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Mineral identification.
  
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vic rzonca




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PostPosted: Jan 07, 2018 13:11    Post subject: Mineral identification.  

Curiosity Mars Hand Lens Imager (MAHLI) photo acquired on Sol 1923, January 2, 2018. Using an onboard focusing process, the robot created this product by merging two to eight images previously taken by the MAHLI, located on the turret at the end of the rover’s robotic arm.
Credit: NASA/JPL-Caltech/MSSS



Curiosity-MAHLI-Sol-1923-January-2-2018-350x262.jpg
 Mineral: Unknown
 Description:
Mars
Centimeter sized?
Anyone have a guess?
 Viewed:  743 Time(s)

Curiosity-MAHLI-Sol-1923-January-2-2018-350x262.jpg


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Guitu




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PostPosted: Jan 11, 2018 14:19    Post subject: Re: Mineral identification.  

A copper nugget, maybe.
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Gagat Minerals




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PostPosted: Jan 11, 2018 18:09    Post subject: Re: Mineral identification.  

and I like this version: amphibole crystals (for example hornblende) exposed with aeolian processes (wind + sand erosion) - why not? :)
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Pete Richards
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PostPosted: Jan 11, 2018 21:04    Post subject: Re: Mineral identification.  

I think these are fossils, not minerals. Probably the burrows of baby sand worms....
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Collecting and studying crystals with interesting habits, twinning, and epitaxy
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alfredo
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PostPosted: Jan 11, 2018 21:29    Post subject: Re: Mineral identification.  

Accumulation or uncommon elements like copper is unlikely because Mars has no plate tectonics. So hard features like this are probably some Fe, Al or Si mineral? I'll bet on an iron mineral, or opal..

With no plate tectonics, no photosynthesis, so no colorful oxide-zone minerals.... I specialize in ugly grey, black and brown minerals, so I'd probably find a few things on Mars worth keeping, but all you "fine mineral" collectors will be very disappointed with the other planets. Be happy you live on the only planet with good rocks ;))
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