19th century specimen in Alfredo Petrov collection.

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Original Entry	19th century specimen in Alfredo Petrov collection.
Mindat Ref. ID	16036802	Long-form Identifier	mindat:1:5:16036802:0
GUID	0
Full Reference	19th century specimen in Alfredo Petrov collection.
Plain Text	19th century specimen in Alfredo Petrov collection.

Mineral Occurrences

Locality	Mineral(s)
Tonami City, Toyama Prefecture, Japan	ⓘ Chalcedony

	Alfredo Petrov specimen, from 19th century Japanese collection.
	Alfredo Petrov specimens acquired from late 19th century Japanese collection.
	Alfredo Petrov collection (in matrix of prehnite specimen)
	Alfredo Petrov, specimen obtained from old collection in Bolivia.
	Alfredo Petrov specimen (ex-Kotaro Watanabe collection)
	Alfredo Petrov collection, specimen purchased in Mali by Dr Demetrius Pohl.
	PXRD by Alfredo Petrov, August 2016 (dark brown botryoidal specimen originally mislabelled "Psilomelane" in the Bartsch collection).
	Late 19th century Ward & Howell specimen labels.
	Late 19th century Dr. F. Krantz specimen.
	Anthony Kampf analysis, Alfredo Petrov specimen.
	Alfredo Petrov specimen (from Kotaro Watanabe)

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19th century specimen in Alfredo Petrov collection.

Mineral Occurrences

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