collectors update

David Epstein · Posted: Fri Nov 11, 2005 9:55 am Post subject: collectors update

An update from Teofilo Otoni. early in the year we saw what is being called " Paraiba Quartz" I have nor had, nor sold any. It had mushroom clould shaped copper based inclusions and was interesting. Also saw a 13 facetied crysoberyl this week. If you people like I can give posts.
David Epstein
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Gem Writer, book author (The Gem Merchant- How to be one-how to deal with one), Gem Sculptor, Consultant for gem buying and marketing - located in Brazil's gem trading center_Teofilo Otoni.

africanuck · Posted: Fri Nov 11, 2005 10:07 am Post subject:

Pictures, links and/or info? Yes please!

Martin · Valued Contributor Joined: 19 Oct 2005 Posts: 137

A local dealer here in SA has a treated quartz that has a Paraiba like colour, and was marketed as Paraiba quartz. They are actually selling the terminated crystals themselves, rather than faceted stones. I enquired regarding the crystal, and he said they were treated to produce the striking Paraiba colour in the crystal. He said he thought they had been treated with titanium but didn’t seem too sure. They did not look real at all.

He also mentioned that a natural quartz coming from Paraiba has Gilalite inclusions that produces a blue look quartz from the copper content in Gilalite. He said that the specimen he saw was included and not very pretty really, but definitely bluish.
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I always arrive late to the office, but I make up for it by leaving early...

Martin

Morning Dove · Posted: Mon Nov 14, 2005 12:18 pm Post subject:

Hey, David--I have your book; quite interesting Smile

.

Gemça · Posted: Tue Nov 15, 2005 7:48 am Post subject:

beadiste · Valued Contributor Joined: 17 Oct 2005 Posts: 178

The November issue of good ol' Lapidary Journal has a great article by John Koivula and John White about the Brazilian quartz with gilalite.

Best regards,
Chris

Martin · Valued Contributor Joined: 19 Oct 2005 Posts: 137

Gemça,

Thanks for the excellent photos and information - they look quite beautiful actually, and great shot of the inclusions...
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I always arrive late to the office, but I make up for it by leaving early...

Martin

Gemça · Posted: Wed Nov 16, 2005 4:43 am Post subject:

thks Martin,

I have done other photo (as promise) yesterday night of the other forms of Gilalite inclusion.
In fact they are much "mushroom like" ( as david say) than medusa.

They can be Blue or Green:

They grow allong a plan (surface) (Plan P: sur=on sous=under)

...
..like fluorite inclusion in madagasacn quartz

On the grown plan there are some "granulates / seeds".

Some Gilalite tufts have a "tail" (that can look like medusa as described in G&G)

Some tufts are empty with liquid / bubble in replacement

In majority case gilalite tufts look like "emispherical / half sphere" tufts with a flat face allong the plan of growing.

This is (to my sense) a beautiful inclusion that give another posibility of "blue quartz".

Note: I am interested to found quartz with blue papagoïte and/or quartz with bleu indicolite.
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Regards

Jean-Marie Arlabosse
GemInterest.com

Ux4 · Gemology Online Veteran Joined: 16 Oct 2005 Posts: 935

Beautiful specimines, gemca! Exellent photos. Something that I can look for at Tucson.
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Ux4 ... Mo' later

John M. Huff
CenSat Enterprises

africanuck · Posted: Fri Nov 18, 2005 2:58 am Post subject:

It's always such a pleasure to see your photos Gemca. And you're right, those do look more like a mushroom than a jellyfish.

Pyramid Imports · Posted: Tue Jan 10, 2006 8:29 pm Post subject:

Hello, For anyone interested I will have a nice collection of this material cabbed and faceted at the Tucson show. I will be at Pueblo Gem Show, Court Pavilion#32. If you cant make it to the show you can email me. Best regards,
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Daniel

ilarita · Posted: Mon Mar 20, 2006 6:00 pm Post subject:

Thanks to this stone, I found you all.

I was doing a search on the "new medusa quartz" that I saw on a jewelry (yes, I spell it wrong since I'm from the US, lol!) site. I love included quartz so immediately had to know all there is to learn about this!

Here is what I was looking at to begin with.....