Mineralogist needed

6 years 10 months ago #11185 by RocketDawg

Replied by RocketDawg on topic Mineralogist needed

I don't know what the cones or pyramids are, but I would guess a mud cone, or mud volcano. Should be round in that case though, but that's the closest Earthly phenomenon I could come up with.

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6 years 10 months ago #11186 by ??

Replied by ?? on topic Mineralogist needed

Perhaps a substance manifested its crystalline structure into the macro-scale. Does anybody know if any minerals have a similarly shaped crystalline structure?

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6 years 10 months ago #11187 by Smittysmit

Replied by Smittysmit on topic Mineralogist needed

After looking online for larger bismuth crystals, there are several of them out there that do have a square appearance as opposed to rectangular. They tend to look similar to the pyramid but the problem is bismuth crystals grow Inward and down whereas the pyramid is growing up and outward. These larger crystals are still not that large and can be held in your hand. They're actually really awesome looking crystals. www.bismuthcrystal.com

Todd, are you able to guesstimate the size of that pyramid?

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6 years 10 months ago - 6 years 10 months ago #11191 by Todd

Replied by Todd on topic Mineralogist needed

Todd, are you able to guesstimate the size of that pyramid?

I'd guess it's around 3 to 4 meters from the rover itself, based on the full mosaic of all the 34 L-Cam images taken on sol 1373. So around 16 cm tall from the visible base, maybe? I'm not sure "pyramid" would be the proper terminology, but it is roughly pyramidal in shape and the buttresses facing the camera appear quite unique. I'd really like to see the other side. It is a left cam wide image, so not quite as clear as it could be, but I believe this is all we have. I'll triple check and see if there's anything else.

Last edit: 6 years 10 months ago by Todd. Reason: link inserted

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6 years 10 months ago #11193 by RocketDawg

Replied by RocketDawg on topic Mineralogist needed

Smitty, I've gotta admit that I'd never heard of bismuth crystals. Those things are beautiful ... don't even look real. Thanks for the link ... I just spent some time looking it over.

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6 years 10 months ago - 6 years 10 months ago #11195 by ??

Replied by ?? on topic Mineralogist needed

There is a consideration of geologic formations possibly being very large crystalline structures in this forum HERE .The relevant parts of the video posted there are from about 2:08:25 to about 2:24:00.

Last edit: 6 years 10 months ago by ??. Reason: Corrected link. Reset font.

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6 years 10 months ago #11196 by dude

Replied by dude on topic Mineralogist needed

mars.jpl.nasa.gov/msl-raw-images/msss/00075/mcam/0075MR0005640000103728E01_DXXX.jpg
I knew I had an image of another pyramid close to the original one in question, but it took me a while to find it. this one also has segmented bricks & has the sphere on top.

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