (sɛ nhwɛso no, aduru, ahwehwɛ). Eyinom bi nso betumi ama emu ada hɔ (a ɛpaapae ayaresa ne kɔbere ahwehwɛ a wɔde hyɛ mu) anaasɛ kɔla (nneɛma afoforo a wɔde hyɛ mu) atu mpɔn.
Ayaresa ahorow bi abu so kɛse. Nneɛma a wɔde kata sini a ɛyɛ tratraa so ne nea ɛntaa nsi, bere a ɔhyew, akisikuru a wɔsa, ne kɔbere a wɔde hyɛ ahwehwɛ mu na abu so kɛse.
Wɔyɛ ebinom wɔ subtypes bi nkutoo so. Lattice diffusion ma sapphire padparadscha kɔla a ɛyɛ hann. Nsoromma ruby ne safir bruu nkutoo so na ɛtrɛw.
Wubetumi asɔ ayaresa ahorow ahwɛ denam nsu a wode bɛhyɛ mu ne/anaasɛ nea wobɛma ayɛ kɛse so wɔ tebea horow no nyinaa mu gye mframa a wɔde ma, a wontumi nhu.
Kae: Ɛsɛ sɛ wɔn a wɔtɔn aboɔden abo no da aboɔden abo ayaresa biara adi bere nyinaa . Bisa aboɔden abo adansedi krataa a agye din bere a woretɔ no.
Corundum Formation & Nneɛma a Wɔde Yɛ Adwuma
Corundum ba bere a abotan a aluminium pii wom na silica nnim no nya nsakrae a ɛyɛ hyew kɛse no.
Wɔn a wotu ɔbo no hu ɔbo no wɔ mmeae ahorow, efi dolomite a asakra ne limestone so kosi placer a wɔde asie so kosi ogya abotan te sɛ nepheline syenite so.
Mmeae a Wɔtu Tuo
Ɛwom sɛ wohu mfiridwuma mu corundum wɔ wiase nyinaa de, nanso mpɔtam bi nkutoo na wɔyɛ corundum a ɛyɛ aboɔden abo.
Safir fibea ahorow a ɛho hia a ɛyɛ aboɔden abo ne:
Australia
Kashmir na ɛwɔ hɔ
Montana, U.S.A., na ɛwɔ hɔ
Myanmar na ɛwɔ hɔ
Sri Lanka na ɛwɔ hɔ
Thailand
Ruby fibea ahorow a ɛda nsow a ɛyɛ aboɔden abo ne:
Afghanistan
Cambodia na ɛwɔ hɔ
Kenya
Madagascar
Mozambique na ɛwɔ hɔ
Myanmar na ɛwɔ hɔ
Nepal
Sri Lanka na ɛwɔ hɔ
Tanzania na ɛwɔ hɔ
Thailand
Vietnam
Afei, corundum bo yɛ den dɛn?
Corundum Bo & Ne Bo
Corundum a ɛyɛ aboɔden abo bo yɛ den nanso ɛtrɛw nso, na safir a ɛyɛ fɛ pii wɔ sikasɛm mu . Nokwarem no, ɛbo gyina ɔbo biara su so.
Ruby Bo a Wɔbɔ
Rubies a wɔde ɔhyew ayɛ, a ɛwɔ afã horow no bo a wɔbɔ:
0.5 kosi 1 carat : $150 kosi $6,500 wɔ carat biara mu
Carat 1 kosi 2 : $300 kosi $10,000 wɔ carat biara mu
Carat 2 kosi 3 : $450 kosi $20,000 wɔ carat biara mu
Carat 3 kosi 5 : $700 kosi $25,000 wɔ carat biara mu
5+ carats : $1,200 kosi $35,000 wɔ carat biara mu
Nea edi hɔ, Burma rubies a wɔansa no yare, a ɛwɔ afã horow:
0.5 kosi 1 carat : $550 kosi $18,000 wɔ carat biara mu
Carat 1 kosi 2 : $1,000 kosi $35,000 wɔ carat biara mu
Carat 2 kosi 3 : $1,250 kosi $70,000 wɔ carat biara mu
Carat 3 kosi 5 : $2,500 kosi $100,000 wɔ carat biara mu
5+ carats : $4,500 kosi $180,000 wɔ carat biara mu
Ruby cabochons fi $20-$700 wɔ carat biara mu, anaasɛ $4,500 wɔ carat biara mu ma taksi a ɛboro carat 3. Nsoromma rubies fi $100-$5,000 wɔ carat biara mu. India rubies yɛ nea ne bo yɛ den sen biara a ne bo yɛ $1-$15 wɔ carat biara mu.
