Phosphates: Cacoxene
Diagnostic card.
Fe 4 (PO 4 ) 3 (OH) 3 * 12 H 2 O
Shingoniya hexagonal
Hardness 3-4
Specific weight 2,3-2,8
Broken fracture
Color: yellow, brown
Color in powder white, gray
Gloss silky, waxlike
It is represented by needle crystals, fibrous crusts and radiant aggregates of brown-yellow, golden-yellow, pinkish-yellow color.
Origin.
Occurs as a secondary mineral, present, for example, in pegmatites containing phosphates, in association with dufrenite, rockbridge, wavellite, strengite; Sometimes cacoxene is associated with limonite.
Place of Birth.
Kakoxen was found in the Rottoichen mine near Waldgirmes in Hessen, in Hunerkobel near Rabenstein in Bavaria (Germany), in Bohemia (Czech Republic), Morbihan in France, in Hellertown, Murz Hill and Nobles-Main in Pennsylvania (USA). In the pegmatites of the Hunerkobel field near Rabenstein, another phosphate, very similar to cacoxene, is found - xanthoxenite.
It forms yellow or light brown-yellow bristles of flattened crystals of monoclinic syngony. A beautiful rare collectible mineral, reminiscent of plants.
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