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
28 Mar-09:37:50 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-19:47:08 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Pete Richards)
27 Mar-16:15:44 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-15:18:59 Re: 2 unknowns co-occurring with caledonite, grand reef mine, az (Alfredo)
27 Mar-14:39:29 2 unknowns co-occurring with caledonite, grand reef mine, az (Cfrench58)
27 Mar-05:21:48 Re: the mim museum in beirut, lebanon (Mim Museum)
27 Mar-05:03:26 Re: trying to find information on rose/pink quartz and tourmaline associations. (Ning)
27 Mar-02:39:50 Re: the mim museum in beirut, lebanon (Tobi)
27 Mar-00:23:28 Re: collection of volkmar stingl (Volkmar Stingl)
26 Mar-00:53:41 Re: collection of volkmar stingl (Volkmar Stingl)
25 Mar-13:32:10 Re: collection of michael shaw (Michael Shaw)
25 Mar-00:25:58 The mizunaka collection - quartz (Am Mizunaka)
23 Mar-13:35:22 Re: collection of firmo espinar (Firmo Espinar)
22 Mar-08:32:28 Re: collection of michael shaw (Michael Shaw)
22 Mar-04:20:41 Re: the mim museum in beirut, lebanon (Mim Museum)
21 Mar-22:49:19 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:47:40 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-22:45:25 Re: green seam. Looks like it in a state of decay. (Ning)
21 Mar-15:34:23 Re: the mizunaka collection - quartz (Am Mizunaka)
21 Mar-14:35:08 Re: jim’s mineral collection (Jim Wilkinson)
21 Mar-14:15:36 The 4th phoenix heritage mineral show (phms) hosted by mineralogical society of arizona (m (Chris Whitney-smith)
21 Mar-04:36:10 Re: the mizunaka collection (Tobi)
21 Mar-04:11:47 Re: jim’s mineral collection (James Catmur)
20 Mar-23:34:15 The mizunaka collection - quartz (Am Mizunaka)
20 Mar-18:13:16 Re: jim’s mineral collection (Jim Wilkinson)

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
111802


The time now is Mar 28, 2024 16:24

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.
First attempt
  
  Index -> Micros & Macros - Images of Minerals
Like


View previous topic :: View next topic  
Author Message

Adrian Pripoae




Joined: 30 May 2014
Posts: 38
Location: Calgary


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Sep 06, 2014 17:25    Post subject: First attempt  

I decided to post this photo because of the rare character of the 3 conjoined quartz crystals. The shot was made using a Zeiss Stemi 2000 binocular microscope with a total magnification of 80X – the height of the picture is approx. 1.5 mm.


quartz_5.jpg
 Mineral: Quartz
 Locality:
Chinook Ridge, Alberta, Canada
 Dimensions: 1.3 mm x 0.9 mm x 0.8 mm
 Description:
I know, the picture is not perfect – I just tried my best but you can see crystallographic face and edges. The 2 smaller crystals are terminated, at one end in trigonal prisms. The larger one has the terminations removed. And now the surprise – This specimen is from a lower Cretaceous Conglomerate of the Cadomin Formation in the Deep Basin Zone of the Western Canadian Sedimentary Basin. The over 1 mm size of the larger crystal suggests that at the time of crystallization there was an open space sufficient for this specimen to grow. Small drusy quartz crystals are common in large pores in sedimentary rocks (both clastic and carbonates) as well as in association of different clay minerals making up the filling of veins and fractures. The specimen on the right represents one of the sides of the “void” and there are still several drusy quartz crystals attached. Drusy quartz crystals are rare in the sedimentary domain and a three crystal aggregate of over 1 mm in length is even scarcer Thanks for your attention an understanding for the quality of the photo. Adrian Pripoae.
PS. I still have the specimens, so any advice regarding photo techniques that might increase quality are welcomed.
 Viewed:  10991 Time(s)

quartz_5.jpg


Back to top
Reply to topic Reply with quote
Like
   

Adrian Pripoae




Joined: 30 May 2014
Posts: 38
Location: Calgary


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Oct 23, 2014 13:25    Post subject: Re: First attempt  

A second try: Picture represents the Cretaceous Bluesky Formation sandstone, made of endogenous quartz fragments and chert (chalcedony) fragments bounded together by a siliceous cement partially recrystallized. The black zones are bitumen filling up the interstitial pores.


Bluesky 2960_2.jpg
 Mineral: Quartz, Chert (Chalcedony) Kaolinite (?)
 Locality:
Kaybob area, Fox Creek, Alberta, Canada
 Dimensions: FOV 3.5 mm; 5 x magnification (Zeiss Stemi 2000)
 Description:
Manual Focus; stacked with Helicon Focus 6Canon Rebel 3Ti.
 Viewed:  10601 Time(s)

Bluesky 2960_2.jpg


Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> Micros & Macros - Images of Minerals   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