MN308 Sample ID MN308 • Cabinet E Kyanite 10.968cm W x 12.448cm H x 6.947cm D • 882g Sample TypeMineralColorBlue and white (somewhat yellowed on white parts)LusterVitreous StreakWhiteCleavage/FracturePerfect cleavage in one direction. Okay in the second.Specific Gravity Geographic Location/DateJudd's Bridge CT Mohs Hardness 8 Long chunk of Kyanite running through some sort of white-ish crystal aggregate. Kyanite is striped blue and white. It appears rectangular and is flaky along one plane (one directional cleavage). Notable for ID process: harder across than it is longways. Description of Mohs scale here