Frit-Happens !

Lampwork => Lampworking Tip n Tricks => Topic started by: Redhotsal on July 10, 2008, 09:11:53 PM

Title: Alexandrite glass
Post by: Redhotsal on July 10, 2008, 09:11:53 PM
Does anyone know where/if you can get Alexandrite glass rods? "Real" alexandrite is dichromatic - i.e. the appearance changes according to the ambient light. A customer of mine wants some beads made out of this. I know it exists as I have seen lampwork beads in this colour and I even have alexandrite Swarovskis. Sure enough in bright sunlight they are a beautiful violet colour and in dark light with artificial lighting they turn a bluey green colour.

Fascinating stuff  - I think the glass may be Czech but that's about all I know......

Anyone??
Title: Re: Alexandrite glass
Post by: Shirley on July 10, 2008, 09:23:44 PM
Don't Vetrofond do a colour called alexamdrite? Not sure if it reacts the way the stone itself does. I think I got one rod of this in a multipack given out at a Plowden and Thompson course. I do have a Russian alexandrite ring though, and it is amazing ;D
Title: Re: Alexandrite glass
Post by: afina on July 10, 2008, 09:43:24 PM
Ornela has it. I don't know who carries Ornela (czech glass) in the UK, but I know some distrubutors in Germany, e.g. http://www.glassulger.de (http://www.glassulger.de) or https://www.ombos.net/shop/index.php?cat=KAT11&product=232021 (https://www.ombos.net/shop/index.php?cat=KAT11&product=232021).
Title: Re: Alexandrite glass
Post by: garishglobes on July 10, 2008, 09:43:46 PM
Yup, my Czech glass alexandrite beads do that. Makes it darned awkward to pack them under long-life light bulbs! They seem ok (light purple) under some bulbs and light blue under others.
Bullseye Neo Lavender transparent does it too. Not sure about the opaque one.
Title: Re: Alexandrite glass
Post by: julieHB on July 10, 2008, 09:49:09 PM
Hi,
found several us sites who sells it, but finally came across this:

http://www.cosma.cz/glasstechnik/

I don't know if it is of any help, have never heard of the glass, and good luck to you!!  ;D ;D (if you do make some beads with it please let us know if it is gorgeous  ;) )
Title: Re: Alexandrite glass
Post by: Isabelle on July 10, 2008, 10:02:13 PM
 Good old effetre do a blue/pink glass that changes depending on the light source - I'm sure Q stocks it.
Modified to say, just checked - Pale Lavender and Lavender Blue both do it - I've used both, and they're really nice.
Title: Re: Alexandrite glass
Post by: glassworks on July 10, 2008, 10:06:45 PM
i actually think that the alexandrite from vetrofond is a better colour shifter?.. i know that dora has used it for some of her cabs?..

8)
Title: Re: Alexandrite glass
Post by: beads-on-toast on July 10, 2008, 10:17:59 PM
i got my lavender from Martin
Title: Re: Alexandrite glass
Post by: Isabelle on July 11, 2008, 07:42:20 AM
 Oooh, I've put the vetro one on my list for next order "-))
Title: Re: Alexandrite glass
Post by: BeadyBugs on July 11, 2008, 09:32:12 AM
Hi Sal,

I've just been through my rod collection to check the number as it's one of my favourite colours, and the best looking one that I've got is Effetre 081 Dark Lavender.  A lovely pinky purple that goes a very different blue grey under fluorescent light.  I thought it was 082, but I think that's the vetrofond version, pretty sure I've used that as well.  Q's got the vet one, as Anna said Martin's got the Effetre one.

Here's a set of beads made a while ago from Dark Lavender, and I've just zapped the second image in Photoshop to show you roughly what happens under fluorescent light.
(https://i.ibb.co/rkxkQ1r/BAX039-Alexandrite-M-000.jpg)(https://i.ibb.co/G2ttRt9/BAX039-Alexandrite-M2.jpg)

And a more recent bead made with Bullseye Lavender - lurvely colour that also colour shifts.
(https://i.ibb.co/gtfyGN6/SLZ167-Lav-Zig-M.jpg)

Hope that helps.  :)

HP x

Title: Re: Alexandrite glass
Post by: beadysam on July 11, 2008, 09:34:57 AM
SAL I've got a spare rod of the 2 colour shifters I think (I'd have to check), but you are welcome to them to try before you go buy a bundle. Just let me know hun  ;)
Title: Re: Alexandrite glass
Post by: Redhotsal on July 11, 2008, 09:36:36 AM
Oh Thanks everyone!
I think I had a transparent lavender once - looked just like the Alexandrite colour. Never thought to check it to see if it changed. Helen - that's exactly what it does!
Sam - that would be great - I'll get back to you in about a week - I'm away on Sat. Perhaps I could swap something you'd like?
Title: Re: Alexandrite glass
Post by: silverlemon on July 11, 2008, 09:48:38 AM
I love this colour, I use it in loads of my designs.

basically I use Effetre, Bullseye and Vetrofond, from Tuffnells, Q, Creative Glass.

