List of specified cards with unique numbers under unique name
HENNOMARTINITE
NN
Card
Specie
Formula
Space Group
1.
1937
[1], at 245
o
C
SrMn
2
Si
2
O
7
(OH)
2
· H
2
O
C mcm
2.
1938
[2], at 22
o
C
SrMn
2
Si
2
O
7
(OH)
2
· H
2
O
P 2(1)cn