Nakauri mine, Shinshiro city, Aichi Prefecture, Japan

Radiated aggregates of white to light blue acicular crystals of nakauriite, on serpentine. Collection and photo by Gianfranco Ciccolini. Nikon D850, bellows, Luminar 16 mm.

Delicate felting blue needles. Photograph and collection jm.CLAUDE.

© Jean-Marie Claude

Blue fibrous nakauriite. Stack of 30 images.

© Steve Sorrell

From the type locality, this specimen shows patches of blue nakauriite which are intergrown with greenish serpentine. Collection and photo Rui Nunes, May 2021.

© Rui Nunes 2021

Acicular needles of nakauriite on serpentinite. Brent Thorne specimen and photograph.

© Brent Thorne

Coalesced sprays of light blue nakauriite, growing on a mineral of the serpentine group. Field of view is a bit over 9 mm.

© Lukasz Kruszewski 2007

Small acicular crystals of Nakauriite. Field of view 5 mm. Specimen and photo Leon Hupperichs.

© Leon Hupperichs

0.2 cm cluster of crystals of nakauriite, from the type locality, of course. S334-19 Excalibur Mineral Company specimen.

© 2008, JGW

Small acicular crystals of Nakauriite. Field of view 5 mm. Specimen and photo Leon Hupperichs.

© Leon Hupperichs

8.8 x 4.7 x 4.3 cm. A very seldom seen specimen of the incredibly rare hydrated copper hydroxide carbonate sulfate, Nakauriite. This specimen shows beautiful patches of sky blue Nakauriite which are intergrown with moss-green Serpentine against gabbro matrix. This piece is from the type locality for Nakauriite (there are less than ten localities ...

© Rob Lavinsky & irocks.com

Delicate felting blue needles , Photo measuring 15 mm in length. Specimen 35x23x25mm Photograph and collection jm.CLAUDE

© Jean-Marie Claude

Pale blue crystalline masses are rich throughout this 5.7 x 2.4 x 2.2 cm matrix. Ex Steve Pullman collection.

© Weinrich Minerals, Inc.

Pale blue crystalline masses are rich throughout this 5.7 x 2.4 x 2.2 cm matrix. Ex Steve Pullman collection.

© Weinrich Minerals, Inc.

Heazlewoodite (9mm in width, might be mixed with cobaltpentlandite) in serpentinite. Surrounded by copper sulfides of some kind. Nakauri mine is known to produce the finest heazlewoodite specimens in Japan.

© R. Nakanishi

A specimen I received as a gift from Greg Vella in August of 2024.

© Sean Michael Stimac

The fibrous crystals grow on serpentinized gabbro and are very easy to detach or exfoliate. The surface of the matrix has serpentine-like textures, and it has been measured to contain abundant magnetite, which is magnetic and can be attracted by a magnet.

© NaturalismMinerals

Light blue nakauriite sprays on greenish serpentine. Peter Lof photo and collection.

© Peter Lof

© NaturalismMinerals

Blue to white nakauriite crystals on matrix. Henry Minot photo & collection.

© Henry Minot

Radiated aggregates of light blue to vibrant blue acicular crystals of nakauriite. Although it is not a rare mineral in the type locality, it is difficult to obtain such a beautiful specimen.