Robertsite Carbonate-hydroxylapatite Apatite Image
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Apatite
,
Robertsite
,
Carbonate-hydroxylapatite
Mineral:
Apatite
:
Ca5(PO4)3(OH,F,Cl)
Robertsite
:
Ca6Mn+++9(PO4)9O6(H2O)6·3(H2O)
Carbonate-hydroxylapatite
:
Ca5(PO4,CO3)3(OH)
Comments:
Black crystals of Robertsite on pink carbonate-hydroxylapatite.
Location:
Tip Top mine, Custer, Custer County, South Dakota, USA.
Scale:
Not Given.
Copyright:
©
Lou Perloff / Photo Atlas of Minerals
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