This Specimen has been sold.
2.4" Calcite Crystal Cluster - Mexico
This specimen contains an aggregation of calcite crystals, collected from Mexico. The matrix is dark grey and somewhat flakey. A matrix like this is typically iron and manganese based, however there is no guarantee of composition. Also, worthy of mentioning are the microscopic selenite crystal sprays that can be found throughout the matrix and are slightly visible with the naked eye.