Rough Diamond

[epmie1]

I found this item a few years back. It looks like a rough diamond covered in metal ,3 cms in lenght approx. It can score glass which makes me think it may be some sort of diamond. Any help greatly appreciated. Thanks epmie

 

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[coinman123]

Judging by the shape of the formation, it is not a diamond, but a crystal quartz. I can see that the gem is like a rod, and the top of the gem is like a multiple sided pyramid, which quickly indicates crystal quartz

Also, anything harder than glass can score glass, and Crystal Quartz has a hardness of around 8, and most glasses are lower than that.
Diamond


Crystal Quartz

 

[austin]

Bingo coinman, good call...

 

[ATpro5]

Very odd... what's that on the bottom? This looks like a pin fire bullet someone shoved quartz into.

 

[epmie1]

Thanks for your help, Coinman 123 I appreciate it.

 

[Jim in Idaho]

I wonder if this is part of a glass-scoring tool?
Jim

 

[bigfoot1]

quartz crystals in brass ammo casings seems to be very popular...

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