Kannanite

Yellow brown to orange veins of kannanite in quartz in iron-manganese ore. From Mt Kannan, Uchiko, Ouzu City, Ehime Prefecture, Shikoku Island, Japan. FOV : 2 mm Photo and collection: Roy Kristiansen

© Roy Kristiansen

Two very thin parallel veinlets of brownish yellow kannanite (running vertically in the photo), along with thicker veins of (overexposed) white quartz, cutting a matrix of fine-grained massive hematite. Field of view 6 mm. (Braunite and piemontite are also present elsewhere in this specimen, but not visible in the photo.)

© Alfredo Petrov

Kannanite occurs in orange veinlets less than 0.1 mm in width; where the width exceeds this, the interior is dominated by Mn-rich ardennite-(V). The host rock consists of a mixture of Hematite and Braunite.

© NaturalismMinerals///天物矿晶

Several orange veins, approximately 0.06 mm wide, can be considered to be Kannanite.

© NaturalismMinerals///天物矿晶