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<blockquote data-quote="Tharkon" data-source="post: 5541808" data-attributes="member: 6674292">Hardness according to varying real world scales:[code]&nbsp; &nbsp; &nbsp; &nbsp; Mohs&nbsp;&nbsp; Vickers&nbsp;&nbsp; BrinellTin&nbsp; &nbsp; &nbsp; 1.5&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 51.0 MPaSilver&nbsp;&nbsp; 2.5&nbsp;&nbsp; 251 MPa&nbsp;&nbsp; 24.5 MPaGold&nbsp; &nbsp;&nbsp; 2.5&nbsp;&nbsp; 216 MPa&nbsp;&nbsp; 25.0 MPa&nbsp; Copper&nbsp;&nbsp; 3.0&nbsp;&nbsp; 369 MPa&nbsp; 874.0 MPaIron&nbsp; &nbsp;&nbsp; 4.0&nbsp;&nbsp; 608 MPa&nbsp; 490.0 MPaPlatinum 4.5&nbsp;&nbsp; 549 MPa&nbsp; 392.0 MPa[/code]It should be noted that Mohs scale is merely ordinal. And that the Vickers scale was developed later than the Brinell scale.Bronze is an alloy between copper and tin and is harder than copper, bronze replaced copper as the main metal used in the bronze age for this reason. Iron was used later, so bronze is probably somewhere between iron and copper.Electrum is an alloy between gold and silver and is harder than gold, but might not be harder than silver. I'd give electrum gold and silver the same hardness, seeing how little gold and silver differ, it's probably not detectable on the small scale in D&amp;D.It should also be noted that while all forms of steel and iron have hardness 10 in all cases in D&amp;D, these are some real values in Brinell scale:[code]Ausformed steel:&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 850-1200Martensitic steel:&nbsp; &nbsp; &nbsp;&nbsp; 600Bainitic steel:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 400Pearlitic steel:&nbsp; &nbsp; &nbsp; &nbsp;&nbsp; 350Cold-worked iron:&nbsp; &nbsp; &nbsp; &nbsp; 200Small-grain iron:&nbsp; &nbsp; &nbsp; &nbsp; 100Carbon-containing iron:&nbsp;&nbsp; 40Pure, single-crystal iron: 3[/code]So it really depends on what you do with it, and isn't really a property of the material. But that is a bit to complicated for D&amp;D purposes probably.If I had to give some numbers, guess I'd use these:Tin: 4Gold, Silver &amp; Electrum: 6 (I think they're still harder than wood)Copper: 7Bronze: 8Platinum: 10</blockquote>

[QUOTE="Tharkon, post: 5541808, member: 6674292"] Hardness according to varying real world scales: [code] Mohs Vickers Brinell Tin 1.5 51.0 MPa Silver 2.5 251 MPa 24.5 MPa Gold 2.5 216 MPa 25.0 MPa Copper 3.0 369 MPa 874.0 MPa Iron 4.0 608 MPa 490.0 MPa Platinum 4.5 549 MPa 392.0 MPa [/code]It should be noted that Mohs scale is merely ordinal. And that the Vickers scale was developed later than the Brinell scale. Bronze is an alloy between copper and tin and is harder than copper, bronze replaced copper as the main metal used in the bronze age for this reason. Iron was used later, so bronze is probably somewhere between iron and copper. Electrum is an alloy between gold and silver and is harder than gold, but might not be harder than silver. I'd give electrum gold and silver the same hardness, seeing how little gold and silver differ, it's probably not detectable on the small scale in D&D. It should also be noted that while all forms of steel and iron have hardness 10 in all cases in D&D, these are some real values in Brinell scale: [code] Ausformed steel: 850-1200 Martensitic steel: 600 Bainitic steel: 400 Pearlitic steel: 350 Cold-worked iron: 200 Small-grain iron: 100 Carbon-containing iron: 40 Pure, single-crystal iron: 3 [/code] So it really depends on what you do with it, and isn't really a property of the material. But that is a bit to complicated for D&D purposes probably. If I had to give some numbers, guess I'd use these: Tin: 4 Gold, Silver & Electrum: 6 (I think they're still harder than wood) Copper: 7 Bronze: 8 Platinum: 10 [/QUOTE]

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