	1	2
SiO₂	72.48 %	72.48 %
TiO₂	0.08 %	0.08 %
Al₂O₃	1.89 %	1.89 %
Fe₂O₃*	6.09 %	6.09 %
MnO*	7.04 %	%
CaO	0.00 %	0.00 %
MgO	0.00 %	0.00 %
Na₂O	5.75 %	5.75 %
K₂O	4.59 %	4.59 %
BaO	0.00 %	0.00 %
Li₂O**	3 %	%
H₂O**	1 %	%
Mn₂O₃***	%	7.83 %
Li₂O#	%	4.2 %
Total:	101.92 %	102.91 %

Sample references:

1	analysis #4	analysis #4 from Hirowatari, F. and Fukuoka, M. (1989) Some problems of the studies on the manganese minerals in Japan. Journal of the Mineralogical Society of Japan, 18, 347
2	analysis #4	re-calculation of analysis #4 from Hirowatari, F. and Fukuoka, M. (1989) based on Si=12 apfu normalization; Frank Mazdab re-normalization. reported as **calculated from measured Mn by charge balance #calculated from stoichiometry

Confirmation

Validity:

Believed Valid

Data

Mineral Data:

Click here to view Unnamed (Mn3+-dominant analog of Sugilite) data

Locality Data:

Click here to view Furumiya mine, Tobe-cho, Iyo district, Ehime Prefecture, Japan

Data Identifiers

Mindat Occurrence Record ID:

1347806

Long-form Identifier:

1:3:1347806:1

GUID (UUID V4):

98ae3663-74a0-463a-aa5b-eeef3ce97f4d

References

Hirowatari, F. and Fukuoka, M. (1989) Some problems of the studies on the manganese minerals in Japan. Journal of the Mineralogical Society of Japan, 18, 347–365, https://doi.org/10.2465/gkk1952.18.347 (in Japanese)

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Unnamed (Mn3+-dominant analog of Sugilite) from Furumiya mine, Tobe-cho, Iyo district, Ehime Prefecture, Japan

Unnamed (Mn3+-dominant analog of Sugilite) from
Furumiya mine, Tobe-cho, Iyo district, Ehime Prefecture, Japan