Large hollow chalcedony nodule Spider jasper the microcline shows milky cream

the microcline shows milky cream to red color with blue speckles throughout

making this a dramatic Halloween mineral specimen

UV REACTIVITY microcline feldspar can have slight red fluorescence which was present in many of these specimens

Thin dark iron bands create several layers of hills filled with saturated layering

Large hollow chalcedony nodule Spider jasper the microcline shows milky creamLocale: Morocco Approx size: 2 x 2 x 2" Approx weight: 232g Sometimes called "panda," truffle, womb stone, or witches wart chalcedony (hey, you dont even want to know what I was calling them), these nodules have slightly obscene looking bulbous, knobby forms in contrasting white and dark brown gray semi translucent chalcedony. The nodules are actually believed to be a fossil pseudomorph of prehistoric sponge colonies dating back to the Upper