Dims: 1.14x0.67x0.59" (2.9x1.7x1.5cm)
Wt: 0.58oz (16.4g)
Fesnillo, Zacatecas, Mexico
This is a nice specimen of polybasite. Its form is a book of thin stacked hexagonal plates, very like hematite can form. However, it does show the charateristic red flashes of polybasite in some places. Unfortunately, none of the hexagonal plates is complete, only 4 sides are visible, as the remainder of the crystal is missing. The polybasite is accompaned by a number of milky-white calcite crystals.