Safflorite
| Safflorite | ||
|---|---|---|
Specific gravity 6.9–7.3 | | |
| References | [2][3][4] | |
Safflorite is a rare cobalt iron arsenide mineral with the chemical formula (Co,Fe)As2. Pure safflorite is CoAs2, but iron is virtually always present. Safflorite is a member of the three-way substitution series of arsenides known as the loellingite group. More than fifty percent iron makes the mineral loellingite whereas more than fifty percent nickel and the mineral is rammelsbergite. A parallel series of antimonide minerals exist.
Safflorite along with the other minerals crystallize in the
specific gravity of 6.9 to 7.3. Twinning
is common and star shaped twins are frequently found.
It was first described in 1835 from the Schneeberg District, Ore Mountains, Germany. Safflorite occurs with other arsenide minerals as an accessory in silver mining districts. It alters to the arsenate erythrite in the secondary environment.
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References
- Minerals.net
- Mineral galleries
- Schumann, Walter (1991). Mineralien aus aller Welt. BLV Bestimmungsbuch (2 ed.). p. 223. ISBN 3-405-14003-X.