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Iyoite

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About IyoiteHide

Formula:
MnCuCl(OH)3
Colour:
Pale green
Specific Gravity:
3.22 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
Named for Iyo province, the old name of the current Ehime prefecture.
Mn-Cu ordered analogue of botallackite.

The structure is layered and closely related to that of the associated and genetically similar misakiite.

Could not be synthesized.


Classification of IyoiteHide

Approved
Approval Year:
2013
First Published:
2017

Physical Properties of IyoiteHide

Colour:
Pale green
Density:
3.22 g/cm3 (Calculated)

Chemical Properties of IyoiteHide

Formula:
MnCuCl(OH)3

Crystallography of IyoiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/m
Setting:
P21/m
Cell Parameters:
a = 5.717(2) Å, b = 6.586(2) Å, c = 5.623(3) Å
β = 88.45(3)°
Ratio:
a:b:c = 0.868 : 1 : 0.854
Unit Cell V:
211.63 ų
Morphology:
Radial and dendritic aggregates consisting of pale green, bladed crystals.
Comment:
"same axial setting with botallackite"

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.7155(100)
2.8547(22)
2.8432(28)
2.5596(62)
2.5330(14)
2.4929(37)
2.0304(17)
2.0016(17)
Comments:
From Type Description.

Type Occurrence of IyoiteHide

General Appearance of Type Material:
Blades, in radial and dendritic aggregates
Place of Conservation of Type Material:
Type material is deposited in the collections of the National Museum of Nature and Science, Tsukuba, Japan, specimen number NSM M-43864
Geological Setting of Type Material:
Former Cu mine; in crevices of Mn ore containing native copper, as a result of reaction of seawater with the ore.
Associated Minerals at Type Locality:
Reference:
Nishio–Hamane, D., Momma, K., Ohnishi, M., Shimobayashi, N., Miyawaki, R., Tomita, N., Okuma, R., Kampf, A.R., Minakawa, T. (2017): Iyoite, MnCuCl(OH)3 and misakiite, Cu3Mn(OH)6Cl2: new members of the atacamite family from Sadamisaki Peninsula, Ehime Prefecture, Japan. Mineralogical Magazine: 81: 485-498.

Synonyms of IyoiteHide

Other Language Names for IyoiteHide

Japanese:伊予石

Relationship of Iyoite to other SpeciesHide

Member of:
Other Members of this group:
AtacamiteCu2(OH)3ClOrth. mmm (2/m 2/m 2/m) : Pnma
BotallackiteCu2(OH)3ClMon. 2/m : P21/m
ClinoatacamiteCu2(OH)3ClMon. 2/m
GillarditeCu3Ni(OH)6Cl2Trig. 3m (3 2/m) : R3m
HaydeeiteCu3Mg(OH)6Cl2Trig. 3m (3 2/m) : P3m1
HerbertsmithiteCu3Zn(OH)6Cl2Trig. 3m (3 2/m) : R3m
HibbingiteFe2+2(OH)3ClOrth.
KapellasiteCu3Zn(OH)6Cl2Trig. 3m (3 2/m) : P3m1
KempiteMn2+2(OH)3ClOrth. mmm (2/m 2/m 2/m) : Pnma
LeverettiteCu3Co(OH)6Cl2Trig. 3 : R3
MisakiiteCu3Mn(OH)6Cl2Trig. 3m (3 2/m) : P3m1
ParatacamiteCu3(Cu,Zn)(OH)6Cl2Trig. 3m (3 2/m)
Paratacamite-(Mg)Cu3(Mg,Cu)(OH)6Cl2Trig. 3 : R3
Paratacamite-(Ni)Cu3(Ni,Cu)(OH)6Cl2Trig. 3 : R3
TondiiteCu3Mg(OH)6Cl2Trig. 3m (3 2/m) : R3m
Unnamed (Cu-Zn Chloride Hydroxide)CuZnCl(OH)3Mon. 2/m : P21/m

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for IyoiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Nishio-Hamane, D., Momma, K., Ohnishi, M., Shimobayashi, N., Miyawaki, R., Tomita, N. and Minakawa, T. (2014) Iyoite, IMA 2013-130. CNMNC Newsletter No. 20, June 2014, page 552; Mineralogical Magazine, 78, 549-558.
Nishio-Hamane, D., Momma, K., Ohnishi, M., Shimobayashi, N., Miyawaki, R., Tomita, N., Okuma, R., Kampf, A.R., Minakawa, T. (2017): Iyoite, MnCuCl(OH)3, and misakiite, Cu3Mn(OH)6Cl2: new members of the atacamite family from Sadamisaki Peninsula, Ehime Prefecture, Japan. Mineralogical Magazine: 81: 485-498.

Internet Links for IyoiteHide

Localities for IyoiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Japan (TL)
 
  • Shikoku Island
    • Ehime Prefecture
      • Ikata (Sadamisaki Peninsula)
Nishio-Hamane, D., Momma, K., Ohnishi, M., Shimobayashi, N., Miyawaki, R., Tomita, N. and Minakawa, T. (2014) Iyoite, IMA 2013-130. CNMNC Newsletter No. 20, June 2014, page 552; Mineralogical Magazine, 78, 549-558.; Nishio-Hamane, D., Momma, K., Ohnishi, M., Shimobayashi, N., Miyawaki, R., Tomita, N., Okuma, R., Kampf, A.R., Minakawa, T. (2016): Iyoite, MnCuCl(OH)3, and misakiite, Cu3Mn(OH)6Cl2: new members of the atacamite family from Sadamisaki Peninsula, Ehime Prefecture, Japan. Mineralogical Magazine: 81: 485-498.
Mineral and/or Locality  
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