is this a meteorite? diamond?

[ersbel]

is this a meteorite? diamond?

 

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[Older The Better]

Looks like obsidian from the first picture

 

[TreasureCatto]

By the surface reflectivity, Black glass slag. Not a meteorite.

 

[galenrog]

Black glass slag is most likely, based on images. Obsidian comes in a distant second. What characteristics does it have that lead you to believe it is either a meteorite or diamond?

Time for more coffee.

 

[ersbel]

New photos, Is this a meteorite? diamond?

 

[ersbel]

What is your comment on the pictures I uploaded recently?

 

[ersbel]

Looks like obsidian from the first picture

What is your comment on the pictures I uploaded recently?

 

[DizzyDigger]

Ersbel..have a little patience..

Members here are from all over the world, and may not be
on the same time schedule as you.

I'm certainly no expert (but there are some here), but I don't see
anything in that stone that makes me think it's a diamond.

As for meteorite, I'll leave that up to the pro's. From what
I've read here in the past, it can be difficult to discern.

May I ask how this came to you? Did you find it metal detecting
or pick it up in a field? What size is it, and have you weighed it?

You don't say where you are, but it's the middle of the night
here in my state, and I know you won't hear from Galenrog until
he's had enough coffee..

 

[Older The Better]

I don’t hunt anywhere but my little corner of Kansas and tend to lead towards natural explanations, with the conchoidal fractures it’s likely a crypto crystalline material, my mind goes to obsidian, but maybe black glass slag is more common, couldn’t say since I don’t find either around here. Meteors wouldn’t show that kind of breakage pattern and it’s not a diamond which has a crystal habit that causes it to break along certain planes.

 

[ersbel]

Measure is around 3.8 cm.
Found in the field.
I haven't weighed it yet, I will let you know when I do.

 

[Red-Coat]

I see nothing which suggests either a meteorite or a diamond. You can easily satisfy yourself that it's not diamond by a hardness test if you have a quartz crystal, or a good quality steel file, or a masonry drill bit. Diamond will scratch all of them... the first two readily. It's obviously 'glassy' and completely the wrong appearance for any meteorite type. The numerous small vesicles suggest slag glass rather than obsidian and, for it to be obsidian, it would need to be from a locality which has seen geologically 'recent' volcanic activity. Where exactly did you find it, and in what kind of environment?

"In the field" is not a locality which helps in determination.

 

[galenrog]

My above statement stands, as does my above question.

Time for more coffee.

 

[smokeythecat]

Probably slag, HOWEVER, it would help to know what area of the country it was found in. A meteorite is extremely unlikely due to the fracture. No known diamonds from the US have been that big.

 

[GoDeep]

Remember rule 101 of Meteorites.

 

[ersbel]

Hardness measurement result: 28,5 HRC

 

[galenrog]

HRC is Hardness Rockwell scale C. This method is used to measure hardness of various steel alloys, particularly those used in knives, and will be meaningless on most materials other than steel. The proper method should be using the Mohs scale. Most glass will measure 5.5 to 7.0 Mohs. Try again.

When you come up with actual evidence showing it is either diamond or meteorite, please do let us know. I love being proven wrong. Education happens when we learn that we are wrong.

Time for more coffee.