Goethite HFeO2

Colour: Blackish brown to yellow or reddish brown
Streak: Brownish yellow, orange yellow
Hardness=5 - 5.5

Crystals prismatic and striated. Also thin tabular and scaly. Usually massive; reniform, botryoidal or stalactitic masses.
Streak and colour distinguishes goethite from haematite.

Another Mineral?