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


Spanish message board





Newest topics and users posts
04 Jul-09:52:35 Re: the mim museum in beirut, lebanon (Mim Museum)
04 Jul-04:35:07 Re: silvia's collection (Herwig)
04 Jul-03:56:03 Re: silvia's collection (James Catmur)
03 Jul-22:42:04 The mizunaka collection - fluorite (Am Mizunaka)
03 Jul-15:16:58 Re: collection of michael shaw (Michael Shaw)
03 Jul-13:28:16 Re: some rare phosphates from the democratic republic of congo and zimbabwe (Roger Warin)
03 Jul-11:14:11 Re: collection of michael shaw (Carles Millan)
03 Jul-10:12:23 Re: collection of michael shaw (Michael Shaw)
02 Jul-17:01:48 Some facts about uranium minerals (Silvia)
02 Jul-16:59:28 Uraninite on the alligator (Silvia)
02 Jul-16:40:02 The forgotten mines (Silvia)
02 Jul-16:04:59 The mizunaka collection - spessartine (Am Mizunaka)
02 Jul-14:07:28 Re: collection of michael shaw (Michael Shaw)
02 Jul-13:38:52 Cuprite on calcite from congo d. R. / #mvm (minerals - virtual museum) collection (Jordi Fabre)
02 Jul-10:23:30 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-10:06:48 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:29:48 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-09:12:17 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-09:02:38 Re: libyan desert glass structure (Craig Hagstrom)
02 Jul-08:49:56 Re: libyan desert glass structure (Marco Campos-venuti)
02 Jul-06:09:25 Re: libyan desert glass structure (James Catmur)
01 Jul-14:47:07 Re: libyan desert glass structure (Alfredo)
01 Jul-09:55:00 Re: libyan desert glass structure (Craig Hagstrom)
01 Jul-05:05:41 Re: libyan desert glass structure (Roger Warin)
01 Jul-01:07:57 The mizunaka collection - elbaite (Am Mizunaka)

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
122519


The time now is Jul 04, 2025 12:49

Access to the FMF Gallery
Search for an image   
Yesterday's most viewed photos
Yesterday's most
viewed images

 Last month's most viewed photos
Last month's
favorite topic
Search for a textSearch for a text   
A general guide for using the Forum with some rules and tips
The information provided within this Forum about localities is only given to allow reference to them. Any visit to any of the localities requires you to obtain full permission and relevant information prior to your visit. FMF is strictly against any illicit activities related to collecting minerals.
Found in Iowa please identify
  
  Index -> What is it? - Where is it from?
Like

View previous topic :: View next topic  
Author Message

Leone1986




Joined: 01 Aug 2020
Posts: 1
Location: Iowa

View user's profile

Send private message
PostPosted: Aug 04, 2020 12:13    Post subject: Found in Iowa please identify  
Found the large tan and blue with crystals barely showing in a farm field and the iron like non magnetic one in clay and sand area by a river but up top of bluff area which is all sand and clay also in Iowa

E5AD9E41-D25F-4914-9899-E1183427FDDD.jpeg
 Description:
 Viewed:  4278 Time(s)

E5AD9E41-D25F-4914-9899-E1183427FDDD.jpeg
2AAFCD5D-17CB-47C0-AAC3-23337328F7D9.jpeg
 Description:
 Viewed:  4271 Time(s)

2AAFCD5D-17CB-47C0-AAC3-23337328F7D9.jpeg
0A42EB12-1D65-4875-AF09-E2A5F1303C5B.jpeg
 Description:
 Viewed:  4297 Time(s)

0A42EB12-1D65-4875-AF09-E2A5F1303C5B.jpeg
278606C5-CF8B-42E0-89DC-0AC24A0CB5C4.jpeg
 Description:
 Viewed:  4262 Time(s)

278606C5-CF8B-42E0-89DC-0AC24A0CB5C4.jpeg
78A78299-90DF-4548-820D-421347D3E898.jpeg
 Description:
 Viewed:  4277 Time(s)

78A78299-90DF-4548-820D-421347D3E898.jpeg
0F4619A4-9E1E-4E88-AFB8-E79DE7240657.jpeg
 Description:
 Viewed:  4300 Time(s)

0F4619A4-9E1E-4E88-AFB8-E79DE7240657.jpeg
13156F9D-7732-4B45-9538-7098D2E05E8D.jpeg
 Description:
 Viewed:  4257 Time(s)

13156F9D-7732-4B45-9538-7098D2E05E8D.jpeg
7206979D-773D-41A7-8871-927C17055F59.jpeg
 Description:
 Viewed:  4273 Time(s)

7206979D-773D-41A7-8871-927C17055F59.jpeg
A41C92F0-8E81-4737-9BA1-99BF88174BAB.jpeg
 Description:
 Viewed:  4275 Time(s)

A41C92F0-8E81-4737-9BA1-99BF88174BAB.jpeg
Back to top
Reply to topic Reply with quote
Like
   

James Catmur
Site Admin



Joined: 14 Sep 2006
Posts: 1478
Location: Cambridge

Access to the FMF Gallery title=

View user's profile

Send private message
PostPosted: Aug 04, 2020 15:37    Post subject: Re: Found in Iowa please identify  
Might be (but you need to do tests to be certain [hardness and streak])

https://www.mineral-forum.com/message-board/viewtopic.php?p=19487#19487

Calcite in a septarian nodule for the first?

Goethite after pyrite for the second
Back to top
Reply to topic Reply with quote
Like
   

Firmo Espinar




Joined: 05 Apr 2017
Posts: 777
Location: Medellín, Colombia.

Access to the FMF Gallery title=

View user's profile

Send private message
PostPosted: Aug 04, 2020 15:56    Post subject: Re: Found in Iowa please identify  
Hi Leone.

Welcome to FMF.

You may also read and use:

A general guide for using the Forum with some rules and tips


The last two pics seem to be some kind of microcrystalline quartz, chert or agate.

Iowa is very large. A more limited geographic position would also help.

Thank you.
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> 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 2006-2025


Powered by FMF