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Droninoite

A valid IMA mineral species
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09877930017272471585779.jpg
Droninoite

Pescia stream, Rovegno, Genoa, Liguria, Italy
08089740017272100037857.jpg
Droninoite

Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
04683450017272471599165.jpg
Droninoite, etc.

Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
04652160017272353112503.jpg
Droninoite

Pescia stream, Rovegno, Genoa, Liguria, Italy
08089740017272100037857.jpg
Droninoite

Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
04683450017272471599165.jpg
Droninoite, etc.

Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
08616210017272353145172.jpg
Droninoite

Pescia stream, Rovegno, Genoa, Liguria, Italy
08089740017272100037857.jpg
Droninoite

Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
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About DroninoiteHide

05620140017272100039579.jpg
Dronino meteorite

Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
Formula:
Ni6Fe3+2(OH)16Cl2 · 4H2O
Colour:
Dark green to brown
Hardness:
1 - 1½
Specific Gravity:
2.857 (Calculated)
Crystal System:
Trigonal
Name:
Named for type locality, the Dronino meteorite.
Chemically quite similar to akaganeite. Also compare muonionalustaite; paratacamite-(Ni) and nickelbischofite.

Slightly untypical stoichiometry as for the hydrotalcite group member.


Unique IdentifiersHide

Mindat ID:
35951
Long-form identifier:
mindat:1:1:35951:3

IMA Classification of DroninoiteHide

IMA status:
Approved
IMA Formula:
Ni6Fe3+2Cl2(OH)16 · 4H2O
Approval year:
2008
First published:
2008

Classification of DroninoiteHide

Strunz-mindat (2026):
3.DA.60

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
A : With Cu, etc., without Pb
Dana 8th ed.:
10.6.16.

10 : OXYHALIDES AND HYDROXYHALIDES
6 : AmBn(O,OH)pXq

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
DrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of DroninoiteHide

Colour:
Dark green to brown
Comment:
Dark gray-green under microscope
Hardness:
1 - 1½ on Mohs scale
Density:
2.857 g/cm3 (Calculated)

Chemistry of DroninoiteHide

Mindat Formula:
Ni6Fe3+2(OH)16Cl2 · 4H2O
Element Weights:
Element% weight
Ni40.067 %
O36.406 %
Fe12.707 %
Cl8.067 %
H2.752 %

Calculated from ideal end-member formula.
Elements listed:
Cl, Fe, H, Ni, O - search for minerals with similar chemistry
Common Impurities:
Fe(II)

Crystallography of DroninoiteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3m
Cell Parameters:
a = 6.206(2) Å, c = 46.184(18) Å
Ratio:
a:c = 1 : 7.442
Unit Cell V:
1540.4 ų
Comment:
Other space groups possible: R3m or R32

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.76 Å(100)
3.88 Å(40)
2.64 Å(25)
2.32 Å(20)
1.965 Å(15)
1.546 Å(10)
1.536 Å(10)
1.337 Å(10)
Locality:
Dronino meteorite, Kasimov District, Ryazan Oblast, Russia

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47i : [Terrestrial weathering of meteorites]

Type Occurrence of DroninoiteHide

Type Locality:
ⓘ Dronino meteorite, Kasimov District, Ryazan Oblast, Russia
General Appearance of Type Material:
Fine-grained, with single grains not exceeding 1 μm, in earthy and soft segregations, up to 0.15 × 1 × 1 mm.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow (registration number 3676/1).
Geological Setting of Type Material:
Weathered meteorite.
Associated Minerals at Type Locality:
ChromiteGoethiteLepidocrociteNickelbischofiteTaenite
TroiliteViolarite

Synonyms of DroninoiteHide

Other Language Names for DroninoiteHide

German:Droninoit

Relationship of Droninoite to other SpeciesHide

Member of:
Hydrotalcite Group > Hydrotalcite Supergroup
Other Members of Hydrotalcite Group:
DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m)
HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m (3 2/m) : R3m
IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m (3 2/m) : R3m
KaznakhtiteNi6Co3+2(CO3)(OH)16 · 4H2OTrig. 3 : R3
MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig. 3m (3 2/m) : R3m
PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig. 3m (3 2/m) : R3m
StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
TakoviteNi6Al2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
UM2002-02-COH:FeNi(Fe2+,Ni)6Fe3+2(CO3)(OH)16 · 4H2O
WoodalliteMg6Cr2(OH)16Cl2 · 4H2OTrig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Droninoite associated with GoethiteFe3+O(OH)

