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Identity HelpUnknow Bonenburg Germany

9th Aug 2018 16:33 UTCAndré Heyninck

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00344840015660483194218.jpg



These minerals coming from the clay quarry of Bonenburg, Nordrhein- Westfalen,Detmold bezirk-Höxter-Warburg.

These "pink" crystals are on calcite with some pyrite crystals. Septarias are very commen here also small ammonites.

Is someone who recognized this material. It does not accumulate in hydrocloric acid.

Thanks.

André.

9th Aug 2018 18:15 UTCKevin Conroy Manager

I'm not familiar with this quarry, and it's difficult to tell what the crystals are from the photo. You mention that they "does not accumulate in hydrocloric acid", does this mean that bubbles do not form?


From the shape of the crystals I would guess they are either baryte, siderite or a second generation of calcite crystals, but testing the crystals will help determine what they are.

9th Aug 2018 18:35 UTCV. Stingl

Dolomite or siderite are a good guess.
 
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