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|Name:||Named for its relationship to Uvite|
The Fe2+-analogue of uvite.
Note: The material studied by Selway et al. (1998) is very F-rich on the W site [(F0.49(OH)0.51)] and thus grades into the hypothetical "Fluor-feruvite."
Classification of Feruvite
|Strunz 8th edition ID:||8/E.19-100|
|Nickel-Strunz 10th (pending) edition ID:||9.CK.05|
9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions
|Dana 7th edition ID:||188.8.131.52|
|Dana 8th edition ID:||184.108.40.206|
61 : CYCLOSILICATES Six-Membered Rings
3 : Six-Membered Rings with borate groups
|Hey's CIM Ref.:||17.5.46|
17 : Silicates Containing other Anions
5 : Borosilicates
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Type Occurrence of Feruvite
|Type Locality:||Repanga Island (Cuvier Island), Waikato, North Island, New Zealand|
|Year of Discovery:||1989|
Physical Properties of Feruvite
Crystallography of Feruvite
|Cell Parameters:||a = 16.01Å, c = 7.24Å|
|Ratio:||a:c = 1 : 0.452|
|Unit Cell Volume:||V 1,607.13 Å³ (Calculated from Unit Cell)|
Optical Data of Feruvite
|RI values:||nω = 1.687 nε = 1.669|
|Maximum Birefringence:||δ = 0.018|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Chemical Properties of Feruvite
|Simplified for copy/paste:||Ca(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)|
|Essential elements:||Al, B, Ca, Fe, H, Mg, O, Si|
|All elements listed in formula:||Al, B, Ca, Fe, H, Mg, O, Si|
Relationship of Feruvite to other Species
|Member of:||Tourmaline Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
|Related Minerals - Dana Grouping):|
Other Names for Feruvite
|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 Feruvite
Grice, J. D. & Robinson, G. W. (1989): Feruvite, a new member of the tourmaline group, and its crystal structure. Canadian Mineralogist 27, 199-203.
American Mineralogist (1990): 75: 706-707.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Selway, J. B., Černý, P. & Hawthorne, F. C. (1998): Feruvite from lepidolite pegmatites at Red Cross Lake, Manitoba. Canadian Mineralogist 36, 433-439.
Best Localities for Feruvite
|Best of Species:||Feruvite|
Internet Links for Feruvite
Localities for Feruvite
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.