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Carobbiite

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Formula:
KF
System:IsometricColour:Colourless
Hardness:2 - 2½
This page provides mineralogical data about Carobbiite.

Classification of Carobbiite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:3/A.02-20
Nickel-Strunz 10th (pending) edition ID:3.AA.20

3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
Dana 8th edition ID:9.1.1.4

9 : NORMAL HALIDES
1 : AX
Hey's CIM Ref.:8.1.5

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
1 : Halides of the alkali metals and ammonium
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Type Occurrence of Carobbiite

Type Locality:Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy
Year of Discovery:1956
Associated Minerals at type locality:
MercalliteMiseniteHieratite

Physical Properties of Carobbiite

Colour:Colourless
Hardness (Mohs):2 - 2½
Cleavage:Distinct/Good
On {001}.
Density (measured):2.505 g/cm3
Density (calculated):2.528 g/cm3

Crystallography of Carobbiite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Cell Parameters:a = 5.34Å
Unit Cell Volume:V 152.27 ų (Calculated from Unit Cell)

Optical Data of Carobbiite

Type:Isotropic

Chemical Properties of Carobbiite

Formula:
KF
Essential elements:F, K
All elements listed in formula:F, K
Analytical Data:Easily soluble in water.

Relationship of Carobbiite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.AA.05Marshite
CuI
3.AA.05Miersite
(Ag,Cu)I
3.AA.05Nantokite
CuCl
3.AA.05UM1999-11:I:CuS
Cu(I,S)
3.AA.10Iodargyrite
AgI
3.AA.10Tocornalite
(Ag,Hg)I
3.AA.15Bromargyrite
AgBr
3.AA.15Chlorargyrite
AgCl
3.AA.20Griceite
LiF
3.AA.20Halite
NaCl
3.AA.20Sylvite
KCl
3.AA.20Villiaumite
NaF
3.AA.25Salammoniac
NH
 
4
Cl
3.AA.25UM1998-03-Cl:Tl
TlCl
3.AA.25Lafossaite
Tl(Cl,Br)
3.AA.30Calomel
(Hg
+
2
)Cl
 
2
3.AA.30Kuzminite
(Hg
+
2
)(Br,Cl)
 
2
3.AA.30Moschelite
(Hg
+
2
)I
 
2
3.AA.35Neighborite
NaMgF
 
3
3.AA.40Chlorocalcite
KCaCl
 
3
3.AA.45Kolarite
PbTeCl
 
2
3.AA.50Radhakrishnaite
PbTe
 
3
(Cl,S)
 
2
3.AA.55Challacolloite
KPb
 
2
Cl
 
5
3.AA.60Hephaistosite
TlPb
 
2
Cl
 
5
Related Minerals - Hey's Index Grouping:

- +
8.1.1Griceite
LiF
8.1.2Villiaumite
NaF
8.1.3Halite
NaCl
8.1.4Hydrohalite
NaCl · 2H
 
2
O
8.1.6Sylvite
KCl
8.1.7Salammoniac
NH
 
4
Cl

Other Names for Carobbiite

Synonyms:
Potassium Fluoride
Other Languages:
German:Carobbiit
Russian:Кароббиит
Spanish:Carobbiita

Other Information

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

References for Carobbiite

Reference List:

- +
Carobbi (1936) Att. acc. sc. Lett. Arti., Modena: (5): 1: 33.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 28 (as Potassium Fluoride).

American Mineralogist (1957): 42: 117.

Internet Links for Carobbiite

Search Engines:
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Carobbiite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Carobbiite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Italy
     
    • Campania
      • Naples Province
        • Somma-Vesuvius Complex
    [Russo, M., Punzo, I. (2004): I minerali del Somma-Vesuvio, AMI] [Rend.Soc.Min.Ital.(1956) 12, 212-213) [Lapis 1994:5 p.13-23,58]
    Japan
     
    • Hokkaido
      • Iburi Province
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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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