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Posted by calostemma on 29-Oct-2010 06:42 Report
crystal
Hi all ,  Is crystal jewellery   a gem stone or a certain type of glass,   or something else?
 
Replied by bargain-bin-treasures on 29-Oct-2010 07:27 (Ref 2219982) Report
Google it and you will get the full history of Crystal in it's varieties and forms.
Replied by issabella10 on 29-Oct-2010 07:59 (Ref 2219989) Report
nature.berkeley.edu/classes/eps2//wisc/Lect4.html

this is an educational reference link (not a website with items for sale)

go tothe bottom of the page for more info as well
Replied by calostemma on 29-Oct-2010 08:01 (Ref 2219991) Report
UUUrrumm  This is the jewelry forum  not the science forum   thanks
Carbonprincess   where are you?
Replied by issabella10 on 29-Oct-2010 08:15 (Ref 2219993) Report
How rude

It explains what Crystal is which is what you asked for .


No wonder the other member told you to go Google.
Replied by richbartim on 29-Oct-2010 08:29 (Ref 2219995) Report
Thank you issabella10 I thought it was very informative I too wanted to know the difference.
it was a bit scientific but that is what gems and crystals are all about. I just need the time to read through it again to absorb the info. ty 4 posting.
Replied by issabella10 on 29-Oct-2010 08:33 (Ref 2219998) Report
No worries I though calostemma would find it interesting as she usually goes 'indepth' on topics , but maybe not this time lol.
Replied by carbonprincess on 29-Oct-2010 08:33 (Ref 2219999) Report
 Aw shucks, someone wants me 

Calo, you sure know how to ask the tough questions.....

'Crystal' can be anything really. Sometimes it refers to the fact that it is a natural crystalline material and sometimes it simply describes the fact that it has been cut into a crystal like shape. By that I mean the material (could be glass, a composite, plastic, an inexpensive gem material, whatever) has been faceted - similar to the dangly bits on a chandelier. Sometimes it can be faceted glass with a film like coating to give it a mirror finish. You see this a lot in costume jewellery from the early 20th century.

Crystals like the Swarovski type are man made and have a high lead content, this enables the precise cutting and aids the sparkle factor. I believe they also contain silica and um...other bits.

So to say something is 'crystal' is insufficient and possibly misleading as many would assume that crystal refers to something natural. 

For the purposes of this question, I would say that it is best to assume that you are talking about 'fashion' rather than fine jewellery.

Cheers,

CP
Replied by richbartim on 29-Oct-2010 09:50 (Ref 2220031) Report
Thank you too carbonprincess that does help me.
Replied by carbonprincess on 29-Oct-2010 10:15 (Ref 2220043) Report
 Hey Issabella, I just wanted to say that you posted a really good resource.

I used several online tutorials to supplement school stuff when I was studying, but haven't seen this one before. Obviously I haven't been through every page, but from what I have seen it is comprehensive without being overly academic - good find!
Replied by calostemma on 29-Oct-2010 10:22 (Ref 2220045) Report
Thanks Carbonprincess,         exactly what I was wanting to know,
but I will read up on the other info as well
Sorry if i offfended anyone
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