Strong>Angelite or Anhydrite is a calcium sulphate mineral formed from celestite that has been compressed over millions of years. It is a variety of gypsum that has been dehydrated and shrunk as a result, hence its name from the Greek word “anhydros” meaning “without water”. In the presence of water the anhydride is rehydrated and produces gypsum again. It has a hardness of 3.5 and crystallizes in the orthorhombic crystal system. This gemstone brings calm and serenity.
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