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Goldichite

KFe(SO₄)₂·4H₂O

Monoclino heart IMA grandfathered

Skład

Composizione (% in peso)

O

S

Fe

K

OOxygen53.5%
SSulfur17.9%
FeIron15.6%
KPotassium10.9%
HHydrogen2.2%

Czakry wtórne