🔎 UNIDENTIFIED Marcasite

[Steve1236]

 

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[Steve1236]

So I was gonna write is this marcasite, geothite after pyrite or maybe silver but I somehow uploaded it before I had the chance lol. Any help from the pros would be much appreciated. Thanks in advance

 

[Steve1236]

So I was gonna write is this marcasite, geothite after pyrite or maybe silver but I somehow uploaded it before I had the chance lol. Any help from the pros would be much appreciated. Thanks in advance

 

[Clay Diggins]

Marcasite has a metallic luster and is white when cut and rapidly oxidizes to black with iridescence on the surface. I think it's much more likely considering your collecting region and the appearance in the photo that the coloring is due to Arsenopyrite.

Arsenopyrite is a very common mineral is one of the main reasons you should not lick your rock specimens.

Minerals of Which To Beware: Arsenopyrite | Rock & Gem Magazine

www.rockngem.com

 

[Steve1236]

Marcasite has a metallic luster and is white when cut and rapidly oxidizes to black with iridescence on the surface. I think it's much more likely considering your collecting region and the appearance in the photo that the coloring is due to Arsenopyrite.

Arsenopyrite is a very common mineral is one of the main reasons you should not lick your rock specimens.

Minerals of Which To Beware: Arsenopyrite | Rock & Gem Magazine

www.rockngem.com

Thanks Clay, I appreciate you. I was really hoping it was silver, that would be so cool lol. Thanks again!

 

[Steve1236]

Thanks Clay, I appreciate you. I was really hoping it was silver, that would be so cool lol. Thanks again!

Clay, another in The area but I doubt it is, molblydenite?, it sort of has those colors too.

 

[Clay Diggins]

Clay, another in The area but I doubt it is, molblydenite?, it sort of has those colors too.

It is a possibility. Does the rock fell smooth and slippery? Moly feels similar to graphite to the touch. It tends to crystallize in tabular sheets so the appearance is closer to mica than pyrite..

 

[Steve1236]

It is a possibility. Does the rock fell smooth and slippery? Moly feels similar to graphite to the touch. It tends to crystallize in tabular sheets so the appearance is closer to mica than

Cant tell by touch, It seems to be inclusions in the black plume and some just below it, but I took some shots under my loupe of the crystallization, maybe something will catch your eye to tell you one way or another what you think. Again, I appreciate your help Clay.

 

[Steve1236]

Cant tell by touch, It seems to be inclusions in the black plume and some just below it, but I took some shots under my loupe of the crystallization, maybe something will catch your eye to tell you one way or another what you think. Again, I appreciate your help Clay.

Could that black just be specular hematite 🤷‍♂️

 

[fuss]

Looks like some of it is exposed from your cut, can you try to scratch it to get a hardness, or get a streak color? looks a but like Hematite.