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30 Jul-14:58:22 Re: melanophlogite? (Luiz Oliveira)
30 Jul-14:51:23 Re: about a rutile epitaxy on hematite in quartz (Roger Warin)
30 Jul-03:36:43 The mizunaka collection - quartz (Am Mizunaka)
29 Jul-22:49:31 Re: collection of volkmar stingl (Volkmar Stingl)
29 Jul-21:35:18 Re: about a rutile epitaxy on hematite in quartz (Alfredo)
29 Jul-14:10:03 Re: collection of michael shaw (Michael Shaw)
28 Jul-21:29:06 Re: about a rutile epitaxy on hematite in quartz (Roger Warin)
28 Jul-21:24:20 Re: unknown quartz? (Steveb)
28 Jul-21:23:26 About a rutile epitaxy on hematite in quartz (Roger Warin)
28 Jul-15:43:19 Unknown quartz? (R Saunders)
28 Jul-13:15:33 Re: collection of volkmar stingl (Volkmar Stingl)
27 Jul-22:43:51 Re: collection of volkmar stingl (Volkmar Stingl)
27 Jul-13:17:17 Re: celestite geode in dolomite block? or what, halite? (Don Lapham)
26 Jul-15:38:37 Re: collection of firmo espinar (Firmo Espinar)
26 Jul-13:21:53 Re: collection of volkmar stingl (Volkmar Stingl)
25 Jul-16:30:28 Re: a mineralogical trip through italy by sante celiberti (Sante Celiberti)
25 Jul-11:09:26 Re: collection of volkmar stingl (Volkmar Stingl)
25 Jul-10:49:33 Re: celestite geode in dolomite block? or what, halite? (Corneldumitru)
25 Jul-08:13:07 Re: celestite geode in dolomite block? or what, halite? (Bob Morgan)
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The Mizunaka Collection
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Bob Morgan

Joined: 18 Jan 2018
Posts: 143
Location: Savannah, Georgia

Posted: Mar 23, 2021 08:40 Post subject: Re: The Mizunaka Collection

It's a double ender too! On the bottom end there are two sets of rhombohedral faces that reflect light across the twin boundary - another feature that makes this special. Also, is there heavier deposition of the green on alternate rhombohedral faces? or is this just an illusion the way the faces appear in the photo?

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 23, 2021 19:13 Post subject: Re: The Mizunaka Collection

Bob Morgan wrote:

It's a double ender too! On the bottom end there are two sets of rhombohedral faces that reflect light across the twin boundary - another feature that makes this special.
Also, is there heavier deposition of the green on alternate rhombohedral faces? or is this just an illusion the way the faces appear in the photo?

Thanks Bob!
There is a heavier deposition of the inclusion on the alternate faces.

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 23, 2021 23:55 Post subject: The Mizunaka Collection - Quartz Pseudomorph

QtzBarPseudo.jpg

Mineral:

Quartz

Locality:

Murray Mine, Independence Mountains District, Elko County, Nevada, USA

Dimensions:

6.6 x 6.0 cm

Description:

Quartz replacing barite.

Viewed:

3007 Time(s)

QtzBarPseudoTop.jpg

Mineral:

Quartz

Locality:

Murray Mine, Independence Mountains District, Elko County, Nevada, USA

Dimensions:

6.5 x 6.0 cm

Description:

Top view.

Viewed:

3002 Time(s)

QtzBarPseudoSide.jpg

Mineral:

Quartz

Locality:

Murray Mine, Independence Mountains District, Elko County, Nevada, USA

Dimensions:

6.5 x 6.0 cm

Description:

Side view.

Viewed:

3007 Time(s)

QtzBarPseudoBot.jpg

Mineral:

Quartz

Locality:

Murray Mine, Independence Mountains District, Elko County, Nevada, USA

Dimensions:

6.5 x 6.0 cm

Description:

Bottom of specimen.

Viewed:

3010 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 25, 2021 17:16 Post subject: The Mizunaka Collection - Spessartine

SpessRd.jpg

Mineral:

Spessartine

Locality:

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

Dimensions:

5.0 x 6.3 cm

Description:

Viewed:

2907 Time(s)

Volkmar Stingl

Joined: 23 Sep 2012
Posts: 404
Location: Innsbruck

Posted: Mar 26, 2021 00:09 Post subject: Re: The Mizunaka Collection

Wow! For Tongbei, it's an excellent and rare color of the garnets! Mostly they are typically orange. Very attractve piece! Volkmar

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 26, 2021 15:38 Post subject: Re: The Mizunaka Collection

Volkmar Stingl wrote:

Wow! For Tongbei, it's an excellent and rare color of the garnets! Mostly they are typically orange. Very attractve piece!

Volkmar

Thanks Volkmar! It is a different burnt orange or reddish/orange than the typical color.

