FMF - Friends of Minerals Forum, discussion and message board

[DAni]

Hi all;

My name is Dani, I´m from Granada (Spain), and I will upload pictures of some specimens that are in my collection, I hope you like them and you find them interesting.

Greetings

[James Catmur]

Nice to see that wulfenite. More photos please

James

[Roger Warin]

I like them and I find them interesting. Original specimens and excellent photos.
Roger.

[gemlover]

Thank you very much. Love your specimens.

John

[DAni]

Thanks a lot for your comments. I am glad you like the pictures. I hope to upload many more.

DAni

[Pierre Joubert]

Hi Daniel. I would love to see some close-ups of the blue quartz, if possible. The colour is truly amazing!

[DAni]

Hi

Here there are some more photos of blue quartz.

Sorry about the quality of the pictures!!

DAni

[Carles Millan]

[John S. White]

A truly remarkable quartz. I have never seen a quartz with such an intense blue color. Has this locality produced many such crystals?

[Pierre Joubert]

Thank you for placing more photos of the blue quartz. It is unusual, amazing, and I suppose quite rare. I would'nt mind finding a pocket of those.

[supertxango]

Hi Dani!

Nice blue quartz specimens! I have added the mineral and the locality. Please send me a pm with the dimensions and I add them to the pictures also.

John, at this quarry it has been found beautiful blue quartz specimens as Dani has showed. You can see a selection at Spanish FMF Gallery

Regards,

Juan H

[supertxango]

Fixed! Dani has told me that both pictures are from the same specimen showed in picture number 6

Thanks Dani.

[Pierre Joubert]

I had a look at the Spanish link; a whole family of blue quartz, but few with such an intense colour as Jose's. Can someone tell me what causes this 'rare' blue colouring?

[supertxango]

Hi Pierre!

The blue coloring of quartz specimens from la Juanona is due to a blue amphibole. Colleagues from the Spanish Forum analyzed some specimens with the result that this amphibole belongs to the magnesioriebeckite-rebieckite series and is closer to the latter one. As Alfredo Petrov said, nowadays the analysis and identification of amphiboles is too difficult. To resolve if the aphibole is riebeckite or magnesio-riebeckite we will need more in depth analysis and as yet (as far I know) they are not doing it

There is a really good thread in the Spanish Forum explaining it (sorry it is in Spanish):

Zona Mindat - Cantera la Juanona, Málaga

[Pierre Joubert]

[Michael Shaw]

Jose, your blue quartz crystal is wonderful. There is an occurrence of blue quartz at a quarry in Cornog, Pennsylvania that I believe is also colored by an amphibole, but to my knowledge it does not occur in crystals or in such an intense blue color.
Michael

[DAni]

Thanks for answering supertxango.

Sorry to take so long to answer and thanks for your comment.

The blue quartz quarry, I think it's one of the best sites for this type of quartz crystals that can give this color, even now, although the outcrop that gave specimens of this type has been deeply watched by the collectors along the years .

DAni

[DAni]

Hi

2 photos of blue quartz, among them one from another Spanish locality with a more opaque hue.

DAni

[DAni]

Hi

More from España

DAni

[DAni]

Hi

More from Spain

DAni