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Cleaning a hematite rose
  
  Index -> Conserving, Preparing and Cleaning Minerals
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Robson Vieira




Joined: 05 Jan 2017
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PostPosted: Jan 13, 2025 14:37    Post subject: Cleaning a hematite rose  

Hello everyone.
Recently I own a nice hematite rose with specular luster. Even though I'm happy with the sample I would like to know if I can enhance some spots that continues with iron oxide coating. Also, I have a hematite/goethite bubble cluster I wish to restore the luster. The two ones are on follow pics. Can I just use iron out on both? I fear to lose some shine of them.
Grateful for help.
Robson



20250113_162317.jpg
 Mineral: Hematite
 Locality:
Brumado, Bahia, Northeast Region, Brazil
 Dimensions: 7 x 5cm
 Description:
 Viewed:  651 Time(s)

20250113_162317.jpg



Screenshot_20250113_163223_WhatsApp.jpg
 Mineral: Goethite
 Locality:
Paraná, Brazil
 Dimensions: 10x7cm
 Description:
 Viewed:  651 Time(s)

Screenshot_20250113_163223_WhatsApp.jpg


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alfredo
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PostPosted: Jan 13, 2025 15:00    Post subject: Re: Cleaning a hematite rose  

No, do not use iron Out, oxalic acid, or hydrochloric acid! Any of those will attack the luster of hematite. Try mechanical methods, like a water gun, or a toothbrush with toothpaste. If those don't work, just leave it alone - It's beautiful enough as it is.
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Tobi
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PostPosted: Jan 14, 2025 05:36    Post subject: Re: Cleaning a hematite rose  

alfredo wrote:
[...]Try mechanical methods, like a water gun, or a toothbrush with toothpaste. If those don't work, just leave it alone - It's beautiful enough as it is.
I totally agree with Alfredo! Especially that 7 cm hematite rose from Brumado looks already lustrous and makes a very nice and good specimen!
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Robson Vieira




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PostPosted: Jan 14, 2025 07:30    Post subject: Re: Cleaning a hematite rose  

alfredo wrote:
No, do not use iron Out, oxalic acid, or hydrochloric acid! Any of those will attack the luster of hematite. Try mechanical methods, like a water gun, or a toothbrush with toothpaste. If those don't work, just leave it alone - It's beautiful enough as it is.

Wow friend. Thanks for the advice. It was very important for me. Thank you so much.
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Robson Vieira




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PostPosted: Jan 14, 2025 07:31    Post subject: Re: Cleaning a hematite rose  

Tobi wrote:
alfredo wrote:
[...]Try mechanical methods, like a water gun, or a toothbrush with toothpaste. If those don't work, just leave it alone - It's beautiful enough as it is.
I totally agree with Alfredo! Especially that 7 cm hematite rose from Brumado looks already lustrous and makes a very nice and good specimen!

Yeah, both of you are right. Im gratefull. Best regards from Brazil.
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