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The Mizunaka Collection
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Fiebre Verde




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PostPosted: Oct 11, 2018 21:56    Post subject: Re: The Mizunaka Collection  

am mizunaka wrote:
Fiebre Verde wrote:
A Bogotá-based mineral dealer I work with told me that the locality of these golden humboldtine included quartz is uncertain - it could be either from Boyacá or Santander.
He also claims there was only one single find that was made about 15 years ago.
The material on display in Denver could actually come from a collection.
I will probably get more information on this find in a few weeks time.
Gérard


Thanks for the information. The exact locality has been questioned by others.

I did some investigation in Bogota.
The first word of the locality name sounds a bit strange.
"Cabiche, Quípama, Occidente Province, Boyacá Department, Colombia"
"Cabiche" is one letter away from "Caliche"
https://en.wikipedia.org/wiki/Caliche
It's the same word in Spanish e.g. Caliche.
Is "Cabiche" a typo, in reference to the original clay-like deposit on the quartz before cleaning?
I showed the photo to four mineral dealers in Bogota.
2 dealers had never seen this kind of quartz
2 other dealers remember having seen similar material a long time ago.

Would be worth double checking with the dealers who had these quartz in Denver how they ended up in their hands...

Gérard
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am mizunaka




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PostPosted: Oct 11, 2018 22:01    Post subject: Re: The Mizunaka Collection  

Fiebre Verde wrote:
am mizunaka wrote:
Fiebre Verde wrote:
A Bogotá-based mineral dealer I work with told me that the locality of these golden humboldtine included quartz is uncertain - it could be either from Boyacá or Santander.
He also claims there was only one single find that was made about 15 years ago.
The material on display in Denver could actually come from a collection.
I will probably get more information on this find in a few weeks time.
Gérard


Thanks for the information. The exact locality has been questioned by others.

I did some investigation in Bogota.
The first word of the locality name sounds a bit strange.
"Cabiche, Quípama, Occidente Province, Boyacá Department, Colombia"
"Cabiche" is one letter away from "Caliche"
https://en.wikipedia.org/wiki/Caliche
It's the same word in Spanish e.g. Caliche.
Is "Cabiche" a typo, in reference to the original clay-like deposit on the quartz before cleaning?
I showed the photo to four mineral dealers in Bogota.
2 dealers had never seen this kind of quartz
2 other dealers remember having seen similar material a long time ago.

Would be worth double checking with the dealers who had these quartz in Denver how they ended up in their hands...

Gérard


Thanks for the update.
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am mizunaka




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PostPosted: Oct 12, 2018 01:06    Post subject: The Mizunaka Collection - Rhodochrosite  

Rhodochrosite "fingers".


RhodoFngrs.jpg
 Mineral: Rhodochrosite
 Locality:
Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province, South Africa
 Dimensions: 3.7 x 1.9 cm
 Description:
 Viewed:  8535 Time(s)

RhodoFngrs.jpg


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Michael Shaw
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PostPosted: Oct 12, 2018 10:57    Post subject: Re: The Mizunaka Collection  

Beautiful rhodo Mike.
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am mizunaka




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PostPosted: Oct 12, 2018 17:48    Post subject: Re: The Mizunaka Collection  

crosstimber wrote:
Beautiful rhodo Mike.


Thanks Michael!
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am mizunaka




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PostPosted: Oct 15, 2018 01:18    Post subject: The Mizunaka Collection - quartz  

Water clear quartz with inclusions of rutile. The rutile appears to have replaced or coated ilmenite or hematite crystals.


QtzRutSw.jpg
 Mineral: Quartz, Rutile
 Locality:
Punta d'Aurona, Brig District, Wallis (Valais), Switzerland
 Dimensions: 9.7 x 6.2 cm
 Description:
 Viewed:  8329 Time(s)

QtzRutSw.jpg



QtzRutSwDet.jpg
 Mineral: Quartz, Rutile
 Locality:
Punta d'Aurona, Brig District, Wallis (Valais), Switzerland
 Description:
Close up of inclusion on an exposed portion on the back of the specimen.
 Viewed:  8301 Time(s)

QtzRutSwDet.jpg


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am mizunaka




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PostPosted: Oct 19, 2018 15:31    Post subject: The Mizunaka Collection - Topaz  




TpzJpn.jpg
 Mineral: Topaz
 Locality:
Omi, Higashichikuma-gun, Nagano Prefecture, Chubu Region, Honshu Island, Japan
 Dimensions: 5.5 x 2.8 cm
 Description:
 Viewed:  8196 Time(s)

TpzJpn.jpg


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am mizunaka




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PostPosted: Oct 22, 2018 13:45    Post subject: The Mizunaka Collection - rhodochrosite  




RhodoQtzAT.jpg
 Mineral: Rhodochrosite, Quartz, Pyrite
 Locality:
Sunnyside Mine group (American Tunnel Mine), Bonita Peak, Gladstone, Eureka District, San Juan County, Colorado, USA
 Dimensions: 2.7 x 3.2 cm
 Description:
 Viewed:  8116 Time(s)

RhodoQtzAT.jpg


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am mizunaka




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PostPosted: Oct 23, 2018 18:20    Post subject: The Mizunaka Collection - quartz  

Quartz with a patch of tiny epidotes on the termination.


