Translucent Green/Blue rock/gem???

[makton]

Posted this in the rock/gem forum and looking for ideas on what it is.
http://forum.treasurenet.com/index.php/topic,260228.0.html

Makton

 

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[IronSpike]

My guess would be translucent bottle glass that has been rounded smooth from years in the water. The rock/gem forum should be able to ID for you and if not glass I would agree with the aquamarine.

Maybe you can do a scratch test to see whether glass or rock?

 

[makton]

Thanks for the reply IronSpike. It certainly could be beach glass but would beach glass have a slight iron staining on the outside and would it be as heavy as a rock of similar size? I have no clue about this stuff and replies are always welcome.

Anyone suggestions for doing a hardness test for a beginner is greatly appreciated.

Thanks,
Makton

 

[CRUSADER]

My guess would be translucent bottle glass that has been rounded smooth from years in the water. The rock/gem forum should be able to ID for you and if not glass I would agree with the aquamarine.

Maybe you can do a scratch test to see whether glass or rock?

my first thought as well

 

[Michaelangelo]

We used to pick up what we called sea glass at the beach and looks exactly the same. Agree with Iron Spike.

 

[Bigcypresshunter]

Thanks for the reply IronSpike. It certainly could be beach glass but would beach glass have a slight iron staining on the outside and would it be as heavy as a rock of similar size? I have no clue about this stuff and replies are always welcome.

Anyone suggestions for doing a hardness test for a beginner is greatly appreciated.

Thanks,
Makton

It looks like beach glass to me as well. I dont have any suggestions but here is a link on the hardness scale. http://www.galleries.com/minerals/hardness.htm

 

[makton]

Thanks to all replies. I need to find some quartz for a scratch test just to be sure. I believe you are all right with the Beach glass.
I did a scratch test with a pocket knife and razor blade. Neither would scratch it but the rock would scratch them. It also scratches glass but if it is glass, why wouldn't it. I am not sure where glass falls in on the hardness scale.

Makton

 

[Bigcypresshunter]

Thanks to all replies. I need to find some quartz for a scratch test just to be sure. I believe you are all right with the Beach glass.
I did a scratch test with a pocket knife and razor blade. Neither would scratch it but the rock would scratch them. It also scratches glass but if it is glass, why wouldn't it. I am not sure where glass falls in on the hardness scale.

Makton

I dont know how to perform scratch tests but maybe someone else can help. According to the chart, glass is between 5 and 6. While a nail is 5, and a typical knife blade is the same as glass between 5 and 6, a good steel file is between 6 and 7. Aquamarine is between 7.5 and 8. http://www.mineralminers.com/html/aquminfo.htm

Im going to guess here and suggest to get a good file and try to scratch it.

 

[watercolor]

Your find looks like a thick piece of "beach glass".

I remember walking the Lake Michigan shorelines with my parents
when I was a kid and would collect pieces in various shapes and colors.

Here are several pieces I found while metal detecting the Jackson Park Beach
a couple of months ago. . . I just HAD to pick them up. . . ahh the memories

 

[AU24K]

Thanks to all replies. I need to find some quartz for a scratch test just to be sure. I believe you are all right with the Beach glass.
I did a scratch test with a pocket knife and razor blade. Neither would scratch it but the rock would scratch them. It also scratches glass but if it is glass, why wouldn't it. I am not sure where glass falls in on the hardness scale.

Makton

I'm not sure either but glass is basically silica or more commonly called sand.
Scott

 

[Bigcypresshunter]

I will also add that aqua is a common color of old bottles.

 

[rmptr]

Nice find !

A piece of tumbled glass like that is considered almost a semi-precious stone for jewelry purposes.

With an interesting wire-wrapping job, a nice pendant could be made with it.

Google 'sea-glass' and you'll come up with a whole lot of galleries that sell pretty things.

Best
rmptr

 

[Bigcypresshunter]

Thanks to all replies. I need to find some quartz for a scratch test just to be sure. I believe you are all right with the Beach glass.
I did a scratch test with a pocket knife and razor blade. Neither would scratch it but the rock would scratch them. It also scratches glass but if it is glass, why wouldn't it. I am not sure where glass falls in on the hardness scale.

Makton

I'm not sure either but glass is basically silica or more commonly called sand.
Scott

Window glass falls between 5 and 6 on the Mohs scale.

 

[IronSpike]

Maybe some good light and a magnifying glass. Check the piece for imperfections. Most gemstone will have some.