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
20 Jan-02:00:25 Re: collecting focuses and how they can change (Andreas Gerstenberg)
19 Jan-23:46:36 Re: a bit on the economics of being a mineral dealer (Bob Kerr)
19 Jan-23:26:28 Re: help with mineral found, san rocendo canyon, mexico (Peter Megaw)
19 Jan-23:17:14 Help with mineral found, san rocendo canyon, mexico (Yazzyenna)
19 Jan-18:13:19 Re: collecting focuses and how they can change (Don Lum)
19 Jan-15:08:21 Re: a bit on the economics of being a mineral dealer (Pierre Joubert)
19 Jan-14:00:11 Re: andreas gerstenberg collection (Tobi)
19 Jan-13:56:49 Re: favourite fluorites? (Tobi)
19 Jan-13:39:16 Re: a bit on the economics of being a mineral dealer (Peter Lemkin)
19 Jan-13:14:06 Re: a bit on the economics of being a mineral dealer (Pierre Joubert)
19 Jan-12:26:51 Re: locality for this probable natrolite (?) specimen? (John Medici)
19 Jan-12:13:41 Re: a bit on the economics of being a mineral dealer (Pete Modreski)
19 Jan-11:43:30 Re: unsure about japan law twin, please help. (Roger Warin)
19 Jan-11:38:59 Re: andreas gerstenberg collection (Jordi Fabre)
19 Jan-11:19:56 Re: andreas gerstenberg collection (Andreas Gerstenberg)
19 Jan-07:29:09 Re: franjungle collection (Franjungle)
19 Jan-00:06:45 Re: locality for this probable natrolite (?) specimen? (Pete Modreski)
18 Jan-23:34:38 Re: unsure about japan law twin, please help. (Bob Morgan)
18 Jan-20:52:32 Re: locality for this probable natrolite (?) specimen? (Pete Richards)
18 Jan-20:32:44 Re: locality for this probable natrolite (?) specimen? (Rweaver)
18 Jan-20:02:27 Re: locality for this probable natrolite (?) specimen? (John Medici)
18 Jan-19:09:28 Locality for this probable natrolite (?) specimen? (Pete Modreski)
18 Jan-18:56:47 Re: favourite fluorites? (Colin Robinson)
18 Jan-18:55:42 Re: unsure about japan law twin, please help. (Dennis Beals)
18 Jan-16:30:16 Re: collection of michael shaw (Crosstimber)

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
38173


The time now is Jan 20, 2018 02:19

Search for a textSearch for a text   

A general guide for using the Forum with some rules and tips
Im loving this Beryl
  
  Index -> Minerals and Mineralogy
Like
11


View previous topic :: View next topic  
Author Message

texasdigger




Joined: 22 Oct 2015
Posts: 49
Location: texas


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 07, 2016 17:47    Post subject: Im loving this Beryl  

I moved recently and came across an aquamarine I had misplaced. Its growing on me and I've had it on my desk for the past 2 months. It is different than all of my other specimens. Its not high quality in terms of clarity, but its form is fantastic and Im hoping you guys can help me better describe this crystal. It has some veil inclusions and there are also some black inclusions straight down the center barely intruding into the crystal itself. The double termination and unequal axes are intriguing to me (and hopefully a clue to a more exact location). I have not been able to find anything similar. I was told its from Brazil but nothing more specific. Please help me out with more accurate descriptions (and possibly a more exact location) and any comments as to this habit and its rarity.Thanks all.
FYI the color is sea green down the c axis and yes, that piece of wood is painted silver...



IMAG1322.jpg
 Mineral: Beryl (variety aquamarine)
 Locality:
Brazil
 Dimensions: 22.5mm x 11.25mm x 64.5mm
 Description:
 Viewed:  2333 Time(s)

IMAG1322.jpg



IMAG1317-2.jpg
 Description:
 Viewed:  2350 Time(s)

IMAG1317-2.jpg



IMAG1324-1-1.jpg
 Description:
 Viewed:  2348 Time(s)

IMAG1324-1-1.jpg



IMAG1313-1-1.jpg
 Description:
 Viewed:  2355 Time(s)

IMAG1313-1-1.jpg



IMAG1323.jpg
 Description:
 Viewed:  2346 Time(s)

IMAG1323.jpg


Back to top
Reply to topic Reply with quote
Like
3
   

marco campos-venuti




Joined: 09 Apr 2014
Posts: 181
Location: Sevilla


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 07, 2016 17:59    Post subject: Re: Im loving this Beryl  

As Rock Currier said, when you don't know the location of a mineral, the most probably it is from Minas Gerais.
Back to top
Reply to topic Reply with quote
Like
2
   

texasdigger




Joined: 22 Oct 2015
Posts: 49
Location: texas


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 07, 2016 18:06    Post subject: Re: Im loving this Beryl  

Here is the other termination more clearly.
Obviously aquamarine is very common and this is clearly a hexagonal crystal. Im wondering since its not a perfect hexagon, but rather perfectly twice the length over width, or being double terminated make this a rare piece. Im having trouble finding anything resembling it to compare it to.



IMAG1314.jpg
 Description:
 Viewed:  2342 Time(s)

IMAG1314.jpg


Back to top
Reply to topic Reply with quote
Like
2
   

Fiebre Verde




Joined: 11 Sep 2013
Posts: 682
Location: Paris Area


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 08, 2016 16:44    Post subject: Re: Im loving this Beryl  

Flattened hexagons with a 2/1 ratio are certainly not common.
This in an example from Colombia.
As Rock Currier could have said, when you don't know the location of an emerald, the most probably it is from Muzo.



IMG_7969nb.JPG
 Mineral: Beryl (variety emerald), Calcite
 Locality:
Muzo mining district, Western Emerald Belt, Boyacá Department, Colombia
 Dimensions: flat basal termination=12.5x5.5mm
 Description:
 Viewed:  2136 Time(s)

IMG_7969nb.JPG


Back to top
Reply to topic Reply with quote
Like
4
   

bob kerr




Joined: 13 Nov 2011
Posts: 176
Location: Monroeville PA


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 08, 2016 20:12    Post subject: Re: Im loving this Beryl  

and - as Rock Currier could've said - when you don't know the locality of an aquamarine, it's from Gilgit, Pakistan.

actually - I have a somewhat similar doubly terminated aqua that is indeed from Gilgit, Pakistan.

bob
Back to top
Reply to topic Reply with quote
Like
   

Matt_Zukowski
Site Admin



Joined: 10 Apr 2009
Posts: 585
Location: Alaska


Access to the FMF Gallery title=

View user's profile

Send private message

PostPosted: Dec 08, 2016 23:58    Post subject: Re: Im loving this Beryl  

Although most beryl xtals are about equant perpendicular to the c-axis, it is not super uncommon to find xtals that are wider in one dimension like yours. Double termination is more rare too, but not that rare, and enhances its value. It looks like there is some etching on one of the terminations.

Nice xtal.
Back to top
Reply to topic Reply with quote
Like
   
Display posts from previous:   
   Index -> Minerals and Mineralogy   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 2006-2018


Powered by FMF