Perhaps the most rarely seen sulfide, in geodized brachiopods from Georgetown, is Sphalerite. Although approximately one third of geodized brachiopods will have Pyrite, Marcasite or Goethite, less than 1 in 100 will house Sphalerite. Sphalerite, at this locality, tends to form small dark reddish brown to black crystal groups and masses. This mineral will form…
Diamond Clarity – What and Why It Matters?
The magnificence of diamonds lies in their sparkling beauty and radiance but if you are out to purchase one of these precious stones, then you need to look beyond the exterior and get familiar with the technical aspects as well. By knowing how to select the finest of the gemstones, you can get the most…