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Offline sashaTopic starter
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« on: February 06, 2010, 02:25:39 pm »
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Hi all,
Found this in Armenia a few month ago in mountainside, very far from any habitation. Contains near 70% Iron. I digged this from 0.4 m. What is it? Looking like meteorite? My MD is PI-type, designed by myself.

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« Reply #1 on: February 06, 2010, 02:36:13 pm »
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Good question Sasha, will a nail stick to it?

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« Reply #2 on: February 07, 2010, 03:42:50 am »
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Was at the bottom of a small mountain brook. Unfortunately, without any fixing nails.

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« Reply #3 on: February 07, 2010, 02:30:01 pm »
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Sasha, If nails don't stick to it is probably not Magnetite (load stone) an ore of iron which is easily confused with the iron nickel type of meteor.

Next try placing a magnetic compass near it. If it attracts the compass needle it is magnetic. it could be a iron nickel meteor. No other iron ore is magnetic besides magnetite.

If it is not magnetic it could still be a meteor or iron ore.

I suggest you wash it good with soap and water and a strong bristled brush and look at the surface for signs of melting. Indentations called "thumb prints" occur on the surface of some meteors due to melting when they enter the atmosphere.
That is about all I know about meteors. I am a mineral man.

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« Reply #4 on: February 08, 2010, 05:18:08 am »
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Gambol, nails don't stick to it because iron is not magnetized and is not a magnet. But external magnet stick to it very well. One of them I cutted using diamond saw, you can see metallic spots at its surface (see photo). The ball-shaped magnet fixed to surface very well. Can we meet "nuggets" of iron in nature?

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« Reply #5 on: February 08, 2010, 07:09:27 pm »
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Sasha, terrestrial iron does exists only as extremely rare tiny crystals but you won't dig it out of the bottom of a stream. If a magnet sticks to it it is a meteor or man made. The one place I have found man made iron that resembled a meteor was on a iron smelter slag heap.

Do you see any signs of melting?, Thumb print shaped shallow indentations. rounded corners, hollow pits that look like gas bubbles? Is there rock on one side and iron on the other?,


It is looking more and more like a meteor. If it is one it should bring A LOT of money. Don't scratch, break or saw into it you will decrease the value. You will have to have a expert certify it to be sure. There lots of hobby resources on the internet. If you want me to help just ask.

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« Reply #6 on: February 09, 2010, 04:17:24 am »
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Gambol, many thanks for the information. There is laboratory in Moscow:

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http://www.geokhi.ru/~meteorit/metengl-e.html

The Laboratory's main fields of research are meteorites, I think to appeal to laboratory  some day.
And what about fossils?
I live in Armenia, Yerevan. My home situated 1400 м above sea level, against the backdrop of Mount Ararat. I found many
 fossils nearest of my living place (see photo). The big part of  fossils are shelf calcium coral.
 At times I find silicified corals there, and cutting, treating and polishing is my hobby.
Gambol, what do you think about age of fossils?

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« Reply #7 on: February 09, 2010, 06:47:30 pm »
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Sasha, nice fossils, I would not hazard a guess. I see a bracheopod that suggests 400 million years ago but then they could be cretaceous 125 million. There is lots of Cretaceous limestone south of . Have you found any Trilobites?

We have silicified coral here. When I was a boy I collected arrow heads the native americans made from the coral. I found points you could see through. The native americans placed a high value on the coral and traded it
. I found it in Texas and South Carolina. Some craftsmen still make jewelry out of it when they can find it. There is only one place it comes from and that is the bottom of Tampa bay. Most of it is covered with silt now and you can't collect it. You have a good hobby with your lapidary but If I lived in  Armenia I would be studying History and looking for treasure. How strict are the laws for hunting treasure in Armenia?

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« Reply #8 on: February 10, 2010, 03:53:52 pm »
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Gambol, I haven't found Trilobites here, but i found silicified wood and twice silicified dinosaur-bone in different places nearest my living place. In other places of Armenia I found a lot of arrow heads the native armenians made from the black obsidian.

I like looking for treasure, Armenia is a museum under the open sky, rich of events.
But there are serious restrictions. Near monuments of culture to emerge with the detector in hand, and even more so with a shovel is prohibited, protected by the state. I think it's very right, to protect from damages. But there are many other places for hunting: ancient settlements, the caravan routes and etc. I have a not bad collection of antiquities, I am preparing and waiting hunting season now.

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« Reply #9 on: February 10, 2010, 05:30:18 pm »
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Quote:Posted by gambol1
Sasha, terrestrial iron does exists only as extremely rare tiny crystals but you won't dig it out of the bottom of a stream. If a magnet sticks to it it is a meteor or man made. The one place I have found man made iron that resembled a meteor was on a iron smelter slag heap.


This is incorrect. Iron based magnetite exists in nature and can be plentiful in some areas. The sample of the OP does not look like a meteorite, but rather a 

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"meteorwrong"
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magnetite



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