Class: phosphate
Rarity: Very Rare Crystal:  crystal with a massive fibrous radiated mammillary drusy habit 
Colour: red brown black;   Streak: orange red gray;   Lustre: vitreous greasy;   Transparency: transparent; Cleavage: none;   Fracture: unknown;  
Hardness - between 3.5 and: 3.5;   Density - between 5.9 and: 6.2
Dana number: 714

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