COLORED STONES 6
Whichxcofxcthesexcisxcconsideredxcaxcgemxctreatment?xc-xcanswer--Fracturexcfulling
Writtenxcinformationxconxcdyeingxcgemsxcdatesxcbackxctoxcaboutxc-xcanswer--200bc
Whichxcgemxcisxccommonlyxcheat-treated?xc-xcanswer--Amber
Heatxccanxclightenxcamethyst'sxcpurplexcbyxc-xcanswer--
causingxcchangesxcinxccolorxccenters
Creatingxcasterismxcwithxcheatxctreatmentxcisxcmostxccommonxcinxc-xcanswer--
Syntheticxccorrundum
Whatxccoloringxcagentsxcdoxctreatersxcusexcduringxclatticexcdiffusionxctoxccreatexcaxcshallow
xclayerxcofxcbluexccolorxcinxccorundum?xc-xcanswer--Titaniumxcoxidexcandxcironxcoxide
Howxcdeepxcisxcthexccolorxclayerxcthatxclatticexcdiffusionxcwithxctitaniumxcorxcchromiumxccre
atesxcinxccorundum?xc-xcanswer--0.01xcmmxctoxc0.50xcmm
Whatxcagentxccanxccreatexcaxcshallowxclayerxcofxcasterismxcwhenxcit'sxcintroducedxcbelowxct
hexcsurfacexcofxcaxccorundumxccabochonxcbyxclatticexcdiffusion?xc-xcanswer--
Titaniumxcoxide
Forxceffectivexcclarityxcenhancement,xcthexcmaterialxcusedxctoxcfillxcaxcgem'sxcfracturesxcmu
stxchavexcnearlyxcthexcsamexc-xcanswer--refractivexcindexxcasxcthexcgem
Afterxcirradiation,xcwhichxcgem'sxccolorxcisxcstablexcunderxcnormalxcwearingxcconditions?xc-
xcanswer--GoldenxcBeryl
Jadeitexcisxcoftenxc-xcanswer--bleachedxcandxcpolymerxcimpregnated
ThexcZacheryxcmethodxcisxcaxctreatmentxcappliedxctoxc-xcanswer--turquoise
Heatxctreatmentxcinxcaxcreducingxcenvironmentxc-xcanswer--
deepensxcbluexccolorxcinxcsapphire
Quartzxcorxctopazxcwithxcaxcthinxclayerxcofxcgoldxcdepositedxconxcthexcsurfacexcisxcknownxcas
xc-xcanswer--AquaxcAura
Treatersxcusexcsugarxctreatmentxctoxcenhancexc-xcanswer--Opal
Axctreatmentxcthatxcusesxcchemicalsxctoxclightenxcorxcremovexccolorxc-xcanswer--Bleaching
Fillingxcofxcporesxcorxcotherxcopeningsxcwithxcmeltedxcwax,xcresin,xcpolymer,xcorxcplasticxcto
xcimprovexcappearancexcandxcstabilityxcisxc-xcanswer--Colorlessxcimpregnation
Whichxcofxcthesexcisxcconsideredxcaxcgemxctreatment?xc-xcanswer--Fracturexcfulling
Writtenxcinformationxconxcdyeingxcgemsxcdatesxcbackxctoxcaboutxc-xcanswer--200bc
Whichxcgemxcisxccommonlyxcheat-treated?xc-xcanswer--Amber
Heatxccanxclightenxcamethyst'sxcpurplexcbyxc-xcanswer--
causingxcchangesxcinxccolorxccenters
Creatingxcasterismxcwithxcheatxctreatmentxcisxcmostxccommonxcinxc-xcanswer--
Syntheticxccorrundum
Whatxccoloringxcagentsxcdoxctreatersxcusexcduringxclatticexcdiffusionxctoxccreatexcaxcshallow
xclayerxcofxcbluexccolorxcinxccorundum?xc-xcanswer--Titaniumxcoxidexcandxcironxcoxide
Howxcdeepxcisxcthexccolorxclayerxcthatxclatticexcdiffusionxcwithxctitaniumxcorxcchromiumxccre
atesxcinxccorundum?xc-xcanswer--0.01xcmmxctoxc0.50xcmm
Whatxcagentxccanxccreatexcaxcshallowxclayerxcofxcasterismxcwhenxcit'sxcintroducedxcbelowxct
hexcsurfacexcofxcaxccorundumxccabochonxcbyxclatticexcdiffusion?xc-xcanswer--
Titaniumxcoxide
Forxceffectivexcclarityxcenhancement,xcthexcmaterialxcusedxctoxcfillxcaxcgem'sxcfracturesxcmu
stxchavexcnearlyxcthexcsamexc-xcanswer--refractivexcindexxcasxcthexcgem
Afterxcirradiation,xcwhichxcgem'sxccolorxcisxcstablexcunderxcnormalxcwearingxcconditions?xc-
xcanswer--GoldenxcBeryl
Jadeitexcisxcoftenxc-xcanswer--bleachedxcandxcpolymerxcimpregnated
ThexcZacheryxcmethodxcisxcaxctreatmentxcappliedxctoxc-xcanswer--turquoise
Heatxctreatmentxcinxcaxcreducingxcenvironmentxc-xcanswer--
deepensxcbluexccolorxcinxcsapphire
Quartzxcorxctopazxcwithxcaxcthinxclayerxcofxcgoldxcdepositedxconxcthexcsurfacexcisxcknownxcas
xc-xcanswer--AquaxcAura
Treatersxcusexcsugarxctreatmentxctoxcenhancexc-xcanswer--Opal
Axctreatmentxcthatxcusesxcchemicalsxctoxclightenxcorxcremovexccolorxc-xcanswer--Bleaching
Fillingxcofxcporesxcorxcotherxcopeningsxcwithxcmeltedxcwax,xcresin,xcpolymer,xcorxcplasticxcto
xcimprovexcappearancexcandxcstabilityxcisxc-xcanswer--Colorlessxcimpregnation
