Type of crystal? Rock?

[Jfranko]

Can anyone identify this for me. It is very brittle and non magnetic.

I also found this little interesting one. Non magnetic, the outer green it very hard where as the white insiDE is slightly softer.

New to rocks and stuff and would be very pleased to know more about these two finds.

 

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[DDancer]

The brittle specimen appears to either be gypsum or calcite. An acid test would tell. As to the split pea looking one, kinda neat, I'm inclined to think its a jade with quartz thru the middle that is semi crystalline.

 

[IAMZIM]

I agree with DDancer on the brittle specimen, the fracturing looks alot like calcite.

 

[Jfranko]

Thank you both for answering. And yes DDancer the split pea one is definitely neat and remains my favorite out of all the rocks I collected this time.
I did a basic hardness test with my nail, a penny and an iron nail.
The first crystallized rock got scratched with iron nail.
The pea one, green part did not get scratched but the white part yes with the iron but still hard to do.
The green rock scratches the first rock.

So I'm figuring the first one is probably a calcite with I don't know what else in it to make the beige/orange tint
And the second one is stronger than iron, at least the green part is.
If it were jade would it not be somewhat translucent? I hold it up to the light and see nothing coming through.
Am I on the right path?

 

[TheOculus]

Sounds like you got it to me Jfranko! Good job.

Maybe the little green one is part of the Serpentine group and the white could be calcite or dolomite?

 

[DDancer]

The hardness is to high for serpentine in my opinion TheOculus. As to my inclination for calling it jade, or a jadeite, thats really just a call on the color and probability its a high silicate similar to chalcedony. A particularly hard form of malachite could be true as well. Making a call from pictures is difficult in the extreme unless there are distinctive features present in the photo and various tests described.
Not all jades are translucent, most are not in fact, however the more valuable forms are so your thinking is not incorrect.