I've been told by Dickie that any glass in this type of shade will shift tint (be careful how you say that ;D) because of the way the colour absorbs and reflects the light wavelengths at this end of the spectrum. Right up your street Sal  ;).
If you want to know more of the geekiness I'll get Dickie to post ;)
Title: Re: Alexandrite glass
Post by: Redhotsal on July 11, 2008, 09:49:44 AM
It's good to get a bit of a geek fix. Thanks for that Sarah. How's the hip doing??
Title: Re: Alexandrite glass
Post by: Mary on July 11, 2008, 11:15:13 AM
The opaque Effetre lavender does it too, the hand pulled one with the pearly sheen. Got me really confused what this blue glass was, my energy saver bulbs change the colour!
Title: Re: Alexandrite glass
Post by: beadysam on July 11, 2008, 12:12:12 PM
No worries Sal, I'll chuck some in the post and we can sort something later! ;)
Title: Re: Alexandrite glass
Post by: amber0307 on September 12, 2008, 06:19:44 PM
Quote from: Helen P on July 11, 2008, 09:32:12 AM
Hi Sal,

I've just been through my rod collection to check the number as it's one of my favourite colours, and the best looking one that I've got is Effetre 081 Dark Lavender.  A lovely pinky purple that goes a very different blue grey under fluorescent light.  I thought it was 082, but I think that's the vetrofond version, pretty sure I've used that as well.  Q's got the vet one, as Anna said Martin's got the Effetre one.

Here's a set of beads made a while ago from Dark Lavender, and I've just zapped the second image in Photoshop to show you roughly what happens under fluorescent light.
(http://i154.photobucket.com/albums/s250/BeadyBugs/May%2008/BAX039-AlexandriteM1.jpg)(http://i154.photobucket.com/albums/s250/BeadyBugs/May%2008/BAX039-AlexandriteM2.jpg)

And a more recent bead made with Bullseye Lavender - lurvely colour that also colour shifts.
(http://i154.photobucket.com/albums/s250/BeadyBugs/May%2008/SLZ167-LavZigM.jpg)

Hope that helps.  :)

HP x



H where do you get your bullseye lavender from, and do you know what code it is?  :)

Thanks

x
Title: Re: Alexandrite glass
Post by: BeadyBugs on September 16, 2008, 11:37:19 PM
Hi Paula,

Sorry - I've only just found this post.  I bought a mixed 'Studio Pack' from Warm Glass at the Flame Off, but I've just had a root around their site, and am pretty sure this is the one:

Neo Lavender Shift (http://www.warm-glass.co.uk/Shop/ProductDetails.aspx?ProductId=1999)

I have to say, I've been very impressed with the colours and the way the rods handle.  And the clear is lovely, a bit like a stiffer Lauscha clear, no scumming and lovely clarity.

HP x 
Title: Re: Alexandrite glass
Post by: Sulis (Hazel) on September 17, 2008, 01:37:16 AM
I love Bullseye, but just have to make sure I remember to keep it completely separate from the 104. Rods are easy - stringers are trickier to remember. Well worth the hassle though, they do a fab sparkly green too, perfect for those christmas beadies.

Don't get me started on the whole lavender/blue shift....my kids still laugh about this...I spent about an hour once switching the lights on and off over this colour glass, fascinated by the colour shift - it's like magic, honest!! I oculdn't stop telling people. Energy saver bulb made it go blue, old style bulb made it lavender. Gawd, I think I'm going to have to go and do it again - I think maybe I have something wrong with my head!!!  xx

Title: Re: Alexandrite glass
Post by: glassworks on September 17, 2008, 06:53:05 AM
say nothing!!!!!......

;D ;D

it really is a stunning colour though - every batch we've had is ever so slightly different.. griet keeps a kilo of every batch of every glass i have ever stocked.. the mythical "alladins cave" shows so many slight variations in every colour made!...