View previous topic :: View next topic |
Author |
Message |
Fiebre Verde
Joined: 11 Sep 2013
Posts: 942
Location: Paris Area
|
Posted: 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
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: 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.
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 12, 2018 01:06 Post subject: The Mizunaka Collection - Rhodochrosite |
|
|
Rhodochrosite "fingers".
Mineral: | Rhodochrosite |
Locality: | Wessels Mine, Hotazel, Kalahari manganese field (KMF), Northern Cape Province, South Africa | |
|
Dimensions: | 3.7 x 1.9 cm |
Description: |
|
Viewed: |
16635 Time(s) |
|
|
|
Back to top |
|
|
Michael Shaw
Site Admin
Joined: 30 Apr 2008
Posts: 2081
Location: Oklahoma
|
Posted: Oct 12, 2018 10:57 Post subject: Re: The Mizunaka Collection |
|
|
Beautiful rhodo Mike.
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 12, 2018 17:48 Post subject: Re: The Mizunaka Collection |
|
|
crosstimber wrote: | Beautiful rhodo Mike. |
Thanks Michael!
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: 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.
Mineral: | Quartz, Rutile |
Locality: | Punta d'Aurona, Brig District, Wallis (Valais), Switzerland | |
|
Dimensions: | 9.7 x 6.2 cm |
Description: |
|
Viewed: |
16416 Time(s) |
|
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: |
16384 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 19, 2018 15:31 Post subject: The Mizunaka Collection - Topaz |
|
|
Mineral: | Topaz |
Locality: | Omi, Higashichikuma-gun, Nagano Prefecture, Chubu Region, Honshu Island, Japan | |
|
Dimensions: | 5.5 x 2.8 cm |
Description: |
|
Viewed: |
16275 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 22, 2018 13:45 Post subject: The Mizunaka Collection - rhodochrosite |
|
|
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: |
16194 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 23, 2018 18:20 Post subject: The Mizunaka Collection - quartz |
|
|
Quartz with a patch of tiny epidotes on the termination.
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: |
16199 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 24, 2018 15:45 Post subject: The Mizunaka Collection - Rhodochrosite |
|
|
Mineral: | Rhodochrosite |
Locality: | Pederneira claim, São José da Safira, Governador Valadares, Vale do Rio Doce, Minas Gerais, Brazil | |
|
Dimensions: | 15 x14 mm |
Description: |
|
Viewed: |
16145 Time(s) |
|
|
|
Back to top |
|
|
Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
|
Posted: 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!
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: 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.
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 26, 2018 22:07 Post subject: The Mizunaka Collection - Fluorite |
|
|
Mineral: | Fluorite |
Locality: | Grimsel area, Hasli Valley, Bern, Switzerland | |
|
Dimensions: | 5.2 x 3.9 cm |
Description: |
|
Viewed: |
15983 Time(s) |
|
|
|
Back to top |
|
|
Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4112
Location: Germany
|
Posted: 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!
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: 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.
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 29, 2018 18:12 Post subject: The Mizunaka Collection - Quartz |
|
|
Mineral: | Quartz, Dumortierite |
Locality: | Vaca Morta Quarry, Serra da Vereda, Boquira, Bahia, Northeast Region, Brazil | |
|
Dimensions: | 10.2 x 6.4 cm |
Description: |
|
Viewed: |
15789 Time(s) |
|
Mineral: | Quartz, Dumortierite |
Locality: | Vaca Morta Quarry, Serra da Vereda, Boquira, Bahia, Northeast Region, Brazil | |
|
Description: |
|
Viewed: |
15765 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Oct 31, 2018 13:10 Post subject: The Mizunaka Collection - Tourmaline |
|
|
Mineral: | Tourmaline (Group) |
Locality: | Kivu, Democratic Republic of the Congo (Zaire) | |
|
Dimensions: | 2.2 x 1.9 cm |
Description: |
Photographed with electronic flash. |
|
Viewed: |
15724 Time(s) |
|
Mineral: | Tourmaline (Group) |
Locality: | Kivu, Democratic Republic of the Congo (Zaire) | |
|
Dimensions: | 2.2 x 1.9 cm |
Description: |
Photographed in daylight. |
|
Viewed: |
15660 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Nov 01, 2018 15:21 Post subject: Re: The Mizunaka Collection - Kermesite |
|
|
Mineral: | Kermesite |
Locality: | Kermesite occurrence, Damingshan Range, Dafeng, Shanglin, Nanning Prefecture, Guangxi Zhuang Autonomous Region, China | |
|
Dimensions: | 4.2 x 2.2 cm |
Description: |
|
Viewed: |
15615 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Nov 02, 2018 22:42 Post subject: The Mizunaka Collection - Quartz |
|
|
Mineral: | Quartz, Calcite, Hematite |
Locality: | Piedras Verdes Mine, Piedras Verdes, Municipio Álamos, Sonora, Mexico | |
|
Dimensions: | 10.8 x 3.3 cm |
Description: |
|
Viewed: |
15470 Time(s) |
|
|
|
Back to top |
|
|
am mizunaka
Joined: 09 Apr 2010
Posts: 2053
Location: USA
|
Posted: Nov 04, 2018 15:57 Post subject: The Mizunaka Collection - Rhodochrosite |
|
|
Mineral: | Rhodochrosite, Ilvaite |
Locality: | Taxco de Alarcón, Municipio Taxco, Guerrero, Mexico | |
|
Dimensions: | 10.7 x 5.8 cm |
Description: |
|
Viewed: |
15364 Time(s) |
|
|
|
Back to top |
|
|
|