MN834 Sample ID MN834 • Cabinet K Chalcedony 14cm W x 9.1cm H x 5.4cm D • 8.88g Sample TypeMineralColorBlue, Gray, WhiteLusterDull StreakWhiteCleavage/FractureFibrous FractureSpecific Gravity2.3 Geographic Location/Date Mohs Hardness 8 Two striking specimens exhibiting delicate hues of blue, white, and gray in a fibrous fracture pattern, characteristic of chalcedony’s microcrystalline structure. Subtle luster and soft translucence accentuate its layered, silky textures. They are a member of the Quartz family. Description of Mohs scale here