COLORED STONES ESSENTIALS - ASSIGNMENT 5: TREATMENTS, SYNTHETICS, IMITATIONS, AND DISCLOSURE

COLORED STONES ESSENTIALS -
ASSIGNMENT 5: TREATMENTS,
SYNTHETICS, IMITATIONS, AND
DISCLOSURE

Anyxchuman-
controlledxcprocessxcthatxcimprovesxcthexcappearance,xcdurability,xcorxcvaluexcofxcaxcgemxc
isxcconsideredxc-xcanswer--treatment

Inxcthexctrade,xc"BxcJade"xcrefersxctoxcjadeitexcthatxchasxcbeenxcbleachedxcandxcthenxc-
xcanswer--impregnated xcwithxccolorlessxcresin



Thexcmostxccommonlyxcfracture-filledxcgemxcisxc-xcanswer--emerald

Cearlyxcandxcaccuratelyxcinformingxccustomersxcaboutxcthexcnaturexcofxcthexcgoodsxctheyxc
buyxcisxc-xcanswer--disclosure

Axclaboratoryxccreationxcwithxcessentiallyxcthexcsamexcchemicalxccompositionxcandxcstruct
urexcasxcitsxcnaturalxccounterpartxcisxcaxc-xcanswer--synthetic

Commonlyxcdyedxcgemsxcincludexcculturedxcpeart,xclapisxclazuli,xcturquoise,xcandxc-
xcanswer--jadeite



Onexcofxcthexcoldestxcandxcmostxccommonxctreatmentsxcisxc-xcanswer--heat

axctreatmentxcforxcbringingxcoutxcthexcpaly-of-colorxcinxcopalxcisxc-xcanswer--
sugarxctreatment

Backing,xccoating,xcandxcpaintingxcarexcthexcthreexcbasicxcmeansxcofxc-xcanswer--
surfacexcmodification

Coloredxcstonexcimitationsxcandxcthexcgemsxctheyxcreplacexcalwaysxchavexcthexcsamexc-
xcanswer--appearance



Thexctreatmentxcthatxcinvolvesxcexposingxcaxcgemxctoxchighxctemperaturesxcandxcchemical
sxctoxcgivexcitxcaxcmorexcmarketablexccolorxcisxccalledxc-xcanswer--latticexcdiffusion

Usingxcaxcchemicalxctoxclightenxcorxcremovexccolorxcisxcknowxcasxc-xcanswer--bleaching

Ifxcit'sxcpossiblexcthatxcaxcgemxchasxcbeenxctreated,xcthexcbestxcactionxcisxctoxc-xcanswer--
assumexctreatment