Could this be amber?

[RebeckaM]

I found this on Charmouth beach (west) UK, last week on the shoreline. It weighs 57 grams. It has a dark appearance but glows orange when backlit by bright light. Any identification ideas would be appreciated

Thanks! 

[RebeckaM]

More images:

[Randyw]

Give it the salt water test. Dissolve 7 teaspoons of salt into a medium sized cup of water. Gently place this into the solution. If it’s amber it will float if it’s not it won’t. There’s also the hot needle test but personally I prefer the salt water test. It doesn’t do any damage to the specimen .

[daves64]

Amber is very light in weight. At 57 grams I'd expect it to be much larger. An agate or water tumbled melted glass or plastic on the other hand could weigh that much and be that size.

[RebeckaM]

Unfortunately I tried the salt water test and it sank so definitely not amber. Thank you for the help!