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 :
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 :
Name :
Aventurine and Aventurine Quartz: (Variety of Quartz or Quartzite)
Etymology:
From the Italian avventura = chance | NB: "Aventurine", when written alone...
Presentation :
Names) :
Obsidian / Volcanic Glass: Apache Tear, Celestial Eye, Snow Obsidian etc.
Etymology:
Obsidian: Named after the Roman Obsius, who is believed to h...
