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-   -   at what temp does Adamantite burn? (https://forums.sjgames.com/showthread.php?t=195923)

Gwythaint 04-12-2024 10:27 PM

at what temp does Adamantite burn?
 
Assuming it can, of course. Or to put it another way, how much DR does it have? Typically only orichalcum can damage it.

malloyd 04-12-2024 11:36 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Gwythaint (Post 2521472)
Assuming it can, of course. Or to put it another way, how much DR does it have? Typically only orichalcum can damage it.

Whose version? As a purely fictional material it can do whatever you need it to for the purposes of the plot, and should you need it to be different for the next plot, well, clearly tiny variations in percentages of carbonite in the alloy, or a few parts per million contamination with red kryptonite, changes the properties drastically....

Fred Brackin 04-13-2024 12:18 AM

Re: at what temp does Adamantite burn?
 
If it's actually diamond-like it might ignite at c. 1000 C the way diamond does.

If it's more like a regular sort of rock that jsut happens to be as hard as diamond it might have no ignition point and jsut turn into lava at a high enough temp. Or if the magic part is domiant it might something magical instead of burning or melting.

Gwythaint 04-13-2024 02:27 PM

Re: at what temp does Adamantite burn?
 
the version I am using is from 4e and is created with essessential earth and earth to stone. orichalcum is essential earth and earth to metal. in DFRPG Kromm says a stupid amount of energy woyld be needed to cast these permanently.

I just found it on Appendix Z for golem creation-
Adamant has 12 DR and Orichalcum has 14

Anders 04-15-2024 05:51 AM

Re: at what temp does Adamantite burn?
 
So you need a 4d fire to put a dent in it. Wood fires burn at 1100 degrees (F) and do 1d damage. This would suggest maybe 4 times that - 4400 degrees (F).

benz72 04-16-2024 08:31 AM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Anders (Post 2521673)
So you need a 4d fire to put a dent in it. Wood fires burn at 1100 degrees (F) and do 1d damage. This would suggest maybe 4 times that - 4400 degrees (F).

0F is not the zero point for temperature. N.b. https://en.wikipedia.org/wiki/Rankine_scale

Anders 04-16-2024 01:51 PM

Re: at what temp does Adamantite burn?
 
mutters and consults calculator

5800 degrees?

whswhs 04-16-2024 05:09 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Anders (Post 2521815)
mutters and consults calculator

5800 degrees?

1100°F is 593°C, which is 866 K. Multiplying that by 4 gives 3464 K, which is 3193°C or 5779°F. So 5800°F is a plausible approximation.

Anthony 04-16-2024 05:24 PM

Re: at what temp does Adamantite burn?
 
There really isn't any justification for assuming that GURPS DR is meaningfully associated with temperature; energy weapon damage appears to be based on energy deposition per unit area, which is only very loosely correlated with temperature.

Anders 04-17-2024 06:30 AM

Re: at what temp does Adamantite burn?
 
Agreed. This comes completely from my nether regions. But it starts the conversation.

whswhs 04-17-2024 01:15 PM

Re: at what temp does Adamantite burn?
 
Why should we suppose that adamantite burns at all? Most substances whose names end in -ite are rocks or minerals; often they're the fully oxidized compound of one or several metals. So adamantite might not be subject to oxidation, but only to fusion, or maybe sublimation. That would put it in the highest class as far as flammability goes.

Anders 04-17-2024 01:27 PM

Re: at what temp does Adamantite burn?
 
Right. In Fantasy, Adamant is a kind of stone and probably shouldn't burn. It might decompose though, leaving whatever metal the oxide is made from behind. Maybe it's orichalcum-oxide?

Anthony 04-17-2024 01:32 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by whswhs (Post 2521930)
Why should we suppose that adamantite burns at all? Most substances whose names end in -ite are rocks or minerals

It's not a historically accurate term, and all modern usage (chiefly in RPGs and computer games) I'm aware of treats it as a metal. My best guess as to the origin is that D&D borrowed adamantium from Marvel and renamed it as lawsuit protection. None of which means it's particularly flammable.

