Topic: some days are pretty good
There are sssooo many sulfides. I would abandon my study of them but I am coming upon one of my favorites. The pyrite group.
Pyrite itself is iron sulfide. The proverbial fools gold. It fascinates kids and adults alike. The cubic shape of the crystals is amazing. I sell granulated pyrite masses and the perfect cubes from Logro?o Spain. Other minerals in the group are hauerite, penroseite, sperrylite (which is the only known natural compound of platinum) and laurite.
Please take a look at my website:
Hoffs Rock Shop