MN402

Sample ID MN402 • Cabinet F

Sphalerite

3.96748cm W x 1.80594cm H x 3.28168cm D • 28g
Sample TypeMineralColorBlack with red undertonesLusterResinous to Glasslike
StreakLight BrownCleavage/FractureRhombohedral Cleavage/Uneven FractureSpecific Gravity4.66
Geographic Location/DateCumberland England Mohs Hardness 5

Small Ore of Zinc. Black to the visible eye but red when scratched. Groundmass of resinous rock. It has Tetragonal crystals that are opaque.