Peterchinite

Where it forms, where it's found

Type locality: Franklin Mine
Franklin
Sussex County
New Jersey
USA
41.1158°, -74.5875°

1recorded occurrences

Source · OpenStreetMap

Safety & handling

Crystallography

Crystal system: Monoclinic
Space group: C2/m
Cell parameters: a = 22.95(1) Å · b = 3.21(1) Å · c = 7.28(1) Å
Cell angles: β = 106.43(1) °
Ratio a:b:c: 1 : 0.140 : 0.317

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
30ZnZinc Zinc 5 65.380 326.900
54.22%
8OOxygen Oxygen 12 15.999 191.988
31.85%
33AsArsenic Arsenic 1 74.922 74.922
12.43%
1HHydrogen Hydrogen 9 1.008 9.072
1.50%
Total 602.882 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
30ZnZinc	Zinc	5	65.380	326.900	54.22%
8OOxygen	Oxygen	12	15.999	191.988	31.85%
33AsArsenic	Arsenic	1	74.922	74.922	12.43%
1HHydrogen	Hydrogen	9	1.008	9.072	1.50%
	Total	602.882	100.00%

Synonyms

Peterchiniet

In other languages

German: IMA 2023-050 · Peterchinit

Classification

Strunz

10th ed.

8.BH

8Phosphates, Arsenates, VanadatesClass
8.BPhosphates, etc., with additional anions, without H₂ODivision
8.BHWith medium-sized and large cations, (OH,etc.):RO₄ = 1:1Group
8.BHPeterchiniteSpecies

Group, growth & confusion

3 members

1 mineral

Chlorophoenicite(Mn,Mg,Zn)₃Zn₂(AsO₄)(OH,O)₆
Mineral
—

Literature, links & citation

Citations

2023Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2023) Newsletter 75. Mineralogical Magazine, 1-4 doi:10.1180/mgm.2023.76DOI: 10.1180/mgm.2023.76

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Peterchinite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/peterchinite-470885},
  note      = {Accessed 2026-05-11}
}