As they are very hard and very beautiful gems and minerals, Grenades have several uses. The most attractive are used in jewelry and ornaments and the rest are used as abrasives by the industry. Grenades exist all over the world. Quite hard, their crystals belong to the cubic system. Those that contain iron generally melt more easily than others, and acids have little effect on them.


  • Title: Garnet
  • Original Source: Tesouros da Terra - 2011, Editora Planeta DeAgostini - Revisão científica de: Prof. Dr. Rainer Schultz Guttler, do Instituto de Geociências (IGc), USP e Ideval Souza Costa, Geólogo do Museu de Ciências do IGc, USP.

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