Anders 04-17-2024 02:50 PM

Re: at what temp does Adamantite burn?
 
Right, adamantite isn't really a DFRPG thing, is it?

Appendix Z? Where is that?

pawsplay 04-17-2024 07:21 PM

Re: at what temp does Adamantite burn?
 
"Adamant" and all its variations have been in use for hundreds of years, and it all goes back to a poetic comparison to diamond.

Anders 04-18-2024 02:48 PM

Re: at what temp does Adamantite burn?
 
Sure, but in the context of RPGs I think it comes from D&D 3rd edition.

Anthony 04-18-2024 03:07 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by pawsplay (Post 2521967)
"Adamant" and all its variations have been in use for hundreds of years, and it all goes back to a poetic comparison to diamond.

Adamant and Adamantine have been in use for centuries, but checking google ngrams really doesn't show adamantite being a common term before the 1980s (adamantium has a longer history, Marvel did not come up with it).

https://books.google.com/ngrams/grap...19&smoothing=3
Quote:

Originally Posted by Anders (Post 2522068)
Sure, but in the context of RPGs I think it comes from D&D 3rd edition.

It's in AD&D. +5 armors are described in the DMG as "adamantite alloyed steel"

Anders 04-18-2024 03:50 PM

Re: at what temp does Adamantite burn?
 
Anyway, this is not getting us closer to an ignition temperature for adamantite.

The ignition point for metals depend among other things on the form the metal takes. A powder will burn a lot easier than a massive block. So the question is not well-defined.

I don't think we'll get closer to an answer than "at whatever temperature you say."

johndallman 04-25-2024 06:59 AM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Anthony (Post 2522072)
It's in AD&D. +5 armors are described in the DMG as "adamantite alloyed steel"

Further back than that:
Quote:

Originally Posted by Greyhawk, p.47
Armor/Shield +4: These items are magical in nature and made of mithral.
Armor/Shield +5: These items are magical in nature and made of a strange alloy known as “adamantite.”


Agemegos 04-27-2024 03:27 AM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Anders (Post 2521932)
Right. In Fantasy, Adamant is a kind of stone and probably shouldn't burn. It might decompose though, leaving whatever metal the oxide is made from behind. Maybe it's orichalcum-oxide?

I would be reluctant to mingle notions from alchemy and notions from chemistry in that way. Orichalcum might turn into brass. Better to say that metals don't burn, which any alchemist would have agreed with before about 1780.

Besides, Essential Stone is more likely a silicate than an oxide.

whswhs 04-29-2024 02:57 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Agemegos (Post 2523091)
I would be reluctant to mingle notions from alchemy and notions from chemistry in that way. Orichalcum might turn into brass. Better to say that metals don't burn, which any alchemist would have agreed with before about 1780.

Besides, Essential Stone is more likely a silicate than an oxide.

My own headcanon was that Essential Stone has properties like those of diamond, but is resistant to burning; Essential Air is 100% oxygen; Essential Water is just water, but with enhanced solvation properties; Essential Wine is straight ethanol. Though historically any distilled liquor would count as "essential"; that's why it's called "spirits."

Anthony 04-29-2024 03:21 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by whswhs (Post 2523475)
My own headcanon was that Essential Stone has properties like those of diamond, but is resistant to burning.

I would expect it to be opaque and I'd be dubious about it having cleavage planes -- it's stone, not gemstone.

whswhs 04-29-2024 09:40 PM

Re: at what temp does Adamantite burn?
 
Quote:

Originally Posted by Anthony (Post 2523477)
I would expect it to be opaque and I'd be dubious about it having cleavage planes -- it's stone, not gemstone.

I'll certainly stipulate the opacity. I had in mind density and hardness, in particular.


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