ID help for interesting crystal

Gem Related Discussion
1

Hello Everyone,

I would love some help identifying an interesting crystal I found about two years ago. The specific gravity is: 25.2g/9.3cm= 2.73913043 or 2.74g/cm³

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I’ve never seen anything like this. It’s got a shell around the clear crystals. Hoping it is familiar to someone!
Thank you in advance.
Hinde

2

My initial thoughts on it are calcite crystals inside limestone perhaps? Looking forward to hearing from others when you get a chance. Thanks :pray:

3

Here’s another one for identification. It’s more lavender than it looks in the photos but I think it is sugilite. The specific gravity checks out and I feel about 90% certain but I would like to hear others opinions.

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