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Pyrochroite

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LGM577314

Pyrochroite

Ex Ward's Nat. Science Establishment, Rochester, N. Y.
With Antique Label

Description Tabs

Description
Locality: 
Iwate Prefecture, Honshu Island, Japan
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 6.5 × 4 cm
Weight: 
183.00gr
Description

Pyrochroite is a Mn hydroxide. Here is a massive sample of brown pyrochroite.
According to mindat, the exact locality could be either the Noda-Tamagawa mine, Noda-mura, Kunohe-gun or the Hanawa mine, Miyako City.

Ward's Nat. Science Establishment was founded in 1862, the label is surely a newer one, dated to the 60's or 70's.

Mineral Data
What's on the rock

Pyrochroite

Formula: 
Mn(OH)2
Strunz: 
4.FE.05
Hardness: 
2.5 - 3.0
Type Locality: 
Pajsberg Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden

Seller Information

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