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 27, 2021 15:39 Post subject: The Mizunaka Collection - Quartz

QtzTourPier2.jpg

Mineral:

Quartz, Tourmaline

Locality:

Dafoe Property, vein #1, Pierrepont, St. Lawrence County, New York, USA

Dimensions:

8.5 x 8.0 cm

Description:

Hematite stained quartz with clusters of tourmaline.

Viewed:

2711 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 29, 2021 16:20 Post subject: The Mizunaka Collection - Fluorite

FluoriteRoss1.jpg

Mineral:

Fluorite, Quartz

Locality:

Highway #17 roadcut, Rossport, Thunder Bay District, Ontario, Canada

Dimensions:

4.5 x 3.5 cm

Description:

Viewed:

2589 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 31, 2021 16:23 Post subject: The Mizunaka Collection - Quartz

SmkQtzArc.jpg

Mineral:

Quartz (variety smoky quartz)

Locality:

Adélie Land, Eastern Antarctica, Antarctica

Dimensions:

4.6 x 1.2 cm

Description:

Smoky quartz with some zones/phantoms that have a very faint amethyst tint.

Viewed:

2462 Time(s)

bob kerr

Joined: 13 Nov 2011
Posts: 324
Location: Monroeville PA

Posted: Mar 31, 2021 18:52 Post subject: Re: The Mizunaka Collection

ANTARCTICA??? This may be the hardest to collect and most expensive quartz point in the world!! bob

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Mar 31, 2021 21:15 Post subject: Re: The Mizunaka Collection

bob kerr wrote:

ANTARCTICA???

This may be the hardest to collect and most expensive quartz point in the world!!

bob

It may have been one of the hardest to collect and a very costly trip but it was a gift from Scott Werschky at Miner's Lunchbox.

Tobi

Joined: 07 Apr 2009
Posts: 3626
Location: Good Old Germany

Posted: Apr 01, 2021 03:41 Post subject: Re: The Mizunaka Collection

Really wonderful crystal from Antarctica, not a common locality! :-)

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Apr 01, 2021 14:33 Post subject: Re: The Mizunaka Collection

Tobi wrote:

Really wonderful crystal from Antarctica, not a common locality! :-)

Thanks Tobi!

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Apr 02, 2021 23:16 Post subject: The Mizunaka Collection -Fluorite

FluoriteQtzCalciteDG.jpg

Mineral:

Fluorite, Calcite, Quartz

Locality:

Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia

Dimensions:

17.5 x 11.3 cm

Description:

Viewed:

2243 Time(s)

Volkmar Stingl

Joined: 23 Sep 2012
Posts: 404
Location: Innsbruck

Posted: Apr 02, 2021 23:30 Post subject: Re: The Mizunaka Collection

Very nice! To date, I have not seen any combo like this from Dalnegorsk. I like it! Volkmar

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Apr 03, 2021 10:31 Post subject: Re: The Mizunaka Collection

Volkmar Stingl wrote:

Very nice! To date, I have not seen any combo like this from Dalnegorsk. I like it!

Volkmar

Thanks Volkmar!

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Apr 04, 2021 18:12 Post subject: The Mizunaka Collection - Rhodochrosite

RhodoChalBul.jpg

Mineral:

Rhodochrosite, Quartz (variety chalcedony)

Locality:

Laki, Rhodope Mountains, Laki Municipality, Plovdiv Oblast, Bulgaria

Dimensions:

10.5 x 6.5 cm

Description:

Viewed:

2097 Time(s)

RhodoChalBul.Detjpg.jpg

Mineral:

Rhodochrosite, Quartz (variety chalcedony)

Locality:

Laki, Rhodope Mountains, Laki Municipality, Plovdiv Oblast, Bulgaria

Description:

Detail of crystals.

Viewed:

2095 Time(s)

RhodoQtzChalBk.jpg

Mineral:

Rhodochrosite, Quartz (variety chalcedony)

Locality:

Laki, Rhodope Mountains, Laki Municipality, Plovdiv Oblast, Bulgaria

Dimensions:

10.5 x 6.5 cm

Description:

Back of specimen.

Viewed:

2077 Time(s)

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Apr 07, 2021 00:52 Post subject: The Mizunaka Collection - Quartz

QtzPBLO.jpg

Mineral:

Quartz

Locality:

Peñas Blancas Mine, Municipio San Pablo de Borbur, Western Emerald Belt, Boyacá Department, Colombia

Dimensions:

15.5 x 2.3 cm

Description:

Viewed:

1972 Time(s)

Volkmar Stingl

Joined: 23 Sep 2012
Posts: 404
Location: Innsbruck

Posted: Apr 07, 2021 02:12 Post subject: Re: The Mizunaka Collection

A really strange quartz! You could use it as chisel. ;-)

am mizunaka

Joined: 09 Apr 2010
Posts: 1549
Location: California

Posted: Apr 07, 2021 15:26 Post subject: Re: The Mizunaka Collection - Quartz

Volkmar Stingl wrote:

A really strange quartz! You could use it as chisel. ;-)

Thanks Volkmar! Others have said it looks like a letter opener ....

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