Orange chalcedony geode with square formation Magnetite D - 4 x 2

D - 4 x 2 x 1"

Approx weight: 608g (1 1/3 lb)

25 x 2 x 1"

The material is known for its strong UV reaction and undulating ropy

though the two terms are often used interchangeably

Orange chalcedony geode with square formation Magnetite D - 4 x 2Locale: Atlas Mountains, Morocco Approx dimensions: 4 x 3 x 1. 5" Approx weight: 308g Typical stalactitic chalcedony is like a small cave lined with stalactites, botryoidal forms, and swirling agate patterns. This one lacks all of those lovely features so of course I was going to snatch it up. I've seen similar nested box shaped formations explained as pseudomorphs or perimorphs after cubic minerals, but that doesn't seem to apply here where the