Misenite
A valid IMA mineral species - grandfathered
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About Misenite
Cape Miseno, Italy
Formula:
K8H6(SO4)7
Colour:
Colourless (artificial material), greyish-white; colourless in transmitted light
Lustre:
Silky, Pearly
Specific Gravity:
2.32
Crystal System:
Monoclinic
Name:
After the type locality, Cape Miseno (Capo Miseno), near Naples, Italy.
Soluble in H2O; solution has a bitter and acid taste.
Unique Identifiers
Mindat ID:
2726
Long-form identifier:
mindat:1:1:2726:3
GUID
(UUID V4):
(UUID V4):
86b333e6-e9f6-4a8b-a2c4-3153b3d2fbd6
IMA Classification of Misenite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
K8(SO4)(SO3OH)6
First published:
1849
Classification of Misenite
7.AD.15
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
D : With only large cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
A : Sulfates (selenates, etc.) without additional anions, without H2O
D : With only large cations
28.1.2.1
28 : ANHYDROUS ACID AND NORMAL SULFATES
1 : Anhydrous Acid Sulfates
28 : ANHYDROUS ACID AND NORMAL SULFATES
1 : Anhydrous Acid Sulfates
25.1.6
25 : Sulphates
1 : Sulphates of the alkali metals and ammonium
25 : Sulphates
1 : Sulphates of the alkali metals and ammonium
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 |
|---|---|---|
| Mse | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Misenite
Silky, Pearly
Transparency:
Transparent, Translucent
Colour:
Colourless (artificial material), greyish-white; colourless in transmitted light
Cleavage:
Distinct/Good
{010}, distinct.
{010}, distinct.
Density:
2.32 g/cm3 (Measured) 2.37 g/cm3 (Calculated)
Optical Data of Misenite
Type:
Biaxial (+)
RI values:
nα = 1.475(3) nβ = 1.480(3) nγ = 1.487(3)
2V:
Measured: 81° , Calculated: 82°
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none
Chemistry of Misenite
Mindat Formula:
K8H6(SO4)7
Elements listed:
Crystallography of Misenite
Crystal System:
Monoclinic
Cell Parameters:
a = 23.00 Å, b = 7.104 Å, c = 8.710 Å
β = 102.05°
β = 102.05°
Ratio:
a:b:c = 3.238 : 1 : 1.226
Unit Cell V:
1,391.79 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Fibrous masses and aggregates of needle- or lath-like crystals elongated [100] and flattened {001}. {001} striated [100].
Comment:
Point Group: n.d.; Space Group: n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 4.24 Å | (100) |
| 3.648 Å | (57) |
| 4.92 Å | (43) |
| 4.83 Å | (37) |
| 3.592 Å | (33) |
| 3.490 Å | (27) |
| 2.892 Å | (27) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 45a : [Sulfates, arsenates, selenates, antimonates] |
Type Occurrence of Misenite
Place of Conservation of Type Material:
1) Natural History Museum, Paris, France, 100781.
2) The Natural History Museum, London, England, 60393.
2) The Natural History Museum, London, England, 60393.
Geological Setting of Type Material:
Fumarole
Associated Minerals at Type Locality:
Reference:
Scacchi, A. (1849) Memoria IIIa. Esame delle sostanze che si formano presso i fumaroli della Regione Flegrea. Memorie Geologiche sulla Campania 3a, (Napoli): 83-131 (98). (as Misénite)
Synonyms of Misenite
Other Language Names for Misenite
Common Associates
Related Minerals - Strunz-mindat Grouping
| 7.AD. | Calciolangbeinite | K2Ca2(SO4)3 |
| 7.AD. | Bubnovaite | K2Na8Ca(SO4)6 |
| 7.AD. | Dobrovolskyite | Na4Ca(SO4)3 |
| 7.AD. | Murphyite | Pb(Te6+O4) |
| 7.AD. | Cuprodobrovolskyite | Na4Cu(SO4)3 |
| 7.AD. | Kristjánite | KNa2H(SO4)2 |
| 7.AD.05 | Arcanite | K2SO4 |
| 7.AD.05 | Mascagnite | (NH4)2SO4 |
| 7.AD.10 | Mercallite | KHSO4 |
| 7.AD.20 | Letovicite | (NH4)3H(SO4)2 |
| 7.AD.25 | Glauberite | Na2Ca(SO4)2 |
| 7.AD.25 | Thénardite | Na2SO4 |
| 7.AD.30 | Anhydrite | CaSO4 |
| 7.AD.30 | Metathénardite | Na2SO4 |
| 7.AD.35 | Anglesite | PbSO4 |
| 7.AD.35 | Baryte | BaSO4 |
| 7.AD.35 | Celestine | SrSO4 |
| 7.AD.35 | Olsacherite | Pb2(Se6+O4)(SO4) |
| 7.AD.40 | Kalistrontite | K2Sr(SO4)2 |
| 7.AD.40 | Palmierite | K2Pb(SO4)2 |
| 7.AD.45 | Ivsite | Na3H(SO4)2 |
| 7.AD.55 | Markhininite | TlBi(SO4)2 |
Other Information
Notes:
Soluble in water, yielding an acidic solution.
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 Misenite
mindat.org URL:
https://www.mindat.org/min-2726.html
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Please feel free to link to this page.
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References for Misenite
Localities for Misenite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Chile | |
| Excalibur Mineral Co. specimen |
Italy (TL) | |
| Scacchi A. (1849) +3 other references |
| Francesco Civero | |
| Palache et al. (1951) +1 other reference |
| Russo et al. (2004) | |
Poland | |
| Łukasz Kruszewski (2012) |
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Cerros Pintados, Tamarugal Province, Tarapacá, Chile