Unnamed (Pb-Cu Iodide Hydroxide)
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Formula:
Pb2Cu+(OH)2I3
Colour:
Yellow
Crystal System:
Orthorhombic
A natural halocuprate(I) from the prolific Broken Hill, New South Wales, Australia. Likely a near-future new mineral.
As crystalline aggregates, 0.1 mm in size, associated with cuprite, galena, and marshite. Likely syngenetic (not postdating) with marshite.
The structure contains cubane-like [Pb4(OH)4]4+ core coordinated to 16 I- ions. Cu+ ions occur within edge-sharing tetrahedra in the iodide motif forming [Cu2I6]4- dimers. There are likely double Cu=Cu bonds.
No synthetic analogue is known. The find of the phase suggests an existence of a new class of halocuprates.
As crystalline aggregates, 0.1 mm in size, associated with cuprite, galena, and marshite. Likely syngenetic (not postdating) with marshite.
The structure contains cubane-like [Pb4(OH)4]4+ core coordinated to 16 I- ions. Cu+ ions occur within edge-sharing tetrahedra in the iodide motif forming [Cu2I6]4- dimers. There are likely double Cu=Cu bonds.
No synthetic analogue is known. The find of the phase suggests an existence of a new class of halocuprates.
Unique Identifiers
Mindat ID:
47536
Long-form identifier:
mindat:1:1:47536:1
Physical Properties of Unnamed (Pb-Cu Iodide Hydroxide)
Colour:
Yellow
Chemistry of Unnamed (Pb-Cu Iodide Hydroxide)
Mindat Formula:
Pb2Cu+(OH)2I3
Element Weights:
Crystallography of Unnamed (Pb-Cu Iodide Hydroxide)
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Fddd
Cell Parameters:
a = 16.7082(9) Å, b = 20.8465(15) Å, c = 21.0159(14) Å
Ratio:
a:b:c = 0.801 : 1 : 1.008
Unit Cell V:
7320 ų
Z:
32
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Unnamed (Pb-Cu Iodide Hydroxide)
mindat.org URL:
https://www.mindat.org/min-47536.html
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References for Unnamed (Pb-Cu Iodide Hydroxide)
Localities for Unnamed (Pb-Cu Iodide Hydroxide)
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Australia | |
| Welch et al. (2016) +1 other reference |
