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24 Feb-06:27:14 Re: i want to know this stone (Alshawani)
24 Feb-06:22:02 Re: collection of sante celiberti (Sante Celiberti)
24 Feb-06:18:23 Re: i want to know this stone (Alshawani)
24 Feb-06:16:19 Re: i want to know this stone (Alshawani)
24 Feb-06:10:16 Re: collection of jean suffert (Jean Suffert)
24 Feb-03:33:03 Re: i want to know this stone (James Catmur)
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23 Feb-23:03:09 The mizunaka collection - rhodochrosite (Am Mizunaka)
23 Feb-17:08:00 Re: i want to know this stone (Alfredo)
23 Feb-16:56:46 Re: i want to know this stone (Kushmeja)
23 Feb-16:44:26 Re: i want to know this stone (Alshawani)
23 Feb-16:16:37 Re: i want to know this stone (Bob Carnein)

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I want to know this stone
  
  Index -> What is it? - Where is it from?
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ALshawani




Joined: 08 Feb 2020
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Location: Africa

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PostPosted: Feb 23, 2021 16:12    Post subject: I want to know this stone  

I didn't recognize the stone yet, the density of stone from 2.60 to 2.99
The hardness is higher than 8.5



٢٠٢١٠٢٢٣_١٨٢٩٣٧.jpg
 Mineral: don't Know
 Locality:
West of Libya
 Dimensions: 4.5*3
 Description:
I didn't recognize the stone yet, the density of stone from 2.60 to 2.99
The hardness is higher than 8.5
 Viewed:  391 Time(s)

٢٠٢١٠٢٢٣_١٨٢٩٣٧.jpg


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ALshawani




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PostPosted: Feb 23, 2021 16:15    Post subject: Re: I want to know this stone  

This is the same type


٢٠٢١٠٢٢٣_١٨٣١٥٣.jpg
 Mineral: don't Know
 Locality:
West of Libya
 Dimensions: 4.5*3
 Description:
 Viewed:  389 Time(s)

٢٠٢١٠٢٢٣_١٨٣١٥٣.jpg


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Bob Carnein




Joined: 22 Aug 2013
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Location: Florissant, CO


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PostPosted: Feb 23, 2021 16:16    Post subject: Re: I want to know this stone  

It looks, to me, like a piece of quartzite. How did you measure the hardness?
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ALshawani




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PostPosted: Feb 23, 2021 16:44    Post subject: Re: I want to know this stone  

with Masonry Drill Bit
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kushmeja




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PostPosted: Feb 23, 2021 16:56    Post subject: Re: I want to know this stone  

Looks like carnelian or sard, which are basically just slightly different forms of Quartz. But they wouldn't be an 8.5 hardness and should be closer to 7. An 8.5 hardness is quite high, so I would try verifying the hardness with something aside from the masonry bit if you can.
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alfredo
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PostPosted: Feb 23, 2021 17:08    Post subject: Re: I want to know this stone  

Being as opaque as it is, I'd call it jasper, although the boundaries between quartz varieties are rather fuzzy.
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James Catmur
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PostPosted: Feb 24, 2021 03:33    Post subject: Re: I want to know this stone  

Does it scratch normal glass?
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ALshawani




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PostPosted: Feb 24, 2021 06:16    Post subject: Re: I want to know this stone  

I tried the knife and the screw and finally the bit of the drill, and they were all scratched by the stone. The thing that revived me the most is the hardness of the stone.
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ALshawani




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PostPosted: Feb 24, 2021 06:18    Post subject: Re: I want to know this stone  

Yes it scratches the glass
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ALshawani




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PostPosted: Feb 24, 2021 06:27    Post subject: Re: I want to know this stone  

The stone is translucent to translucent. Perhaps some external impurities are affecting the transparency


٢٠٢١٠٢٢٤_١٣٢٠٢٤.jpg
 Description:
 Viewed:  203 Time(s)

٢٠٢١٠٢٢٤_١٣٢٠٢٤.jpg


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