We use cookies to show content based on your preferences. If you continue to browse you accept their use and installation. More information. >

FMF - Friends of Minerals Forum, discussion and message board
The place to share your mineralogical experiences

FMF English Forum is moderated by John S. White and Peter Megaw
 

Spanish message board






Newest topics and users posts
11 Dec-10:09:14 Percentage of minerals known (Tom Mazanec)
11 Dec-09:40:40 Re: minerals of dr congo, katanga. (Roger Warin)
11 Dec-07:03:51 Re: micro photos of inclusions in quartz (Zbhjzm)
10 Dec-21:45:33 Re: micro photos of inclusions in quartz (Zbhjzm)
10 Dec-20:33:07 Re: the mizunaka collection - fluorite (Am Mizunaka)
09 Dec-17:22:13 Re: franjungle collection (Franjungle)
09 Dec-15:38:46 Re: minerals of dr congo, katanga. (Roger Warin)
09 Dec-14:17:50 Re: munich show (mineralientage) 2017 (Roger Warin)
09 Dec-11:34:41 Re: collection of philippe durand (Philippe Durand)
09 Dec-10:45:58 Re: collection of heimo hellwig (Heimo Hellwig)
09 Dec-10:34:36 Re: collection of fiebre verde - chivor (#676) (Fiebre Verde)
09 Dec-10:07:25 Re: collection of fiebre verde - chivor (#676) (Fiebre Verde)
09 Dec-09:50:32 Re: collection of fiebre verde - chivor (#676) (Crosstimber)
09 Dec-09:47:10 Re: collection of michael shaw (Crosstimber)
09 Dec-04:08:58 Re: the mizunaka collection - fluorite (Tobi)
09 Dec-03:28:32 The mizunaka collection - mimetite (Am Mizunaka)
08 Dec-21:13:27 Re: collection of fiebre verde - chivor (#676) (Don Lum)
08 Dec-20:51:42 Re: collection of fiebre verde - chivor (#676) (Fiebre Verde)
08 Dec-15:22:53 Re: minerals for fossils (Fossil Collector)
08 Dec-15:20:25 Re: minerals for fossils (Fossil Collector)
08 Dec-15:16:11 Re: minerals for fossils (Fossil Collector)
08 Dec-14:56:01 Re: minerals for fossils (Peter Lemkin)
08 Dec-13:37:32 Re: minerals for fossils (Fossil Collector)
08 Dec-11:01:45 Re: minerals of dr congo, katanga. (Roger Warin)
08 Dec-10:57:30 Re: does turquoise ever come in other colors? (Lluis)

For lists of newest topics and postings click here


RSS RSS

View unanswered posts

Why and how to register

Index Index
 FAQFAQ RegisterRegister  Log inLog in
 {Forgotten your password?}Forgotten your password?  

Like
36458


The time now is Dec 11, 2017 10:22

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
Desert Rose, concretion, geode?
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
Like


View previous topic :: View next topic  
Author Message

ilzho




Joined: 31 Jul 2011
Posts: 13
Location: Dallas

View user's profile

Send private message

PostPosted: Feb 14, 2017 18:37    Post subject: Desert Rose, concretion, geode?  

Here's one I can't figure out.
I do not know the location of where it was found.
Any help is greatly appreciated.

Thank you,
David



Dr1.jpg
 Description:
 Viewed:  746 Time(s)

Dr1.jpg



dr2.jpg
 Description:
 Viewed:  750 Time(s)

dr2.jpg



dr3.jpg
 Description:
 Viewed:  746 Time(s)

dr3.jpg


Back to top
Reply to topic Reply with quote
Like
   

Bob Harman




Joined: 06 Nov 2015
Posts: 270
Location: Indiana


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Feb 14, 2017 20:42    Post subject: Re: Desert Rose, concretion, geode?  

Most probably a Midwest sedimentary geode from Indiana, Illinois or Kentucky. Most probably found in a creek bed or farm field, hence the name "field or stream geode". These are commonly quartz geodes like this one and the outer surface, which you see, looks like a cauliflower. The fresh hollow examples with secondary minerals are the ones collectors look for.

I suggest looking thru the pages of the thread on Indiana minerals in the area of "A Mineralogical Trip Thru the States of The USA" , specifically looking at the nearly identical examples of unopened geodes in that thread. BOB
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> FOR BEGINNERS: What is it? Where is it from?   All times are GMT - 5 Hours
Page 1 of 1
    

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


All pictures, text, design © Forum FMF 2006-2017


Powered by FMF