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A selection of Faden quartz crystal clusters
The classic explanation has long been that quartz slowly replaces fibrous crocidolite asbestos
silica rich fluid worked its way in
sized to have real presence on the wrist without losing its refinement
It is the kind of piece that rewards a slow
Goniatite Fossil 150mm — Morocco, Devonian Index Fossil faden pecimen A selection of Faden quartzA goniatite fossil from Morocco, 150mm and 544g, the coiled shell of an extinct marine cephalopod preserved in stone for roughly 390 million years since the Devonian period. Why are goniatites specifically valuable to geologists, beyond their appeal as fossils? They are what's known as index fossils, species that evolved quickly and spread widely enough that their presence in a rock layer tells scientists roughly when that layer formed. Goniatites are
