Microcline with smoky quartz crystals Magnetite I have also seen examples

I have also seen examples where it appeared iron staining had leaked through the breaks

but studied closer the entire surface is coated in a very fine poker chip style calcite in a light yellowish color

and you will more often than not see them sold under that name and description

This piece has two large connected spheres like two scoops of ice cream

Microcline with smoky quartz crystals Magnetite I have also seen examplesLocale: Tatatila, Veracruz, Mexico Approx dimensions: 3. 5 x 2. 5 x 2" Approx weight: 515g (1. 15 lb) Microcline is a type of feldspar forming sculptural blocky, tabular crystals which can display parallel growth and twinning. This piece has large, well formed crystals. It is opaque and near white with a pearlescent sheen. Smoky quartz commonly accompanies this material, providing a dramatic contrast. The specimen is dotted with small smoky crystals,