Safire Bo a Wɔbɔ
Nea ne bo yɛ den sen biara ne Kashmir safir a ɛwɔ afã horow:
Carat 1 kosi 2 : $2,400 kosi $22,650 wɔ carat biara mu
Carat 2 kosi 3: $2,800 kosi $33,000 wɔ carat biara mu
Carat 3 kosi 4: $5,000 kosi $40,500 wɔ carat biara mu
4+ carats : $17,700 kosi $51,000 wɔ carat biara mu
Mprempren safir bruu a wɔde ɔhyew ayɛ, a ɛwɔ afã horow:
0.5 kosi 0.75 carat : $210 kosi $1,275 wɔ carat biara mu
0.75 kosi 1 carat: $330 kosi $1,500 wɔ carat biara mu
Carat 1 kosi 2: $900 kosi $4,500 wɔ carat biara mu
2+ carats : $460 kosi $10,500 wɔ carat biara mu
Nea edi hɔ ne safir a ɛwɔ afã horow, pink (Padparadscha):
0.5 kosi 0.75 carat : $140 kosi $675 wɔ carat biara mu
0.75 kosi 1 carat: $50 kosi $1,050 wɔ carat biara mu
Carat 1 kosi 2: $110 kosi $3,300 wɔ carat biara mu
2+ carats : $825 kosi $8,400 wɔ carat biara mu
Safir a ɛwɔ afã horow no kɔla afoforo:
Kɔkɔɔ : $50 kosi $750 wɔ carat biara a ɛba fam sen carat 2; $375 kosi $1,625 wɔ carat biara a ɛboro carat 2 so
Green : $20 kosi $150 wɔ carat biara a ɛba fam sen carat 2; $30 kosi $240 wɔ carat biara a ɛboro carat 2 so
Purple : $280 kosi $575 wɔ carat biara a ɛba fam sen carat 2; $1,200 kosi $1,840 wɔ carat biara a ɛboro carat 2 so
White : $50 kosi $200 wɔ carat biara mu (carat 0.5 kosi 3); $100 kosi $700 wɔ carat biara ho (carat 3 kosi 5); $500 kosi $800 wɔ carat biara mu (carat 5 kosi 15) .
Kɔla Sesa : $120 kosi $3,000 wɔ carat biara mu (0.5 kosi 1 carat); $300 kosi $5,000 wɔ carat biara mu (carat 1 kosi 7) .
Blue sapphire cabochons fi $20-$300 wɔ carat biara mu. Nsoromma tuntum safir yɛ nea ne bo yɛ den sen biara a ne bo yɛ dɔla 13-30 wɔ carat biara mu, na nsoromma bruu safir di akyi a ne bo yɛ dɔla 20-1,200 wɔ carat biara mu. Nsoromma safir a ɛyɛ kɔla ahorow a ɛyɛ fɛ no gye $100-$500 wɔ carat biara ho.
Corundum Hwɛ ne Nsiesiei
Near- diamond hardness na enni cleavage kyerɛ sɛ corundum aboɔden abo hwɛ yɛ mmerɛw. Abo a emu da hɔ yiye na ɛnyɛ ayaresa biara (ɔhyew da nkyɛn) na ɛyɛ mmerɛw sen biara, nanso hwɛ yiye wɔ aboɔden abo a wɔayɛ ho adwuma, wɔde ka ho kɛse, anaasɛ abubu ho — ebia wobɛpɛ sɛ wode ahobammɔ nhyehyɛe ma agude a wɔde saa ahorow a ɛyɛ mmerɛw yi ayɛ.
Nsu a ɛyɛ hyew, samina a ɛnyɛ den, ne brɔs a ɛyɛ mmerɛw nkutoo na ɛho tew corundum a ɛyɛ mmerɛw no ho. Kwati nnuru a wɔde tew nneɛma a ano yɛ den anaasɛ nsu a ɛyɛ hyew, ne nnuru a ano yɛ den. Wobetumi de mfiri a wɔde tew ho ahohoro corundum abo afoforo ho.
Corundum agye wo nnommum?
Sɛ corundum fa wo dommum a, ɛnyɛ wo nko ara — saa aboɔden abo yi ama nkurɔfo akɔmfo mfe pii. Esiane sɛ kɔla ahorow ne mfaso ahorow wɔ so nti, asɛnnennen biako pɛ ne sɛ wobɛpaw nea w’ani gye ho!
搜尋Gemstone Encyclopedia
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How To's is where you will find helpful articles from gem Rock Auctions on how to cut gemstones, select gemstones and buy gemstones.
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