ALGT REPORT 34087593 Species ..................................................................................... Natural Opal Variety ....................................................................................... Crystal Opal DESCRIPTION Shape & Cutting Style ..................................... Marquise, Mixed Cut Measurements ............................................ 26.39 x 10.14 x 6.17 mm Carat Weight ............................................................................. 6.08 Carat Color ............................... Light Orange (Yellowish) + Play of Colors Transparency ......................................................................... Transparent Optical Effect ........................................................................ Opaliscence No indication of treatment. Chemical Composition .................................................... SiO2·nH2O Crystal System .................................................................. Amorphous Mohs Hardness ..................................................................... 5.0 – 6.0 Specific Gravity .................................................. 1.95 – 2.25 g/cm3 Optical Character ........................................... Isotropic, Aggregate Refractive Index ......................................................... 1.370 – 1.475