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Started By
Message
How to tell crystal from glass
Posted on 7/15/14 at 6:42 pm
Posted on 7/15/14 at 6:42 pm
My grandmother passed a couple weeks ago and everyone in the family got heirlooms and memories. In the cleanup of her house, we found what appears to be glass bowls and decorative mugs. Nobody really wants them because they are pretty ugly but i took them just in case there might be crystal in the group.
My question is how can i tell between glass and crystal?
My question is how can i tell between glass and crystal?
Posted on 7/15/14 at 6:44 pm to Jibbajabba
Grandma dies.
Step 1: Ask the OT how much she's worth.
Step 1: Ask the OT how much she's worth.
Posted on 7/15/14 at 6:44 pm to Jibbajabba
Thought this was about drugs
Posted on 7/15/14 at 6:49 pm to Jibbajabba
rub the rim with a wet finger and see if it rings.
same advice hold true for figuring out if your gay.
same advice hold true for figuring out if your gay.
Posted on 7/15/14 at 6:54 pm to bradwieser
quote:
rub the rim with a wet finger and see if it rings.
same advice hold true for figuring out if your gay.
I passed! My wife will be pleased.
Posted on 7/15/14 at 7:05 pm to Winkface
quote:
Post pics.
....of your grandma.
Posted on 7/15/14 at 7:13 pm to Jibbajabba
Probably get more responses if you change the title to "How can you tell if it's Crystal or Glass?"
As far as your question goes, flick it. If it has a low pitched, thud sounding ping, it's glass. If it has a higher pitched, more musical sounding ping, it's crystal. Crystal is usually thinner than glass and is always clearer than than glass, which is more cloudy than crystal. Crystal also produces a prism when held to light where as glass does not. Crystal is heavier than glass. If you wet your finger and run it across the rim of the cup, crystal sings ( ) in a higher pitch. While glass does sing when doing the same, the pitch is distinctively different (similar to the sound when flicking it).
As far as your question goes, flick it. If it has a low pitched, thud sounding ping, it's glass. If it has a higher pitched, more musical sounding ping, it's crystal. Crystal is usually thinner than glass and is always clearer than than glass, which is more cloudy than crystal. Crystal also produces a prism when held to light where as glass does not. Crystal is heavier than glass. If you wet your finger and run it across the rim of the cup, crystal sings ( ) in a higher pitch. While glass does sing when doing the same, the pitch is distinctively different (similar to the sound when flicking it).
This post was edited on 7/15/14 at 7:25 pm
Posted on 7/15/14 at 7:14 pm to kmcmah1
quote:
Post pics
quote:
....of your grandma.
...when she was around 21.
Posted on 7/15/14 at 7:18 pm to drewnbrla
All you said was correct except that glass will not sing. It does because I do it all the time. I can make a jar sing as well.
Posted on 7/15/14 at 7:19 pm to drewnbrla
quote:
If you wet your finger and run it across the rim of the cup, crystal sings ( ). Where as glass does not.
Glass will produce a tone, but crystal will more easily I presume.
Posted on 7/15/14 at 7:20 pm to Martini
quote:
All you said was correct except that glass will not sing. It does because I do it all the time. I can make a jar sing as well.
quote:
Glass will produce a tone, but crystal will more easily I presume.
True for both but Crystal has an entirely different pitch than glass.
ETA: I edited first post for clarify and correction.
This post was edited on 7/15/14 at 7:22 pm
Posted on 7/15/14 at 7:40 pm to drewnbrla
This dude is supposed to be able to differentiate between different tones of glass and crystal?! Ha. Okay.
OP, do yourself a favor and bring it to a professional.
OP, do yourself a favor and bring it to a professional.
Posted on 7/15/14 at 7:52 pm to Jibbajabba
Shine a light through it.
If it makes colors, it's Crystal
If it makes colors, it's Crystal
Posted on 7/15/14 at 8:02 pm to Jibbajabba
Tap on it with a fork or something, like they do at weddings before giving a toast. If it rings kind of like a bell it is crystal. If it just makes a dull sound and there are no harmonics, it's glass.
Posted on 7/15/14 at 8:13 pm to Paige
quote:
Thought this was about drugs
You're funny
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