8 grams and measuring 69x27x20mm

the bead strand contains over 60ct of natural Rutile Quartz beads

5 Grams / 2

however tons of them were used during the 80's for lapidary faceting

Pseudomorph Goethite After Marcasite | Prophecy Stone | 66.7 gr | Farafra Oasis, Egypt Elpidite 8 grams and measuring 69x27x20mmPseudomorphs are mineral specimens that have the external shape of one mineral but are composed of another. The pseudomorph goethite after marcasite forms when marcasite is exposed to oxidizing conditions and starts to oxidize and break down. As the marcasite breaks down, goethite replaces it in the crystal structure, preserving the shape of the original marcasite crystal. The resulting specimen appears as a marcasite crystal, but is actually composed