New Keris/Keris baru

Timo Nieminen · 31st May 2012, 06:45 AM

Quote:

Originally Posted by A. G. Maisey

In fact there is no absolutely guaranteed way to identify meteoritic material. In my opinion it probably has a slightly prickly feel, but who is to say that some other material does not have a similar feel?

It can be done well enough for practical purposes, if the material hasn't been heated enough to change the original crystal structure, and the meteorite has distinctive crystal structure from very slow cooling (i.e., Widmanstätten structure). E.g., this study of iron blades in Shang bronze axes. Widmanstätten structure is supposed to be able to survive cold working, and moderate heat. 1000C is too much.

A nice paper on the topic of trying to identify meteoric iron: E. Photos (1989): The question of meteoritic versus smelted nickel‐rich iron: Archaeological evidence and experimental results, World Archaeology, 20:3, 403-421.

A. G. Maisey · 31st May 2012, 09:17 AM

Timo

Yes, no problem at all identifying meteoritic material before its been used. None.

We're talking about identifying meteoritic material after it has been forge welded probably no less than 8 or 10 times, then combined with some other ferric material, then forge welded to a core, forged to shape, and carved.

This type of ID is a slightly different ball game.

Rasdan

I can answer your questions, and they are good and valid questions, but I'm probably going to use a lot of words in doing so. I don't have time right at the moment, but I'll post an answer as soon as I do have time to write it.

In the meantime, try to answer these questions:-

Are the sculptures of Michelangelo Buonarroti generally regarded as work of exceptionally high quality?

If yes, why is this so?

31st May 2012, 09:17 AM	#2
A. G. Maisey Member Join Date: May 2006 Posts: 7,051	Timo Yes, no problem at all identifying meteoritic material before its been used. None. We're talking about identifying meteoritic material after it has been forge welded probably no less than 8 or 10 times, then combined with some other ferric material, then forge welded to a core, forged to shape, and carved. This type of ID is a slightly different ball game. Rasdan I can answer your questions, and they are good and valid questions, but I'm probably going to use a lot of words in doing so. I don't have time right at the moment, but I'll post an answer as soon as I do have time to write it. In the meantime, try to answer these questions:- Are the sculptures of Michelangelo Buonarroti generally regarded as work of exceptionally high quality? If yes, why is this so?