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
27 Jul-22:43:51 Re: collection of volkmar stingl (Volkmar Stingl)
27 Jul-13:17:17 Re: celestite geode in dolomite block? or what, halite? (Don Lapham)
26 Jul-15:38:37 Re: collection of firmo espinar (Firmo Espinar)
26 Jul-13:21:53 Re: collection of volkmar stingl (Volkmar Stingl)
25 Jul-16:30:28 Re: a mineralogical trip through italy by sante celiberti (Sante Celiberti)
25 Jul-11:09:26 Re: collection of volkmar stingl (Volkmar Stingl)
25 Jul-10:49:33 Re: celestite geode in dolomite block? or what, halite? (Corneldumitru)
25 Jul-08:13:07 Re: celestite geode in dolomite block? or what, halite? (Bob Morgan)
25 Jul-02:46:09 Re: celestite geode in dolomite block? or what, halite? (James Catmur)
24 Jul-14:52:13 Re: black, metallic, yellow oxide? (Linus)
24 Jul-14:41:03 Re: collection of michael shaw (Michael Shaw)
24 Jul-13:47:19 Celestite geode in dolomite block? or what, halite? (Corneldumitru)
24 Jul-12:18:05 Re: black, metallic, yellow oxide? (Johan Kjellman)
24 Jul-10:26:19 Re: collection of volkmar stingl (Volkmar Stingl)
23 Jul-18:40:43 Re: black, metallic, yellow oxide? (Bob Carnein)
23 Jul-17:36:31 Re: black, metallic, yellow oxide? (Linus)
23 Jul-17:34:00 Re: black, metallic, yellow oxide? (Linus)
23 Jul-09:37:34 Re: help identify this rock. Sapphire?? (James Catmur)
23 Jul-09:03:02 Re: unknown mineral from pikes peak pegmatite (Bob Morgan)
23 Jul-07:27:50 Re: black, metallic, yellow oxide? (Susan Robinson)
23 Jul-02:23:46 Re: mineral talks live - episode 41 - alan hart - ceo; gem-a, london, england, united king (Tobi)
23 Jul-02:20:06 Re: hillman hall of minerals and gems (Tobi)
23 Jul-02:15:45 Re: black, metallic, yellow oxide? (Tobi)
23 Jul-02:03:58 Re: help identify this rock. Sapphire?? (Tobi)
22 Jul-22:56:37 Re: help identify this rock. Sapphire?? (Steveb)

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
83910


The time now is Jul 28, 2021 11:11

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.
What is this?
  
  Index -> What is it? - Where is it from?
Like
1


View previous topic :: View next topic  
Author Message

Lyoung266




Joined: 16 May 2021
Posts: 1
Location: Wisconsin

View user's profile

Send private message

PostPosted: May 17, 2021 09:37    Post subject: What is this?  

I found this rock and it kind of looks like an agate but not sure need some help. Wanted to get it cut but I talked to someone who collects agates as well and said that I shouldn’t get it cut to find out so I’m thinking that it might be an agate.


6B2510E1-CCA6-4430-8077-05ADF6901860.jpeg
 Description:
 Viewed:  754 Time(s)

6B2510E1-CCA6-4430-8077-05ADF6901860.jpeg


Back to top
Reply to topic Reply with quote
Like
   

B.




Joined: 06 Nov 2015
Posts: 754

View user's profile

Send private message

PostPosted: May 17, 2021 09:56    Post subject: Re: What is this?  

Welcome to the forum.

First of all your photograph is not good.......too much focusing on the muddy gravel rather than the rock in question. Always put the dry specimen in question on a plain bland background with nothing else in the picture (including your hand).

Having said that, while "an agate" can have somewhat differing definitions, most consider it chalcedony/microcrystalline quartz with concentric banding or lacy patterns.

Your photo shows just the outside of a rounded rock, possibly a jasper type quartz due to its yellow brown color. To be called "an agate" your example would have to be cut or otherwise opened to show the proper chalcedony mineral and architectural pattern.
As it now is, your example is just a round yellow brown (iron stained?? or jasperoid quartz) rock/nodule, not otherwise specified (nos). Bob
Back to top
Reply to topic Reply with quote
Like
1
   

SteveB




Joined: 12 Oct 2015
Posts: 186
Location: Canberra

View user's profile

Send private message

PostPosted: May 18, 2021 00:02    Post subject: Re: What is this?  

First follow Bob’s advice.
Second provide a precise location where you found it. Thats vital, it could be a geode which often includes crsyatl and agate banding.but location is everything. Not a photos of wet gravel.
Just cut the damn thing, contact a local lapidary club for pricing and advice, examination of exterior to determine where/how to cut is important in geodes IF it if one. If its just a brown rock you’ll have two paper weights or book ends and some experience to check forum rules before wasting time with and artificially represented item and zero information.
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 2006-2021


Powered by FMF