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Sterlinghillite
A valid IMA mineral species
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About Sterlinghillite
Formula:
Mn2+3(AsO4)2 · 3H2O
Originally, the mineral was thought to contain four H2O per formula unit.
Colour:
White, pale pinkish white, also very pale pink.
Lustre:
Waxy, Greasy, Silky
Hardness:
3
Specific Gravity:
2.94
Crystal System:
Monoclinic
Member of:
Name:
Named in 1981 by Pete J. Dunn after its discovery locality, the Sterling Mine, Sterling Hill, Ogdensburg, New Jersey, USA.
Occurs as tiny light white to pale pinkish white spherules on fracture surfaces, also irregular acicular crystals. Few verified specimens known from the type locality.
Unique Identifiers
Mindat ID:
3766
Long-form identifier:
mindat:1:1:3766:8
IMA Classification of Sterlinghillite
Approved
IMA Formula:
Mn2+3(As5+O4)2·3H2O
Approval year:
1980
First published:
1981
Classification of Sterlinghillite
8.CD.25
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
D : With only medium-sized cations, RO4:H2O = 1:2
8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
D : With only medium-sized cations, RO4:H2O = 1:2
40.3.5.3
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
3 : A3(XO4)2·xH2O
40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
3 : A3(XO4)2·xH2O
20.8.9
20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Slg | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA