pixiv Encyclopedia has updated the Privacy Policy as of May 28, 2024. Revision history
Minerals are the smallest units of material that make up the Earth (crust). A mass of minerals is called a rock.
With some exceptions, minerals are defined as follows and classified according to their chemical composition and atomic arrangement.
0/3000
About issues in articles
If you find something off in an article, please go ahead and edit it yourself.
If you see that someone else keeps doing illicit activities, please go to their profile and report them via the Report a problem button.
Reported successfully
We're collecting feedback to make pixiv Encyclopedia even better. If you have any comments or if you found any problems, please contact us.
Please note that we do not reply to Feedbacks. If you need help, please visit our Help Center.
Please do not include any personal information
Your feedback was sent successfully.
If you notice anything else, please send us your Feedback at any time.
