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Ilmenite

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Basics

Category

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Mineral Group

 

Chemical Formula

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Crystal System

Oxide  

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Ilmenite Group 

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FeTiO3 

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Hexagonal (Rhombohedral) 

Physical Properties

Normally thick and tabular crystal, often massive 

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Black 

 

Opaque 

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Sub-metallic 

 

Black to brownish red 

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None

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5.0-6.0 

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Magnetic 

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Appearance / Shape

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Colour

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Transparency

 

Lustre

 

Streak

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Cleavage

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Hardness (Mohr Scale)

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Other Physical Properties

Others

  • Accessory mineral in igneous rocks, e.g. gabbro and diorite 

  • In quartz veins and pegmatites 

  • In gneisses 

  • Associated with hematite and chalcopyrite 

  • Alluvial deposits due to resistant to weathering 

Source of iron and titanium 

Occurrence

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Other Chemical Properties

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Usage

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