HYDROXIDES

.


Agrinierite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Monoclinic
Chemistry : (K2,Ca,Sr)U3O10 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Asbolane

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : (Co,Ni)xMn(O,OH)4 nH2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Becquerelite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : Ca(UO2)6O4(OH)6 8H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Billietite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxide
Crystal system : Orthorhombic
Chemistry : Ba(UO2)6O4(OH)6 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Boehmite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Orthorhombic
Chemistry : AlO(OH)
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Brucite

Class : Oxides and hydroxides
Subclass : Hydroxides
Crystal system : Trigonal
Chemistry : Mg(OH)2
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Chalcophanite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : ZnMn3O7 3H2O
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Compreignacite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : K2(UO2)6O4(OH)6 8H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Curite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : Pb3(UO2)8O8(OH)6 3H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Diaspore

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Orthorhombic
Chemistry : AlO(OH)
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Fourmarierite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : Pb(UO2)4O3(OH)4 4H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Gibbsite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Monoclinic
Chemistry : Al(OH)3
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Goethite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Orthorhombique
Chemistry : FeO(OH)
Rarity : Very common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Groutite

Class : Oxides and hydroxides
Subclass : Hydroxides
Crystal system : Orthorhombic
Chemistry : Mn3+O(OH)
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Heterogenite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Hexagonal
Chemistry : CoO(OH)
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Hummerite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Triclinic
Chemistry : KMgV5O14 8H2O
Rarity : Rare to very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Ianthinite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : UO25UO3 10H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Lepidocrocite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Orthorhombic
Chemistry : FeO(OH)
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Limonite

Class : Oxides and hydroxides
Subclass : Hydroxides
Crystal system : -
Chemistry : Fe2O3 3H2O
Rarity : Ubiquitous

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Lithiophorite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : (Al,Li)MnO2(OH)2
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Manganite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Monoclinic
Chemistry : MnO(OH)
Rarity : Common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Masuyite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : Pb3U8O27 10H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Metastudtite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : UO4 2H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Portlandite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : Ca(OH)2
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Pyrochroite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : Mn(OH)2
Rarity : Uncommon

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Quenselite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Monoclinic
Chemistry : PbMnO2(OH)
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Rameauite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Monoclinic
Chemistry : K2CaU6O20 9H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Rancieite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Hexagonal
Chemistry : CaMn4O9 3H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Schoepite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Orthorhombic
Chemistry : (UO2)4O(OH)6 6H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Studtite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Monoclinic
Chemistry : UO4 4H2O
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Todorokite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Monoclinic
Chemistry : (Mn,Ca,Mg)Mn3O7 H2O
Rarity : Quite common

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Tungstite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Orthorhombic
Chemistry : WO3 H2O
Rarity : Rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information

.


Vandenbrandeite

Class : Oxides and hydroxides
Subclass : Uranyl hydroxides
Crystal system : Triclinic
Chemistry : Cu(UO2)(OH)4
Rarity : Very rare

Size : µm / mm / cm / dm / m

   Click on the photo for more information