Goethite and vanadinite Morocco.
Chemical formula FeO (OH).
Vanadinite crystals are hexagonal prisms.
Goethite has a metallic luster, of blackish-brown.
Dimensions approximately 8x5.5x7 cm.
Weight 474 gr.
Goethite and vanadinite from Morocco.
Goethite occurs as stalactitic aggregates and concretions hummocky.
The crystalsof vanadinite are prismatic.
Chemical formula of goethite FeO (OH).
Dimensions 11x7x7 cm.
Weight of goethite and vanadinite 643 gr.