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Brahin Stony-Iron Pallasite

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#1 scottinash

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Posted 31 January 2024 - 02:44 PM

My sliced specimen is not thin enough to shine light through but with a magnifying glass and/or microscope, the olivine crystals are fabulous!

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#2 lee14

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Posted 31 January 2024 - 03:40 PM

Brahin tends to be prone to rust. Your's looks great, whoever prepared your specimens did an excellent job.

 

Lee


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#3 scottinash

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Posted 31 January 2024 - 06:21 PM

Brahin tends to be prone to rust. Your's looks great, whoever prepared your specimens did an excellent job.

 

Lee

Thanks, Lee.   While this one remains in good condition, I did notice the inside of the bag does have some small flecks of rust after being stored away for a while.   I'm wondering if WD40, which I generally use to maintain, is appropriate for this specific type object.  Any suggestions?



#4 lee14

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Posted 01 February 2024 - 05:32 AM

Thanks, Lee.   While this one remains in good condition, I did notice the inside of the bag does have some small flecks of rust after being stored away for a while.   I'm wondering if WD40, which I generally use to maintain, is appropriate for this specific type object.  Any suggestions?

I've only had one Brahin slice, and when I sold it the condition was flawless, so my experience here is limited. A potential issue with pallasites is corrosion at the olivine/iron boundary, resulting in loose crystals. I think the advantage of WD40 is how well it penetrates those fine boundaries to inhibit atmospheric moisture from entering. I like G96 gun oil for irons, and while I've not used WD40 or transmission fluid, I've never heard of negative results from either. Unless the piece was inadequately prepared in the first place, which is certainly not the case in any of your specimens. Empirical results rule, just keep doing what you're doing.

 

Lee


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#5 scottinash

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Posted 01 February 2024 - 08:55 AM

Thank you, Lee! 




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