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Skorpionite

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Skorpionite
Skorpionite
General
CategoryPhosphate mineral
Formula
(repeating unit)
Ca3Zn2(PO4)2CO3(OH)2·H2O
IMA symbolSkr[1]
Strunz classification8.DO.45
Dana classification43.5.20.
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupB2/b
Unit cella = 19.042 Å, b = 9.309 Å
c = 6.519 Å; β = 92.72°; Z = 4
Identification
Colorcolorless
Crystal habitneedle-like crystals elongated parallel to [001]; bladed, sword-shaped
Fractureirregullar/ uneven
Tenacitybrittle
Mohs scale hardness3+12
Lustervitreous
Streakwhite
Diaphaneitytransparent
Density3.15 g/cm3
Optical propertiesBiaxial (-)
Refractive indexnα = 1.588 nβ = 1.645 nγ = 1.646
Birefringenceδ = 0.057
2V angle15.0° (measured)
References[2][3]

Skorpionite (IMA2005-010) is a zinc phosphate mineral with chemical formula Ca3Zn2(PO4)2CO3(OH)2·H2O, originally found in the Skorpion Mine and named after it (Rosh Pinah, Lüderitz district, ǁKaras Region, Namibia).

References

[edit]
  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ "Skorpionite: Skorpionite mineral information and data". mindat.org. Retrieved 2015-11-25.
  3. ^ Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; et al., eds. (1990–2013). "Skorpionite" (PDF). Handbook of Mineralogy. Chantilly, VA: Mineralogical Society of America.