Message #37248

[Joey Silver / Si Zhouyi 義周司]

Dear Geoff,
 
     'Quartz' IS 'Rock Crystal'. I assume you mean, how to tell 'Quartz' from 'Lead Crystal'.
Really simple. If you keep your bottles in padded boxes, as I do, remove and immediately hold against your cheek. Quartz, a stone, is much colder than man-made Lead Crystal, and it is immediately noticeable when held against a cheek (unless you have a beard; then I'm stumped), the most temperature sensitive part of one's body easily accessible.
    If you display them all, like Peter, take the bottle, put it in a box for an hour or two. Then take out of box and follow instructions as above.
Best,
Joey

Thanks Joey

Where can I find your book Worlds in a Bottle? I don't have a copy.

Also I guess it is quartz, I really don't know how to tell quartz from rock crystal. I just know it's not ordinary glass.

Yes, the shape is odd. But this bottle is so small I can't call it a vase. The painting area is no more than 3 cm high.

I'm still interested to know what the title is, and what the painter's pen name is, at least. Can anyone help?

Geoff

PS Peter. I took the decision to go to Shenzhen at the last minute. Never can predict.