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Sky Blue Mineral with about a 7 hardness

Posted by Daniel jacobs

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Daniel jacobs

Sky Blue Mineral with about a 7 hardness
June 11, 2012 04:57AM

Registered: 11 months ago
Posts: 84

Bought this 10 years ago at a rock and mineral store. Forgot the name of it!

I think it has a hardness of 7 because it couldnt scratch quartz and quartz couldnt scratch it back.

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Rock Currier

Re: Sky Blue Mineral with about a 7 hardness
June 11, 2012 08:36AM

Registered: 7 years ago
Posts: 8,473

Perhaps a piece of feldspar?

Rock Currier
Crystals not pistols.

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Jose Zendrera

Re: Sky Blue Mineral with about a 7 hardness
June 11, 2012 12:04PM

Registered: 2 years ago
Posts: 321

Can't see any cleavage plane and the fracture looks as conchoidal. Could be bluish quartz or beryl (aquamarine).

Josele

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Donald Peck

Re: Sky Blue Mineral with about a 7 hardness
June 11, 2012 02:10PM

Registered: 5 years ago
Posts: 1,168

It looks like beryl to me. Try scratching a piece of quartz with it. If it is beryl (H = 7.5 to 8) it should scratch the quartz, but with a bit of difficulty.

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Daniel jacobs

Re: Sky Blue Mineral with about a 7 hardness
June 11, 2012 03:18PM

Registered: 11 months ago
Posts: 84

WOW, I did a second scratch test. With enough pressure it did scratch the quartz.

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