QtzAmePi.jpg
 Mineral: Quartz (variety amethyst), Epidote
 Locality:
Piedra Parada (Las Vigas), Municipio Tatatila, Veracruz (Veracruz de Ignacio de la Llave), Mexico
 Dimensions: 11.0 x 7.0 cm
 Description:
 Viewed:  8108 Time(s)

QtzAmePi.jpg


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am mizunaka




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PostPosted: Oct 24, 2018 15:45    Post subject: The Mizunaka Collection - Rhodochrosite  




RhodoPen.jpg
 Mineral: Rhodochrosite
 Locality:
Pederneira Claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil
 Dimensions: 15 x14 mm
 Description:
 Viewed:  8050 Time(s)

RhodoPen.jpg


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Tobi




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PostPosted: Oct 25, 2018 03:52    Post subject: Re: The Mizunaka Collection - Rhodochrosite  

am mizunaka wrote:
Rhodochrosite
Locality: Pederneira Claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil
Dimensions: 15 x14 mm
What a wonderful little gem! And you made a perfect photo of that perfect specimen, this is pure eye candy!
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am mizunaka




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PostPosted: Oct 25, 2018 14:44    Post subject: Re: The Mizunaka Collection - Rhodochrosite  

Tobi wrote:
am mizunaka wrote:
Rhodochrosite
Locality: Pederneira Claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil
Dimensions: 15 x14 mm
What a wonderful little gem! And you made a perfect photo of that perfect specimen, this is pure eye candy!


Thanks Tobi! It is a tiny jewel.
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am mizunaka




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PostPosted: Oct 26, 2018 22:07    Post subject: The Mizunaka Collection - Fluorite  




FluoriteSw1.jpg
 Mineral: Fluorite
 Locality:
Grimsel area, Hasli Valley, Bern, Switzerland
 Dimensions: 5.2 x 3.9 cm
 Description:
 Viewed:  7858 Time(s)

FluoriteSw1.jpg


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Tobi




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PostPosted: Oct 28, 2018 04:47    Post subject: Re: The Mizunaka Collection  

Pink fluorites are always a pleasure, the more in this perfect quality, the crystals look completely transparent ...
Fluorite at its best!
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am mizunaka




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PostPosted: Oct 29, 2018 17:42    Post subject: Re: The Mizunaka Collection  

Tobi wrote:
Pink fluorites are always a pleasure, the more in this perfect quality, the crystals look completely transparent ...
Fluorite at its best!


Thanks Tobi! The fluorite are very clear.
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PostPosted: Oct 29, 2018 18:12    Post subject: The Mizunaka Collection - Quartz  




QtzDumPlate.jpg
 Mineral: Quartz, Dumortierite
 Locality:
Vaca Morta Quarry, Serra da Vereda, Boquira, Bahia, Northeast Region, Brazil
 Dimensions: 10.2 x 6.4 cm
 Description:
 Viewed:  7675 Time(s)

QtzDumPlate.jpg



UpClose.jpg
 Mineral: Quartz, Dumortierite
 Locality:
Vaca Morta Quarry, Serra da Vereda, Boquira, Bahia, Northeast Region, Brazil
 Description:
Close up of inclusions.
 Viewed:  7691 Time(s)

UpClose.jpg


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am mizunaka




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PostPosted: Oct 31, 2018 13:10    Post subject: The Mizunaka Collection - Tourmaline  




ElbaiteCG.jpg
 Mineral: Tourmaline (Group)
 Locality:
Kivu, Democratic Republic of the Congo (Zaire)
 Dimensions: 2.2 x 1.9 cm
 Description:
Photographed with electronic flash.
 Viewed:  7622 Time(s)

ElbaiteCG.jpg



ElbCGDay.jpg
 Mineral: Tourmaline (Group)
 Locality:
Kivu, Democratic Republic of the Congo (Zaire)
 Dimensions: 2.2 x 1.9 cm
 Description:
Photographed in daylight.
 Viewed:  7580 Time(s)

ElbCGDay.jpg


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PostPosted: Nov 01, 2018 15:21    Post subject: Re: The Mizunaka Collection - Kermesite  




KermesiteSm.jpg
 Mineral: Kermesite
 Locality:
Kermesite occurrence, Damingshan Range, Dafeng, Shanglin, Nanning Prefecture, Guangxi Province, China
 Dimensions: 4.2 x 2.2 cm
 Description:
 Viewed:  7537 Time(s)

KermesiteSm.jpg


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PostPosted: Nov 02, 2018 22:42    Post subject: The Mizunaka Collection - Quartz  




QtzMexRed.jpg
 Mineral: Quartz, Calcite, Hematite
 Locality:
Piedras Verdes Mine, Piedras Verdes, Municipio Álamos, Sonora, Mexico
 Dimensions: 10.8 x 3.3 cm
 Description:
 Viewed:  7419 Time(s)

QtzMexRed.jpg


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PostPosted: Nov 04, 2018 15:57    Post subject: The Mizunaka Collection - Rhodochrosite  




RhodoIlv1.jpg
 Mineral: Rhodochrosite, Ilvaite
 Locality:
Taxco de Alarcón, Municipio Taxco, Guerrero, Mexico
 Dimensions: 10.7 x 5.8 cm
 Description:
 Viewed:  7269 Time(s)

RhodoIlv1.jpg


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