The blodite group (or Blödite group) is a group of minerals with two (in most cases divalent) cations and two anions. The group includes

blödite Blödite or bloedite is a hydrated sodium magnesium sulfate mineral with formula: Na2Mg(SO4)2·4H2O. The mineral is clear to yellow in color often darkened by inclusions and forms monoclinic crystals. Blödite was first described in 1821 for an ...

Na₂Mg(SO₄)₂•4H₂O, leonite K₂Mg(SO₄)₂•4(H₂O),

anapaite Anapaite is a calcium–iron phosphate mineral with formula: Ca2Fe2+(PO4)2·4H2O. It is a mineral that typically occurs in cavities in fossil bearing sedimentary rocks. It is also found in phosphate bearing iron ores and rarely in pegmatites. It ...

Ca₂Fe(PO₄)₂•4(H₂O), schertelite (NH₄)₂Mg(PO₃OH)₂•4(H₂O,)

manganoblödite Manganoblödite is a rare manganese mineral with the formula Na2Mn(SO4)2·4H2O. Somewhat chemically similar mineral is D'Ansite-(Mn). Manganoblödite was found in the Blue Lizard mine, San Juan County, Utah, US, which is known for several relative ...

Na₂Mn(SO₄)₂•4(H₂O),

cobaltoblödite Cobaltoblödite is a rare cobalt mineral with the formula Na2Co(SO4)2·4H2O. Cobaltoblödite was found in the Blue Lizard mine, San Juan County, Utah, USA, which is known for secondary uranium minerals. Cobaltoblödite occurs intimately intergrown ...

Na₂Co(SO₄) ₂•4(H₂O),

changoite Changoite is a rare zinc sulfate mineral with the formula Na2Zn(SO4)2·4H2O. Chagoite was discovered in the San Francisco Mine near Sierra Gorda, Antofagasta, Chile. The mineral is a zinc-analogue of blödite, cobaltoblödite, manganoblödite an ...

Na₂Zn(SO₄)₂•4(H₂O)

References

Mineral groups {{mineral-stub