Related Minerals - Strunz-mindat GroupingHide

3.DA.ParahibbingiteFe2(OH)3ClTrig. 3m (3 2/m) : R3m
3.DA.CentennialiteCaCu3Cl2(OH)6 · nH2O (n ~ 0.7)Trig. 3m (3 2/m) : P3m1
3.DA.BounahasiteCu+Cu2+2(OH)3Cl2Mon. 2/m
3.DA.MuonionalustaiteNi3(OH)4Cl2 · 4H2OMon. 2/m : B2/m
3.DA.05MelanothalliteCu2Cl2OOrth. mmm (2/m 2/m 2/m) : Fddd
3.DA.10cHaydeeiteCu3Mg(OH)6Cl2Trig. 3m (3 2/m) : P3m1
3.DA.10bClinoatacamiteCu2(OH)3ClMon. 2/m
3.DA.10cParatacamiteCu3(Cu,Zn)(OH)6Cl2Trig. 3 : R3
3.DA.10cKapellasiteCu3Zn(OH)6Cl2Trig. 3m (3 2/m) : P3m1
3.DA.10cLeverettiteCu3Co(OH)6Cl2Trig. 3 : R3
3.DA.10aHibbingiteFe2+2(OH)3ClOrth. mmm (2/m 2/m 2/m) : Pnma
3.DA.10cParatacamite-(Ni)Cu3(Ni,Cu)(OH)6Cl2Trig. 3 : R3
3.DA.10aKempiteMn2+2(OH)3ClOrth. mmm (2/m 2/m 2/m) : Pnma
3.DA.10cTondiiteCu3Mg(OH)6Cl2Trig. 3m (3 2/m) : R3m
3.DA.10aAtacamiteCu2(OH)3ClOrth. mmm (2/m 2/m 2/m) : Pnma
3.DA.10bBelloiteCu(OH)ClMon. 2/m : P21/b
3.DA.10cMisakiiteCu3Mn(OH)6Cl2Trig. 3m (3 2/m) : P3m1
3.DA.10bIyoiteMnCuCl(OH)3Mon. 2/m : P21/m
3.DA.10cKuliginiteFe3Mg(OH)6Cl2Trig. 3 : R3
3.DA.10cGillarditeCu3Ni(OH)6Cl2Trig. 3m (3 2/m) : R3m
3.DA.10bUnnamed (Cu-Zn Chloride Hydroxide)CuZnCl(OH)3Mon. 2/m : P21/m
3.DA.10bBotallackiteCu2(OH)3ClMon. 2/m : P21/m
3.DA.10cHerbertsmithiteCu3Zn(OH)6Cl2Trig. 3m (3 2/m) : R3m
3.DA.15ClaringbulliteCu4ClF(OH)6Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.DA.15BarlowiteCu4BrF(OH)6Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.DA.20SimonkolleiteZn5Cl2(OH)8 · H2OTrig. 3m (3 2/m) : P3m1
3.DA.25ButtgenbachiteCu19(NO3)2(OH)32Cl4 · 2H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
3.DA.25ConnelliteCu19(SO4)(OH)32Cl4 · 3H2OHex. 6 m2 : P62c
3.DA.30AbhuriteSn21Cl16(OH)14O6Trig. 3 2 : R3 2
3.DA.35PonomareviteK4Cu4Cl10OMon. 2/m : B2/b
3.DA.40CalumetiteCaCu4(OH)8Cl2 · 3.5H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
3.DA.40AnthonyiteCu(OH,Cl)2 · 3H2OMon. 2/m
3.DA.45KhaidarkaniteCu4Al3(OH)14F3 · 2H2OMon. 2/m : B2/m
3.DA.50BobkingiteCu5Cl2(OH)8 · 2H2OMon. 2/m : B2/m
3.DA.55AvdoniniteK2Cu5(OH)4Cl8 · H2OMon. 2/m : P21/b
3.DA.70ChrysothalliteK6Cu6Tl3+Cl17(OH)4 · H2OTet. 4/mmm (4/m 2/m 2/m) : I4/mmm
3.DA.70DioskouriiteCaCu4Cl6(OH)4 · 4H2OMon. 2/m : P21/b
3.DA.75FeodosiyiteCu11Mg2Cl18(OH)8 · 16H2OMon. 2/m : P21/b
3.DA.80RomanorloviteK8Cu6Cl17(OH)3Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm

Other InformationHide

IR Spectrum:
confirms the absence of sulfate and carbonate groups
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 DroninoiteHide

References for DroninoiteHide

Localities for DroninoiteHide

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 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.
Italy
 
  • Liguria
    • Genoa
Marchesini et al. (2025)
Analyses of Anthony Kampf of Natural ... +1 other reference
  • Tuscany
    • Siena Province
      • Chiusdino
Alfonso Frías Forcada Collection
Kazakhstan
 
  • West Kazakhstan Region
    • Bayterek District
Sharygin (2019)
Russia
 
  • Kamchatka Krai
    • Ust-Kamchatsky District
Kutyrev et al. (2023)
  • Ryazan Oblast
    • Kasimov District
ZRMO 137 (6)
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