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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 04, 2014 23:50 Post subject: Re: The Mizunaka Collection |
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Jim, I took a needle to a small clear crystal on the backside and it did not scratch it.
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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 07, 2014 04:16 Post subject: Re: The Mizunaka Collection |
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The quartz with rutile is from a small find found in 2001/2002 near the Rist Mine in Hiddenite, North Carolina. The smoky quartz is very glassy and has distinct zoning that is not clearly visible in the photograph. The red arrow marks a movable bubble.
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Quartz, Rutile Hiddenite, Alexander Co., North Carolina, USA 3.9 x 2.8 cm |
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44096 Time(s) |

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Quartz, Rutile Hiddenite, Alexander Co., North Carolina, USA Back Side |
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43878 Time(s) |

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Quartz (var Smoky Quartz) Rist Mine, Hiddenite, Alexander Co., North Carolina, USA 6.5 x 3.8 cm |
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43923 Time(s) |

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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 08, 2014 19:11 Post subject: Re: The Mizunaka Collection |
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Baryte Jebel Ouichane, Beni Bou Ifrour, Nador, Nador Province, Oriental Region, Morocco 7.8 x 7.0 cm |
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44046 Time(s) |

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Baryte Jebel Ouichane, Beni Bou Ifrour, Nador, Nador Province, Oriental Region, Morocco 7.8 x 7.0 cm |
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44137 Time(s) |

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Silver Kongsberg, Buskerud, Norway 3.5 x 4.5 cm |
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44275 Time(s) |

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Mike Wood

Joined: 16 Dec 2010
Posts: 456
Location: Northern England



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Posted: May 09, 2014 14:30 Post subject: Re: The Mizunaka Collection |
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Lovely quartzes from Rist Mine, Mike. The blue Baryte specimen from Morrocco looks mouthwateringly good, and excellent contrast with the matrix!
Thanks, Mike
_________________ Rock basher |
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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 10, 2014 01:39 Post subject: Re: The Mizunaka Collection |
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Thanks Mike. I really like the Baryte specimen too and I think the quartz pieces are a little different than the usual for that locality.
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Baryte, Quartz Jinkouhe District, Leshan Prefecture, Sichuan Province, China 9.7 x 8.3 cm |
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44022 Time(s) |

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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: May 10, 2014 02:30 Post subject: Re: The Mizunaka Collection |
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am mizunaka wrote: | Baryte, Quartz
Jinkouhe District, Leshan Prefecture, Sichuan Province, China
9.7 x 8.3 cm |
Are there two generations of Baryte? Looks like some are honey-coloured and some white with some coating ...
Cheers!
Tobi
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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 10, 2014 17:38 Post subject: Re: The Mizunaka Collection |
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Tobi, I think that the white coating is a fine layer of quartz.
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Tobi
Site Admin

Joined: 07 Apr 2009
Posts: 4248
Location: Germany



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Posted: May 11, 2014 01:22 Post subject: Re: The Mizunaka Collection |
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am mizunaka wrote: | Tobi, I think that the white coating is a fine layer of quartz. |
OK, and the yellow Barytes? Uncoated several crystals or just uncoated parts of the same Baryte crystals? Just wanted to know if there are two generations or not ;)
Tobi
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Roger Warin

Joined: 23 Jan 2013
Posts: 1238



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Posted: May 11, 2014 16:23 Post subject: Re: The Mizunaka Collection |
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Delicate pictures for these Barytes.
Bravo.
Roger.
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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 11, 2014 23:16 Post subject: Re: The Mizunaka Collection |
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Tobi - I would say that the Barytes are a single generation with the possible exception being the largest visible Baryte crystal.
Thanks Roger. This was one of the few pieces I have run across with no damage.
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Fluorite, Quartz Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China 5.0 x 2.9 cm |
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43352 Time(s) |

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Fluorite, Quartz Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China 5.0 x 2.9 cm |
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43330 Time(s) |

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Acanthite Proano Mine, Mun. de Fresnillo, Zacatecas, Mexico 4.4 x 2.2 cm |
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43711 Time(s) |

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Acanthite Proano Mine, Mun. de Fresnillo, Zacatecas, Mexico Back Side |
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43353 Time(s) |

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Acanthite Fresnillo Mine, Mun. de Fresnillo, Zacatecas, Mexico 2.7 x 1.9 cm |
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43711 Time(s) |

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Acanthite Fresnillo Mine, Mun. de Fresnillo, Zacatecas, Mexico Back Side |
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43766 Time(s) |

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Acanthite Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico 4.1 x 1.8 cm |
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43752 Time(s) |

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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 12, 2014 23:25 Post subject: Re: The Mizunaka Collection |
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Epidote, Quartz Pisco Province, Ica Department, Peru 6.5 x 1.1 cm |
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42753 Time(s) |

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Quartz Santander Department, Colombia 11.4 x 5.7 cm |
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42804 Time(s) |

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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 14, 2014 02:04 Post subject: Re: The Mizunaka Collection |
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Fluorite, Quartz Dayu Co., Ganzhou Prefecture, Jiangxi Province, China 5.4 x 3.9 x 3.2 cm |
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42709 Time(s) |

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Fluorite, Quartz Dayu Co., Ganzhou Prefecture, Jiangxi Province, China 5.4 x 3.9 x 3.2 cm |
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43098 Time(s) |

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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 14, 2014 22:44 Post subject: Re: The Mizunaka Collection |
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Quartz, Muscovite (var fuchsite) Cerro Quesgar, Ancash Department, Peru 12.6 x 11.3 cm |
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42782 Time(s) |

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am mizunaka

Joined: 09 Apr 2010
Posts: 2209
Location: USA



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Posted: May 16, 2014 01:36 Post subject: Re: The Mizunaka Collection |
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Fluorite, Arsenopyrite Yaogangxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China 4.5 x 4.0 cm |
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42651 Time(s) |

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Fluorite, Calcite, Quartz Jingbian Cu-Au deposit, Zongyang Co., Anqing Prefecture, Anhui Province, China 6.5 x 6.0 cm |
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42810 Time(s) |

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Philip Mostmans
Joined: 08 Nov 2011
Posts: 43
Location: Mechelen



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Posted: May 16, 2014 04:05 Post subject: Re: The Mizunaka Collection |
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In the third to last post you mention Dayu. Co. for both Fluorites. How sure are you about the provenance? I got a very similar piece at a show last year, labeled as Yaogangxian...
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