Japanese Rhodochrosite!
A selection of old rhodochrosite specimens form Japan, and a couple others.
While most of the specimens in this update are the botryoidal material from Oppu, the examples from the Osarizawa Mine are of particular note. Pieces from this location are considerably rarer, and are notable for usually being crystalline. In fact, the mine was only operational from 1936 to 1965.
I have tried to depict these with the weakest color you are likely to see, but there will be a bit of variation with lighting-- they tend to look best under incandescent lighting.
List
Grid
JPR01 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
15.4x 9.8x 2.2 cm
JPR02 Rhodochrosite
Osarizawa mine, Kazuno City, Akita Prefecture, Japan
8.5x 7.8x 3.5 cm
JPR03 Rhodochrosite on Barite
Osarizawa mine, Kazuno City, Akita Prefecture, Japan
9.0x 6.0x 3.5 cm
JPR04 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
8.8x 4.3x 2.5 cm
JPR05 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
5.8x 4.8x 2.3 cm
JPR06 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
6.1x 4.7x 2.1 cm
JPR07 Rhodochrosite
Osarizawa mine, Kazuno City, Akita Prefecture, Japan
4.8x 3.2x 1.8 cm
JPR08 Rhodochrosite
Osarizawa mine, Kazuno City, Akita Prefecture, Japan
3.8x 2.0x 2.2 cm
JPR09 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
7.0x 4.4x 0.7 cm
JPR10 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
5.0x 4.4x 2.1 cm
JPR11 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
5.4x 3.5x 1.8 cm
JPR12 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
4.0x 3.3x 1.4 cm
JPR13 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
4.4x 3.4x 2.4 cm
JPR14 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
7.4x 4.0x 1.7 cm
JPR15 Rhodochrosite
Oppu mine, Nishimeya-mura, Naka-Tsugaru-gun, Aomori, Japan
3.0x 2.0x 1.7 cm
JPR16 Pyromorphite
Ohyama-Machi, Toyama Pref., Japan
6.1x 3.6x 3.8 cm
JPR17 Henmilite
Fuka mine, Fuka, Bicchu-cho, Takahashi City, Okayama Prefecture, Chugoku Region, Honshu Island, Japan
5,9x 2.8x 2.5 cm