Accueil >  Term: dystome spar
dystome spar

A monoclinic mineral, CaBSiO4(OH) ; gadolinite group; in cracks and cavities in diabase or basalt; may be used as a minor gem. Also spelled datholite.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 points
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