Chemistry:Alpersite

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Alpersite
Alpersite, Slavíkite.jpg
Alpersite crystals (white) with slavíkite
General
CategoryMineral
Formula
(repeating unit)
(Mg,Cu)[SO
4
· 7H2O
Identification
ColorBlue, pale blue, whitish, turquoise
FractureIrregular/Uneven
TenacityBrittle
Mohs scale hardness2.5
|re|er}}Vitreous
StreakWhite
DiaphaneityTransparent
Specific gravity1.820

Alpersite (IMA symbol: Aps[1]) is a magnesium copper sulfate mineral with the chemical formula (Mg,Cu)[SO
4
· 7H2O
. It is named for United States Geological Survey geochemist Charles N. Alpers.[2]

References

  1. Warr, L.N. (2021). "IMA-CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode2021MinM...85..291W. 
  2. Alpersite on mindat.org