NEWEST ROVER TO LAND ON MARS 8/6/2012

"Bright flecks" in the dirt. Could it be Mica?

http://mars.jpl.nasa.gov/msl/images/Grotzinger-3pia16233-br2.jpg

3 Replies

@rosborne979,

Quote:

"Bright flecks" in the dirt. Could it be Mica?

What would be the probable significance of that if it turns out to be mica?

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@rosborne979,

Looks like "gold."

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@rosborne979,

I see a coupla things on your pic. How did you make a circle around a focus point in one of your last pics?

I see one of the little rocks with apparently even edges like a crystal

We cant count out mica till the hand lens looks more closely.

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@Lustig Andrei,

Quote:

"Bright flecks" in the dirt. Could it be Mica?

Lustig Andrei wrote:

What would be the probable significance of that
if it turns out to be mica?

I join in Andy 's question, farmer and Rosborne.

David

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@Lustig Andrei,

Lustig Andrei wrote:

What would be the probable significance of that if it turns out to be mica?

I don't really know. I'm just guessing it might be Mica anyway, not even sure what it is yet.

But I think Mica is formed in the presence of water, for whatever significance that's worth (*if* it turns out to be Mica).

1 Reply

@rosborne979,

mica rarly is found all by itself, its so damn fragile in the open environment after just a few years. Itll turn to clay.
BUT, having said that, e cannot rule it out. There may be something unique going on that preserves it But those sediments make it look like there WAS a stream bed there

1 Reply

@farmerman,

Do u advise the members of A2K
to go and get ourselves some mica ?

David

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@OmSigDAVID,

I would not want to invest in something that is going to turn to clay.

1 Reply

@roger,

roger wrote:

I would not want to invest in something that is going to turn to clay.

I see; well, how about if with the farmer's advice
we can get some clay to turn into mica??

David

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@OmSigDAVID,

Quote:

Do u advise the members of A2K
to go and get ourselves some mica ?

Past performance is no guarantee of future growth. Always consult with your professional wealth management advisor.

(He'll probably say "What the **** ya wanna buy mica for-you gonna be building a stagecoach or a very large capacitor?")

1 Reply

@farmerman,

That 's more than I knew, farmer.
Did thay use mica in building stagecoaches ?

Is that how the West was won ?

David

1 Reply

@OmSigDAVID,

stagecoach windows were all "isinglas" which is mica

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@farmerman,

I see.

I 'm trying to remember what it is in pavement cement,
a small percentage of whose sidewalk flagstones sparkle & twinkle, if thay have that substance in it.

Almost all of sidewalks are dull and plain, lacking that substance.

Do u remember what it is ?

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@farmerman,

Cool. I didn't know that. Smile

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http://mars.jpl.nasa.gov/msl-raw-images/msss/00076/mcam/0076MR0571008000E1_DXXX.jpg

1 Reply

What causes all those little "pock marks" on the rocks?

http://mars.jpl.nasa.gov/msl/images/pia16237_MAHLI_Sol82_Burwash-br2.jpg

1 Reply

@rosborne979,

could be several reasons. Im gonna speculate that these are little nodules embedded in either an igneous or a sedimentary rock mass. The reasons for nodeules would obviously be different in each case. The nodules are then eroded by wind probably due to their differemt erosion properties than the massive matrix rock.

I could be all wet until we get a closer look at the whole rock mass.

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@rosborne979,

The top pic looks like a ropy lava with things they call blebs in the mass. These blebs seem to be gas pockets in the lava .

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Here's a "scoop" of the sand. It looks like much of the subsurface is a darker material. But I also think I see a band of lighter material in the edge of the scooped area.

http://mars.jpl.nasa.gov/msl/images/Vaniman-1pia16173_unannotated-br2.jpg

2 Replies

NEWEST ROVER TO LAND ON MARS 8/6/2012

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