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• 1 2020-06-16T15:05:21+00:00 Mineral sample 018 (ERSC1P01) 5 Sample 018 of the first-year lab samples plain 2020-09-10T23:36:23+00:00 back to 1P01 index
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  Static images (click to enlarge):
  
  
  
  
  Streak: Some of the powder from the mineral is left on the streak plate (H=6.5) . You can click on the picture to expand it.
  
  
  
  ​Hardness: Variable range
  
  Acid Test
  
  This sample does not react to 10% HCl