Question about different colored druzy

[mamabear]

So I have found clear, white, pink & grey druzy. On my way up the hill from fishing, I found this black druzy. My question is, would it be the same composition as smoky quartz? I find druzy to be such an interesting mineral because of all it's myriad colors & shapes.

 

[Cariboo5]

You have found some nicely colored specimens. I can't help out with your question...But I just gotta ask.....How did you do fishing ??

 

[mamabear]

Ha! I caught 2 large moth bass only 12" so I released them. Had another break the line. Not sure if it was bass or snapping turtle.
These are 2 my husband caught a wk ago.

 

[DDancer]

Considering the reds iron is a possibility. Magnesium would be a better candidate for the black coloration. I lean more towards magnesium as its often black and looking at the stones would be more likely considering the chert like aspect of the last picture.

 

[mamabear]

Is it magnesium that makes smoky quartz? (sorry I can't find my rock book)

 

[DDancer]

The smoky color is formed by irradiation of clear quartz by natural sources. In essence one can consider smoky quartz a burned crystal However they are not dangerous.

Not that one should believe everything on the internet but Wikipedia has an excellent breakdown on quartz and its many forms.

https://en.wikipedia.org/wiki/Quartz

Most of what I know comes from books long before the internet and a lot of bits and pieces I've piled up in storage over the years.

 

[mamabear]

Thanks DD!

 

[Eu_citzen]

I think DD nailed it.

 

[mamabear]

Thanks guys.