Can Diamonds Be Broken by a Hammer?

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Discussion Overview

The discussion centers around the question of whether diamonds can be broken by a hammer, exploring the properties of diamonds, their hardness, and brittleness. Participants also touch on methods for cutting diamonds, including tools and techniques used in gem cutting.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant suggests that diamonds can be broken by a hammer due to their brittleness, despite being the hardest known material.
  • Another participant notes that diamonds with major flaws may be easier to shatter with a hammer.
  • A brief mention of using a diamond saw as a method for cutting diamonds is made.
  • A participant with experience in gem cutting explains that while diamonds are hard, they are also brittle and can break along specific planes due to their cleavage, and that a sharp metal tool is typically used to shape them.
  • Reference to external information on diamond cutting is provided, highlighting the complexity of the process and the variation in hardness based on crystal orientation.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between hardness and brittleness, with some suggesting that diamonds can be broken while others provide context on their cutting methods and properties. The discussion remains unresolved regarding the ease of breaking diamonds with a hammer.

Contextual Notes

There are limitations in the discussion regarding the assumptions about diamond flaws, the definitions of hardness and brittleness, and the specifics of cutting techniques that may not be fully explored.

koolraj09
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Hello all.
I was inquisitive whether a diamond can be broken by a hammer. I think it can be, because diamond is the most hardest material found, and hence the most brittle which can crack when hit by a tough and comparably hard material.
If I am wrong can someone highlight how diamonds are cut to give desired shape?
Thanks for your Help :)
 
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if the diamond has major flaws (most of the natural diamonds do I believe), shattering it with a hammer shouldn't be too difficult.

As to produce desired shape, I think you can do that with laser
 
Diamond saw.
 
Well, I used to cut gems as a hobby (never diamond, but I read books covering this). Note that diamonds are reasonably brittle, but there is no general law that says something that is hard (resists scratching) must be brittle. There are substances much harder than sapphire that are also much tougher (opposite of brittle) than sapphire. Diamond crystals a have good cleavage. The crystal will break cleanly along certain planes. A sharp metal tool hit with moderate force is used to 'rough' out a size and shape exploiting cleavage. I was about to explain more about the process after cleaving, but found that wikipedia has a good description (note the point about hardness variation with crystal orientation; the process would be much less practical without this):

http://en.wikipedia.org/wiki/Diamond_cutting
 

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