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| Name: |
From the Greek κακός for
"bad" and ξένος for "guest" due to the fact that the
phosphorous content of cacoxenite lessens the quality of iron smelted from
ore containing it. |
| System: |
Hexagonal |
| Colour: |
Yellow to brownish ... |
| Type Locality: |
Hrbek Mine, Svatá Dobrotivá (St
Benigna), Beroun (Beraun), Central Bohemia Region, Bohemia (Böhmen; Boehmen),
Czech Republic | This particular one from La Paloma, Spain |
| Year of Discovery: |
1825 |
| Geological Setting: |
Common
accessory mineral in oxidation zone of magnetic and limonite iron ores,
novaculites, rarely in iron rich sediments and soils. |
| Luster: |
Silky |
| Diaphaneity (Transparency): |
Translucent |
| Colour: |
Yellow to
brownish yellow, reddish orange, golden yellow, deep orange, green; yellow in
transmitted light |
| Hardness (Mohs): |
4-Mar |
| Density |
2.2 - 2.6 g/cm3 |
| Crystal System: |
Hexagonal |
| Class (H-M): |
6/m - Di-pyramidal |
| Morphology: |
Crystals
crudely hexagonal, acicular [0001], with a hexagonal cross section at times
and indistinct pyramidal faces. Commonly in compact, concentric, spherical to
radial aggregates. In bundles, randomly fibrous; as coatings or inter-granular
cement. |
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