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Gravegliaite

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Valgraveglia Mine (Gambatesa Mine), Reppia, Graveglia Valley, Ne, Genova Province, Liguria, Italy
© G. Armellino

Formula:
Mn
2+
 
[SO
 
3
] · 3H
 
2
O
System:Orthorhombic
This page provides mineralogical data about Gravegliaite.

Classification of Gravegliaite

IMA status:Approved 1990
Strunz 8th edition ID:4/K.05-05
Nickel-Strunz 10th (pending) edition ID:4.JE.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
E : Sulfites
Dana 7th edition ID:34.2.4.2
Dana 8th edition ID:34.2.5.2

34 : SELENITES, TELLURITES AND SULFITES
2 : A(XO3)·xH2O
Hey's CIM Ref.:27.1.3

27 : Sulphites, Chromates, Molybdates and Tungstates
1 : Sulphites
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Type Occurrence of Gravegliaite

Type Locality:Valgraveglia Mine (Gambatesa Mine), Reppia, Graveglia Valley, Ne, Genova Province, Liguria, Italy
Year of Discovery:1991

Crystallography of Gravegliaite

Crystal System:Orthorhombic
Cell Parameters:a = 9.76Å, b = 5.63Å, c = 9.55Å
Ratio:a:b:c = 1.734 : 1 : 1.696
Unit Cell Volume:V 524.76 ų (Calculated from Unit Cell)

Optical Data of Gravegliaite

Type:Biaxial (+)
RI values: nα = 1.590 nβ = 1.596 nγ = 1.636
2V:Measured: 41° to 43°, Calculated: 44°
Maximum Birefringence:δ = 0.046

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v distinct

Chemical Properties of Gravegliaite

Formula:
Mn
2+
 
[SO
 
3
] · 3H
 
2
O
Essential elements:H, Mn, O, S
All elements listed in formula:H, Mn, O, S

Relationship of Gravegliaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.JE.10Hannebachite
Ca[SO
 
3
] · H
 
2
O
4.JE.15Orschallite
Ca
 
3
[SO
 
4
|(SO
 
3
)
 
2
] · 12H
 
2
O
4.JE.20Scotlandite
PbSO
 
3
Related Minerals - Hey's Index Grouping:

- +
27.1.1Hannebachite
Ca[SO
 
3
] · H
 
2
O
27.1.2Scotlandite
PbSO
 
3
Related Minerals - Dana Grouping):

- +
34.2.4.1Hannebachite
Ca[SO
 
3
] · H
 
2
O

Other Names for Gravegliaite

Synonyms:
IMA1990-020
Other Languages:
German:Gravegliait
Russian:Гравелиаит
Spanish:Gravegliaita

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 Gravegliaite

Reference List:New Minerals (1997), New Minerals 1990-1994.

Zeitschrift für Kristallographie: 197: 97-106.

Articles/Blogs about Gravegliaite

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    Localities for Gravegliaite

    (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
     
    • Liguria
      • Genova Province
        • Ne
          • Graveglia Valley
            • Reppia
    		[Zeit.Krist.(1991) 197, 97-106; MinRec 32:354]
    Luxembourg
     
    • Diekirch District
      • Wincrange
    		http://www.mnhn.lu/recherche/ferrantia/publications/Ferrantia49.pdf
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