My
periodic table poster
is now available!
Zippeite.
I think most of this rock is actual zippeite, but I don't know for sure.
Source:
eBay seller dr**zarkoff
Contributor:
Theodore Gray
Acquired:
3 June, 2005
Price:
$20
Size:
1.5"
Composition:
K
4
(
U
O
2
)
6
(
S
O
4
)
3
(
O
H
)
10
.
4
H
2
O
