Alpersite

{{Infobox mineral

| name = Alpersite

| boxwidth =

| boxbgcolor =

| image = Alpersite, Slavíkite.jpg

| imagesize =

| alt =

| caption = Alpersite crystals (white) with slavíkite

| struct image =

| struct caption =

| struct imagesize =

| struct2 image =

| struct2 caption =

| struct2 imagesize=

| SMILES =

| Jmol =

| category =

| formula = {{chem2|(Mg,Cu)[SO4]*7H2O}}

| IMAsymbol = Aps

| molweight =

| strunz =

| dana =

| system =

| class =

| symmetry =

| unit cell =

| color = Blue, pale blue, whitish, turquoise

| colour =

| habit =

| twinning =

| cleavage =

| fracture = Irregular/Uneven

| tenacity = Brittle

| toughness =

| mohs = 2.5

| luster = Vitreous

| streak = White

| diaphaneity = Transparent

| gravity = 1.820

| density =

| polish =

| opticalprop =

| refractive =

| birefringence =

| pleochroism =

| 2V =

| dispersion =

| extinction =

| length fast/slow =

| fluorescence =

| absorption =

| melt =

| Curie temp =

| fusibility =

| diagnostic =

| solubility =

| impurities =

| alteration =

| other =

| prop1 =

| prop1text =

| references =

| var1 =

| var1text =

| var2 =

| var2text =

| var3 =

| var3text =

| var4 =

| var4text =

| var5 =

| var5text =

| var6 =

| var6text =

}}

Alpersite (IMA symbol: Aps{{Cite journal|last=Warr|first=L.N.|date=2021|title=IMA-CNMNC approved mineral symbols|journal=Mineralogical Magazine|volume=85|issue=3 |pages=291–320|doi=10.1180/mgm.2021.43 |bibcode=2021MinM...85..291W |s2cid=235729616 |doi-access=free}}) is a magnesium copper sulfate mineral with the chemical formula {{chem2|(Mg,Cu)[SO4]*7H2O}}. It is named after United States Geological Survey geochemist Charles N. Alpers and was first described in 2006.[https://mindat.org/min-27526.html Alpersite] {{Webarchive|url=https://web.archive.org/web/20190326125709/https://www.mindat.org/min-27526.html |date=2019-03-26 }} on mindat.org