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How do I distinguish between rhodocrosite, pink mangano calcite, and pink aragonite, without damaging the specimen ?

0 votes
asked Sep 20, 2016 by Tina (120 points)

2 Answers

0 votes
Hi Tina, all three of these are soft stones.  Rhodochrosite may have a banding of light to medium salmon pink colors.  
Pink Aragonite is generally a petal pink with a whiter background.
Mangano calcite will show a deeper pink to red hue under a black light.
Hope that helps.
answered Sep 26, 2016 by Pinkdino
0 votes
maybe by testing their hardness or how they react with HCL but really carefully , the damage will be almost unoticable if you test them really carefully on "rough" specimens, if your specimens are polished or tumbled though i think that you will have problems..
answered Sep 26, 2016 by Tagiadin John (2,150 points)