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Prehnite from
Amaterasuite type locality, Mt Ohsa (Ohsayama; Osayama), Niimi City, Okayama Prefecture, Japan


Locality type:Outcrop
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Amaterasuite type locality, Mt Ohsa (Ohsayama; Osayama), Niimi City, Okayama Prefecture, Japan
Data Identifiers
Mindat Occurrence Record ID:1749450
Long-form Identifier:1:3:1749450:8
GUID (UUID V4):0
Nearest other occurrences of Prehnite
1.5km (0.9 miles) ⓘMt Ohsa (Ohsayama; Osayama), Niimi City, Okayama Prefecture, Japan
30.4km (18.9 miles) ⓘWakamatsu mine, Nichinan, Hino District, Tottori Prefecture, Japan
35.4km (22.0 miles) ⓘFuka mine, Fuka, Bitchū, Takahashi City, Okayama Prefecture, Japan
References
Alfredo Petrov field observations, May 2025.Identified by Alfredo Petrov: Visual Identification
NISHIO-HAMANE, Daisuke; NAGASHIMA, Mariko; MORI, Yuki; OHNISHI, Masayuki; SHIMOBAYASHI, Norimasa; MATSUMOTO, Takashi; TANABE, Mitsuo (2025) Amaterasuite, Sr4Ti6Si4O23(OH)Cl, a new mineral from jadeitite, a representative stone of Japan. Journal of Mineralogical and Petrological Sciences, 120 (1). 250420 doi:10.2465/jmps.250420
 
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