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Newest topics and users posts
10 Aug-13:45:15 Re: researching location information for old specimens. (Alfredo)
10 Aug-13:00:12 Re: researching location information for old specimens. (James Catmur)
10 Aug-11:27:15 Researching location information for old specimens. (Jesse Fisher)
09 Aug-00:00:46 Re: collection of volkmar stingl (Volkmar Stingl)
08 Aug-08:24:13 Re: 19 years of bugging you (and counting!) (Jordi Fabre)
08 Aug-08:00:25 Re: 19 years of bugging you (and counting!) (John Cornish)
08 Aug-04:35:34 Re: 19 years of bugging you (and counting!) (Fmf Forum)
08 Aug-04:24:21 Re: 19 years of bugging you (and counting!) (James Catmur)
07 Aug-09:37:27 Re: 19 years of bugging you (and counting!) (Jordi Fabre)
07 Aug-09:29:36 Re: 19 years of bugging you (and counting!) (Roy Starkey)
07 Aug-09:11:29 19 years of bugging you (and counting!) (Fmf Forum)
07 Aug-04:15:00 Re: collection of volkmar stingl (Volkmar Stingl)
07 Aug-01:24:19 Re: collection of volkmar stingl (Jordi Fabre)
06 Aug-23:28:11 Re: collection of volkmar stingl (Volkmar Stingl)
06 Aug-13:28:54 Baryte from moscona mine, spain / #mvm (minerals - virtual museum) collection (Jordi Fabre)
05 Aug-19:21:25 The mizunaka collection - tanzanite (Am Mizunaka)
05 Aug-08:36:29 Re: collection of michael shaw (Michael Shaw)
05 Aug-03:58:13 Re: #mvm (minerals - virtual museum) collection (Jordi Fabre)
05 Aug-01:22:01 Re: #mvm (minerals - virtual museum) collection (Roger Warin)
04 Aug-22:16:38 Re: #mvm (minerals - virtual museum) collection (Roger Warin)
04 Aug-07:18:53 Re: collection of volkmar stingl (Volkmar Stingl)
04 Aug-04:05:39 Re: the mim museum in beirut, lebanon (Mim Museum)
03 Aug-13:57:53 Re: libyan desert glass structure (Craig Hagstrom)
03 Aug-13:36:01 Malachite pseudo's (Silvia)
03 Aug-13:04:03 Wittichenite from cattle grid, australia / #mvm (minerals - virtual museum) collection (Jordi Fabre)

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  Topic: How does this occur?
novicetumbler

Replies: 3
Views: 8458

PostForum: Minerals and Mineralogy   Posted: Mar 30, 2010 20:36   Subject: Re: How does this occur?
Thank you, my curiosity is satisfied!
  Topic: How does this occur?
novicetumbler

Replies: 3
Views: 8458

PostForum: Minerals and Mineralogy   Posted: Mar 30, 2010 19:49   Subject: How does this occur?
I look at this and I can only assume that during formation some impurity like sand or something got into it and got extruded during cooling, forming these fibrous 'strands.'

I can tell you all day ...
  Topic: Odd inclusions in an unidentified mineral
novicetumbler

Replies: 5
Views: 12434

PostForum: Minerals and Mineralogy   Posted: Mar 27, 2010 22:03   Subject: Re: Odd inclusions in an unidentified mineral
cool, i would guess maybe feldspar or calcite; more probably feldspar. but who knows....

john

Thank you, I had calcite as my primary guess after taking an exacto knife tip to it and it scratche ...
  Topic: Odd inclusions in an unidentified mineral
novicetumbler

Replies: 5
Views: 12434

PostForum: Minerals and Mineralogy   Posted: Mar 27, 2010 16:41   Subject: Odd inclusions in an unidentified mineral
I just finished running this one stone I found through two tumblers and as I was cleaning it for pre-polish I noticed these extremely odd inclusions. Some are perfectly square, some are perfectly rect ...
 
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