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Let's Rock => Identifications of Materials => Topic started by: gemfeller on December 12, 2016, 01:35:36 PM

Title: Can Anyone ID This Material?
Post by: gemfeller on December 12, 2016, 01:35:36 PM

I'm pretty sure it's Mexican but I could be wrong.  It's pretty big, 35 x 40 mm. and was given to me as a slab. 

Title: Re: Can Anyone ID This Material?
Post by: Enchantra on December 15, 2016, 09:06:26 AM

Laguna?   I'm not even sure on that.

Title: Re: Can Anyone ID This Material?
Post by: jakesrocks on December 15, 2016, 09:58:19 AM

Colors & fortifications do look like Laguna.

Title: Re: Can Anyone ID This Material?
Post by: gemfeller on December 15, 2016, 10:39:30 AM

Laguna was my first thought because of the fortification colors and pattern but I haven't seen a lot of L. that has such intense sagenite brushes.  It usually occurs less prominently, at least based on what I've seen.  There are so many different Mex. localities I find it difficult to distinguish one from another.  Thanks for the suggestions.

Title: Re: Can Anyone ID This Material?
Post by: Ranger_Dave on December 15, 2016, 12:50:39 PM

I've been seeing the term "fortification" a lot lately... so I looked it up. I was thinking it was some kind of fortification as in supporting or reinforcing. Boy, was I wrong. It's fortification as in a fort with multiple walls. That makes more sense now.

Title: Re: Can Anyone ID This Material?
Post by: freeformcabs on December 15, 2016, 05:23:48 PM

Ive seen some Tabasco agates like that before. Which is a type of mexican agate like laguna with lesser fortification patterns and more moss inclusions.