Can someone please help me identify these rocks please ](https://i.stack.imgur.com/y28zy.jpg)
closed as off-topic by arkaia, Camilo Rada, Fred, trond hansen, Gimelist Apr 1 at 23:21
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Please review our rock identification guidelines to provide the missing information so that your question is both answerable and useful to new users." – arkaia, Camilo Rada, Fred, trond hansen, Gimelist
This is not a rock but a mineral. A rock is a conglomerate of several crystals, usually of different types of minerals. A crystal is one single systematic structure of atoms.
It would help to see the crystal from more than one perspective, but judging from the pictures available I suggest that is is gypsum.
Wikipedia: Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO. 4· 2H2O.
Plagioclase is also not unlikely.