Presentation :
Silica dioxide SiO2.
Crystal whose growth stopped and then continued a few million years later and which kept the trace of this stopping. Sometimes layers of various mineral...
Presentation :
Etymology: from the Greek "barrus" = heavy, due to its high density.
Its genesis is mainly hydrothermal. It consists of barium, a crumb of lead, a hint of calcium and may co...
Presentation :
Etymology: from the Greek "barrus" = heavy, due to its high density.
Its genesis is mainly hydrothermal. It consists of barium, a crumb of lead, a hint of calcium and may co...
Presentation :
Silica dioxide SiO2.
Crystal whose growth stopped and then continued a few million years later and which kept the trace of this stopping. Sometimes layers of various mineral...
Presentation :
Silica dioxide SiO2.
Crystal whose growth stopped and then continued a few million years later and which kept the trace of this stopping. Sometimes layers of various mineral...
GREEN RIDGE QUARTZ
Presentation :
Very rare ! Green Ridge Quartz comes from the Green Ridge Mountain region of Maryland. This region is part of the great Appalachian mountain range w...
