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
19 Mar-08:59:33 Re: green seam. Looks like it in a state of decay. (Forrestblyth)
19 Mar-08:54:47 Re: green seam. Looks like it in a state of decay. (James Catmur)
19 Mar-08:36:45 Re: collection of michael shaw (Michael Shaw)
18 Mar-08:12:52 Green seam. Looks like it in a state of decay. (Ning)
18 Mar-06:47:13 Mineralogy & museums 10 - cardiff - 12th-13th august 2024 (Roy Starkey)
18 Mar-02:50:32 Re: collection from dany mabillard (Dany Mabillard)
17 Mar-01:57:58 Re: collection of volkmar stingl (Volkmar Stingl)
15 Mar-14:27:47 Re: collection of philippe durand (Philippe Durand)
15 Mar-13:49:04 Re: collection of firmo espinar (Firmo Espinar)
15 Mar-09:18:42 Re: collection of michael shaw (Michael Shaw)
15 Mar-03:45:43 The mizunaka collection - rhodochrosite (Am Mizunaka)
14 Mar-21:29:31 Re: monthly mineral chronicles, mineral guides and more... (Crocoite)
14 Mar-14:47:27 Re: collection of philippe durand (Jordi Fabre)
14 Mar-13:56:01 Re: collection of philippe durand (Philippe Durand)
14 Mar-11:24:43 Re: collection of philippe durand (Jordi Fabre)
14 Mar-08:55:22 Re: collection of michael shaw (Michael Shaw)
14 Mar-08:44:47 Re: the mim museum in beirut, lebanon (Mim Museum)
14 Mar-07:24:12 Re: collection of volkmar stingl (Volkmar Stingl)
14 Mar-02:30:15 The mizunaka collection - quartz (Am Mizunaka)
14 Mar-02:20:37 Re: collection of volkmar stingl (Tobi)
13 Mar-23:40:08 Re: collection of volkmar stingl (Volkmar Stingl)
13 Mar-14:22:58 Re: don lum collection (Don Lum)
13 Mar-14:02:43 Re: collection of philippe durand (Philippe Durand)
13 Mar-00:57:48 The mizunaka collection - quartz (Am Mizunaka)
12 Mar-07:36:06 Re: can you recommend a lab to analyse specimens (Luiz Oliveira)

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
111637


The time now is Mar 19, 2024 08:59

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.
Identification Please
  
  Index -> FOR BEGINNERS: What is it? Where is it from?
Like
2


View previous topic :: View next topic  
Author Message

Michelle Bacsik




Joined: 20 Dec 2020
Posts: 3
Location: Seattle

View user's profile

Send private message

PostPosted: Dec 20, 2020 11:17    Post subject: Identification Please  

Thank you for this opportunity to ask a question. This was given to me by a friend. Aside from the pictures, the only other information I have is that she found it along the Duwamish River in Seattle, (specifically, South Park) Washington. Any input will be greatly appreciated!


20201220_043126.jpg
 Description:
 Viewed:  5675 Time(s)

20201220_043126.jpg


Back to top
Reply to topic Reply with quote
Like
   

SteveB




Joined: 12 Oct 2015
Posts: 235
Location: Canberra

View user's profile

Send private message

PostPosted: Dec 20, 2020 13:56    Post subject: Re: Identification Please  

Please start by reading the sticky post at the top of the forum about what is needed before you post an unknown for identification.

https://www.mineral-forum.com/message-board/viewtopic.php?t=1936
Back to top
Reply to topic Reply with quote
Like
   

Kevin Schofield




Joined: 05 Jan 2018
Posts: 162
Location: Beacon NY

View user's profile

Send private message

PostPosted: Dec 20, 2020 15:45    Post subject: Re: Identification Please  

Michelle Bacsik wrote:
Thank you for this opportunity to ask a question. This was given to me by a friend. Aside from the pictures, the only other information I have is that she found it along the Duwamish River in Seattle, (specifically, South Park) Washington. Any input will be greatly appreciated!


Looks like a chunk of mica schist. Best expressed to the bottom right where you see the green-coloured rock with bright flecks.and white patches. The bright specks are mica, and white patches quartz.
The predominantly brown/white portion looks like vein quartz, somewhat iron-stained. It looks likely that this is the surface of a quartz vein along which the rock broke.

The tests suggested by Steve B should confirm the quartz.

_________________
Veni, Vidi, Emi
Back to top
Reply to topic Reply with quote
Like
   

Bob Harman




Joined: 06 Nov 2015
Posts: 765


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 20, 2020 16:29    Post subject: Re: Identification Please  

Agree with KEVIN S.

Found in western Washington State your example will be an igneous or metamorphic rock, most likely a metamorphic mica schist, iron oxide stained, and with a quartz vein component.

A note to all respondents--We should be respectful and pleasant to all, especially newcomers around this holiday time. Happy holidays, Bob
Back to top
Reply to topic Reply with quote
Like
1
   

Michelle Bacsik




Joined: 20 Dec 2020
Posts: 3
Location: Seattle

View user's profile

Send private message

PostPosted: Dec 20, 2020 21:01    Post subject: Re: Identification Please  

Thank you⁹ the direction, however I did read the information prior to posting my question. Unfortunately, I have very limited knowledge about minerals and what I do know, doesn't include the technical terms. I am here to educate myself on what I can by reading the dialogue between the other members and the experts, as well as look at the other sources this site has to offer. When I do have question, I am certainly not going to hesitate to ask.
Back to top
Reply to topic Reply with quote
Like
   

Michael Shaw
Site Admin



Joined: 30 Apr 2008
Posts: 2056
Location: Oklahoma


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 21, 2020 09:48    Post subject: Re: Identification Please  

Bob Harman wrote:


We should be respectful and pleasant to all, especially newcomers around this holiday time. Happy holidays, Bob


not just around the holiday season - ALL of the time.
Back to top
Reply to topic Reply with quote
Like
1
   

Pete Richards
Site Admin



Joined: 29 Dec 2008
Posts: 827
Location: Northeast Ohio


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 21, 2020 10:08    Post subject: Re: Identification Please  

Michelle-

A suggestion for you and others who may be in a similar situation of not knowing, and not knowing how to start knowing. Try to get a copy of John Sinkankas' book Mineralogy (some editions are Mineralogy for Amateurs), either as a used book or in a library. This is an excellent book noteworthy for covering a lot of the "technical stuff" under the assumption that the reader brings no prior expertise. It is a classic, and some things are a bit dated, but as a place to start I can think of none better.

Good luck, good learning!

_________________
Collecting and studying crystals with interesting habits, twinning, and epitaxy
Back to top
Reply to topic Reply with quote
Like
   

Michelle Bacsik




Joined: 20 Dec 2020
Posts: 3
Location: Seattle

View user's profile

Send private message

PostPosted: Dec 21, 2020 17:46    Post subject: Re: Identification Please  

My thanks to all of you who have offered great information! Happy Holidays!
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 2006-2024


Powered by FMF