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• 1 2020-06-11T12:43:15+00:00 Mineral sample 04 (ERSC 1P01) 9 Sample 4 of the first year minerals plain 2020-09-12T00:59:14+00:00 back to the 1P01 index
  
  Sample 04:
  360°:
  SAMPLE A
  
  
  SAMPLE B
  
  
  SAMPLE C
  
  
  Static image (click to expand):
  
  
  
  Hardness: 
  This sample has the hardness of Fluorite
  
  Streak: 
  Some of the powder left on the streak plate (H=6.5) has been rubbed off on the piece of felt in the picture. You can click on the picture to expand it.​
  
  
  Acid Test:
  This sample did not react with 10% HCl acid.