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GEMOLOGICALVol.11/6GemologicalinstrumentR.I.LiquidItemCodeCompositionPurposeR.I.(nD)Contents103-024MethyleneIodide+Sulphur+TetraiodoethyleneOpticalcontactliquidforGemRefractometer1.81+/-0.00310g1.81REFRACTIVEINDEXLIQUIDGEMMASTER1.81RefractiveIndexLiquid,forusewiththeGemologicalRefractom-eter.Usedthehighestqualityrawmaterials,carefullycontrolledmanufacturingandwithcloseattentiontohealthandsafetyissues.Eachbottleisfittedwithuniquelydesigned,Teflon“restrictor”neck-insert,foruserfriendlyusage.1.330-1.8100.01/+/-0.002ItemCodeModelIndexRange/MinScaleMinScale/AccuracyPower/LightWeight/DimensionsAccessoriesMadeinJapan103-029160M-400g/38x123x81mmPolarizerfilter,CaseGEMREFRACTOMETERHighprecisionGemRefractometerfromJapan.Easyreadingviewwithhighqualityeyepieceopticallens.2typeswithoutlightsource,andwithbuilt-inlightsourceareavailable.103-030160MLEDAAAbatteryx3/LED400g/38x125x81mmAAAbatteryx3,Polarizerfilter,CaseGemRefractometerItemCodeWeight/DimensionsAccessories103-026600g/63x150x113mmPolarizingfilter,Dustcover,RIliquid10gbottleGIADUPLEXIIREFRACTOMETERTheonlyrefractometerdesignedto"spot"readcabochonsorsmallfacetswithdiameterslessthan1mm.TopofthelinedeskmodelwithremovableeyepiecemagnifierthatenlargesRIscaleimage.Hingedlidprotectsglassworkingareafromdust&abrasion.Refertoaffixedchartofmost-usedRI's.GIAPolariscopeItemCodeWeight/DimensionsAccessoriesPower103-0271kg/85x130x145mmOpticfiguresphere,4Xmagnifier,SampleplateAC90-240VGIAPOLARISCOPETheGIAPolariscopeisusedtotesttheopticalpropertiesofgemstoneanddeterminewhetherastoneissinglyrefractive,doublyrefractiveorisanaggregate.Doublyrefractivestonesmaybedividedfurtherastowhethertheyareuniaxialorbiaxial.Thepolariscopemayalsobeusedtodetectpleochroismindoublyrefractivecoloredstones.PORTABLEPOLARISCOPE&LEDFLATLIGHTCompact,foldablepolariscopedesignedforeasyportability.Itallowsyoutoefficientlytesttransparentandtranslucentgemstonesanywhere.Flatwhitedefusedlightsourceisthebestincombinationwithaportablepolariscopeordichroscope.ItemCodeProductNameWeight/DimensionsBattery103-031PortablePolariscope67g/47x39x50mm-103-032PortableLEDFlatlight43g/56x98x13mmAAAbatteryx2(15hours)GIARefractometerAlfaMirageCollectionPortablePolariscopePortableLEDFlatLight
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