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Kings of Gemstones Laboratory

Report Number 1408269

Online certificate

FamilyBorate minerals
TypeHowlite
ResultNatural
Hardness3.5
Density2.54
Refractive index1.592
TransparencyOpaque
Shape & CutTear
Measurements25.5 x 18 x 6.5 mm
TreatmentNo indications of treatment
Price
Attract to magnetNo
Glow under uvNo

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