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16 Jul-17:31:41 The mizunaka collection - chalcoalumite (Am Mizunaka)
16 Jul-12:44:28 Architectural spinel from vietnam / #mvm (minerals - virtual museum) collection (Jordi Fabre)
16 Jul-12:18:23 New book: minerals of britain and ireland 2009-2024 - a review (Jordi Fabre)
16 Jul-09:38:43 Re: collection of michael shaw (Michael Shaw)
15 Jul-13:05:10 Sphalerite with calcite from Áliva, spain / #mvm (minerals - virtual museum) collection (Jordi Fabre)
15 Jul-11:32:34 Goesdorf mine (luxembourg) antimony (Roger Warin)
14 Jul-18:03:59 Malachite after azurite on goethite (Silvia)
14 Jul-16:43:05 The mizunaka collection - quartz (Am Mizunaka)
14 Jul-09:34:45 Re: collection of michael shaw (Michael Shaw)
13 Jul-12:19:45 Lazurite (lapis lazuli) from afghanistan / #mvm (minerals - virtual museum) collection (Jordi Fabre)
12 Jul-23:04:14 Re: collection of volkmar stingl (Volkmar Stingl)
12 Jul-09:00:56 Re: the mim museum in beirut, lebanon (Mim Museum)
12 Jul-06:59:21 Re: collection from dany mabillard (Dany Mabillard)
12 Jul-00:49:24 Re: are there pyrite balls found in verzino? (Herwig)
12 Jul-00:25:14 Re: are there pyrite balls found in verzino? (Roger Warin)
12 Jul-00:08:38 Re: are there pyrite balls found in verzino? (Roger Warin)
11 Jul-17:36:07 The mizunaka collection - fluorite (Am Mizunaka)
11 Jul-14:14:25 Re: slice schalenblende (Mathias)
11 Jul-14:08:21 Re: czech rockhounding adventures – agates & amethysts (Stoner)
11 Jul-08:12:55 Czech rockhounding adventures – agates & amethysts (Stoner)
11 Jul-08:03:52 Re: are there pyrite balls found in verzino? (James Catmur)
11 Jul-02:33:28 Re: collection of michael shaw (Michael Shaw)
11 Jul-00:24:28 Re: collection of volkmar stingl (Volkmar Stingl)
10 Jul-13:46:07 Re: are there pyrite balls found in verzino? (Dany Mabillard)
10 Jul-13:45:53 Veszelyite from sanguozhuang, china / #mvm (minerals - virtual museum) collection (Jordi Fabre)
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The Mizunaka Collection
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am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 07, 2017 23:30 Post subject: The Mizunaka Collection - sakura ishi

Group of Sakura Ishi (Cherry Blossom Stones). Mica pseudomorphs of cordierite-indialite intergrowths.

SakuraIshi.jpg

Mineral:

Mica

Locality:

Kameoka City, Kyoto Prefecture, Kinki Region, Honshu Island, Japan

Dimensions:

5.5 x 3.7 cm

Description:

Viewed:

27202 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 09, 2017 19:27 Post subject: The Mizunaka Collection - andradite

AndraditeJpn.jpg

Mineral:

Andradite

Locality:

Kohse mine, Tenkawa village, Yoshino-gun, Nara Prefecture, Kinki Region, Honshu Island, Japan

Dimensions:

2.6 x 1.8 cm

Description:

Viewed:

27166 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 10, 2017 21:49 Post subject: The Mizunaka Collection - quartz

QtzHiddenite.jpg

Mineral:

Quartz

Locality:

Stony Point (Hiddenite), Alexander County, North Carolina, USA

Dimensions:

15.3 x 11.6 cm

Description:

Viewed:

27055 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 11, 2017 22:52 Post subject: The Mizunaka Collection - quartz

QtzOtome.jpg

Mineral:

Quartz

Locality:

Otome Mine, Kofu City, Kinpuzan District, Yamanashi Prefecture, Chubu Region, Honshu Island, Japan

Dimensions:

5.5 x 4.6 x 1.5 cm

Description:

Viewed:

27030 Time(s)

Jamison Brizendine

Joined: 27 Feb 2014
Posts: 128
Location: Northeast Ohio

Posted: Jul 12, 2017 08:42 Post subject: Re: The Mizunaka Collection

Love that Japanese Andradite! I'm curious to know if anyone has done any research into the cause of the iridescence on the garnets?

