Oxide minerals and their features

The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal alloys 

Botryoidal Hematite

From Morocco

Diaspore

Chemical formula :  AlO(OH) 

Mohs Scale : 6.5 - 7  

Crystal System : Orthorhombic

Magnetite

Chemical formula : Iron(II,III) oxide 

Mohs Scale : 5.5- 6.5

Crystal System : Cubic

Konya,  Türkiye

Goethite

Chemical formula :  FeO(OH) 

Mohs Scale : 5, 5.5

Crystal System : Orthorhombic

Attepe Iron Mine - Adana, Türkiye

Goethite

Diaspore & Bauxite

Mihalıcçık Eskişehir, Türkiye

Hematite

Chemical formula : Fe2O3 

Mohs Scale : 5.5 - 6.5

Crystal System : Trigonal

Melting Point : 1538 C

Wulfenite

Chemical formula : PbMoO4 

Mohs Scale : 3

Crystal System : Tetragonal

From Mexico

Goethite

Manganese Dendrites

Manganese Dendrites

From Kütahya, Türkiye


Hematite