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 12, 2017 15:26 Post subject: Re: The Mizunaka Collection

Jamison Brizendine wrote:

Love that Japanese Andradite! I'm curious to know if anyone has done any research into the cause of the iridescence on the garnets?

Thanks Jamison. There is an article about the garnets in an older issue of Gems and Gemology on the GIA website. Search for andradite and japan.

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 13, 2017 18:03 Post subject: The Mizunaka Collection - quartz

Floater quartz with hematite on and included within the cluster with a couple of tiny barite crystals.

QtzHemBar1.jpg

Mineral:

Quartz, Hematite, Barite

Locality:

Jan Coetzee Mine, Okiep Copper District, Namakwa District (Namaqualand), Northern Cape Province, South Africa

Dimensions:

9.0 x 6.5 cm

Description:

Viewed:

26618 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 15, 2017 15:58 Post subject: The Mizunaka Collection - quartz

QtzSpess1.jpg

Mineral:

Quartz (variety smoky quartz), Spessartine

Locality:

Wushan Spessartine prospects, Tongbei, Yunxiao, Zhangzhou Prefecture, Fujian Province, China

Dimensions:

9.2 x 7.5 cm

Description:

Viewed:

26461 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 16, 2017 21:45 Post subject: The Mizunaka Collection - fluorite

FluoriteCalAug.jpg

Mineral:

Fluorite, Calcite

Locality:

Stoneco Auglaize Quarry, Junction, Paulding County, Ohio, USA

Dimensions:

17.5 x 7.5 cm

Description:

Viewed:

26399 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 17, 2017 18:10 Post subject: The Mizunaka Collection - beryl

EmRutile.jpg

Mineral:

Beryl (variety emerald), Rutile

Locality:

Rist Mine, Hiddenite, Alexander County, North Carolina, USA

Dimensions:

1.1 x .55 cm

Description:

Viewed:

26262 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 23, 2017 16:24 Post subject: The Mizunaka Collection - quartz

SmkQtzPetersen.jpg

Mineral:

Quartz (variety smoky quartz), Quartz

Locality:

Petersen Mountain, Hallelujah Junction area, Washoe County, Nevada, USA

Dimensions:

3.2 x 4.2 cm

Description:

Viewed:

25283 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 26, 2017 23:45 Post subject: The Mizunaka Collection - quartz

QtzChlorSwiss1.jpg

Mineral:

Quartz with Chlorite

Locality:

Schin gorge, Thusis, Domleschg, Hinterrhein Valley, Grischun (Grisons; Graubünden), Switzerland

Dimensions:

7.9 x 5.8 cm

Description:

Viewed:

25252 Time(s)

Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany

Posted: Jul 27, 2017 02:13 Post subject: Re: The Mizunaka Collection - quartz

am mizunaka wrote:

Quartz with Chlorite
Locality: Schin gorge, Thusis, Domleschg, Hinterrhein Valley, Grischun, Switzerland

Very nice alpine quartz cluster. The chlorite is an inclusion IN the quartz and not a coating on it, right? I love clear quartzes, especially from the Alps, but I'm not a fan of chlorite coating on the quartz crystals. However, I like it as an inclusion, and the Schin Gorge is famous for nice chlorite phantoms, so I guess your specimen is also one of them ...?

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 27, 2017 15:01 Post subject: Re: The Mizunaka Collection - quartz

Tobi wrote:

am mizunaka wrote:

Quartz with Chlorite
Locality: Schin gorge, Thusis, Domleschg, Hinterrhein Valley, Grischun, Switzerland

Thanks Tobi. The chlorite is an inclusion.

am mizunaka

Joined: 09 Apr 2010
Posts: 2215
Location: USA

Posted: Jul 28, 2017 19:04 Post subject: The Mizunaka Collection - fluorite

GalenaFluorite.jpg

Mineral:

Fluorite, Galena

Locality:

Ojuela Mine, Mapimí, Municipio Mapimí, Durango, Mexico

Dimensions:

6.3 x 4.4 cm

Description:

Viewed:

25266 Time(s)

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