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Sante Celiberti
Joined: 04 Oct 2019
Posts: 699
Location: Tuscany
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Posted: Jan 08, 2022 05:09 Post subject: Re: The Mizunaka Collection |
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Fantastic preferential zoning! ;-)
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 08, 2022 18:47 Post subject: Re: The Mizunaka Collection |
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Sante Celiberti wrote: | Fantastic preferential zoning! ;-) |
Thanks Sante!
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 09, 2022 18:58 Post subject: The Mizunaka Collection - Quartz Scepter |
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Mineral: | Quartz, Calcite, Dolomite |
Locality: | Treasure Mountain Diamond Mine, Little Falls, Herkimer County, New York, USA | |
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Dimensions: | 5.2 x 3.6 cm |
Description: |
Black stem quartz scepter on matrix with etched calcite and dolomite. |
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7681 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 11, 2022 17:16 Post subject: The Mizunaka Collection - Fluorite |
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Mineral: | Fluorite, Quartz |
Locality: | Chenzhou Prefecture, Hunan Province, China | |
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Dimensions: | 3.7 x 1.2 cm |
Description: |
Fluorite on a matrix covered by tiny included quartz crystals. There is an "invisible" fluorite immediately to the right of the large crystal. |
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7578 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1347
Location: Cambridge
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Posted: Jan 12, 2022 13:05 Post subject: Re: The Mizunaka Collection - Fluorite |
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It really is almost invisible am mizunaka wrote: | invisible crystal to the right |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 12, 2022 16:51 Post subject: Re: The Mizunaka Collection - Fluorite |
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James Catmur wrote: | It really is almost invisible am mizunaka wrote: | invisible crystal to the right |
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There is also another one to the left of the small "invisible" crystal. It is a shorter but wider crystal.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 13, 2022 02:31 Post subject: The Mizunaka Collection - Quartz |
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Mineral: | Quartz, Dolomite, Chalcopyrite |
Locality: | Aughamore Quarry, Aughamore, County Sligo, Connacht, Ireland | |
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Dimensions: | 13.2 x 9.5 cm |
Description: |
Label indicates that is quartz after coral pseudomorph. Very unusual. |
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7436 Time(s) |
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Mineral: | Quartz, Dolomite, Chalcopyrite |
Locality: | Aughamore Quarry, Aughamore, County Sligo, Connacht, Ireland | |
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7438 Time(s) |
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James Catmur
Site Admin
Joined: 14 Sep 2006
Posts: 1347
Location: Cambridge
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Posted: Jan 13, 2022 04:55 Post subject: Re: The Mizunaka Collection - Quartz |
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Could be an epimorph I guess? - I have one from Castleton, Derbyshire which is a fluorite epimorph of a coral fossil
People do seem to mix the two terms (epi and pseudo) up
am mizunaka wrote: | Label indicates that is quartz after coral pseudomorph. Very unusual |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 13, 2022 15:31 Post subject: Re: The Mizunaka Collection - Quartz |
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James Catmur wrote: | Could be an epimorph I guess? - I have one from Castleton, Derbyshire which is a fluorite epimorph of a coral fossil
People do seem to mix the two terms (epi and pseudo) up
am mizunaka wrote: | Label indicates that is quartz after coral pseudomorph. Very unusual |
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This is true. Mindat has a lengthy thread discussing this issue.
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 15, 2022 22:19 Post subject: The Mizunaka Collection - Thin Quartz |
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Mineral: | Quartz, Calcite, Muscovite |
Locality: | Rist Mine, Hiddenite, Alexander County, North Carolina, USA | |
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Dimensions: | 7.5 x 4.3 cm |
Description: |
Flat quartz crystal 2.8 mm thick with calcite and muscovite. |
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7236 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 17, 2022 22:42 Post subject: The Mizunaka Collection - Quartz |
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Mineral: | Quartz (variety amethyst), Quartz |
Locality: | South Lake Tahoe, El Dorado County, California, USA | |
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Dimensions: | 7.8 x 4.9 cm |
Description: |
Double terminated crystal split between amethyst and quartz. |
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7052 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 18, 2022 18:36 Post subject: The Mizunaka Collection - Smoky Quartz |
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Mineral: | Quartz (variety smoky quartz) |
Locality: | Galenstock Mountain, Tiefenbach, Urseren, Uri, Switzerland | |
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Dimensions: | 9.9 x 7.4 cm |
Description: |
Not apparent in the photo but the large middle crystal at the top is a gwindel with a very slight twist. |
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6988 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 20, 2022 23:10 Post subject: The Mizunaka Collection - Quartz with Calcite |
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Mineral: | Quartz (variety smoky quartz), Calcite |
Locality: | Lowville, Lewis County, New York, USA | |
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Dimensions: | 4.4 x 5.2 cm |
Description: |
Smoky quartz sprinkled with calcite crystals. |
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6846 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 23, 2022 02:49 Post subject: The Mizunaka Collection - Amethyst |
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Mineral: | Quartz (variety amethyst), Fluorite |
Locality: | Highway #17 roadcut, Rossport, Thunder Bay District, Ontario, Canada | |
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Dimensions: | 10.5 x 5.4 cm |
Description: |
Amethyst on fluorite. Some of the amethyst have smoky hues. |
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6772 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Jan 25, 2022 03:49 Post subject: The Mizunaka Collection - Quartz with Fluorite |
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Mineral: | Quartz, Fluorite |
Locality: | Amborompotsy, Ambatofinandrahana District, Amoron'i Mania Region, Madagascar | |
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Dimensions: | 11.1 x 3.2 cm |
Description: |
Quartz included with fluorite. Some voids are present in the quartz where there was once fluorite. |
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6678 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Feb 03, 2022 23:43 Post subject: Re: The Mizunaka Collection - Elbaite |
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Mineral: | Elbaite, Albite |
Locality: | Coronel Murta, Jequitinhonha, Minas Gerais, Brazil | |
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Dimensions: | 3.6 x 3.4 cm |
Description: |
Multi hued elbaite surrounded at the base with albite. This image was shot with electronic flash. |
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6454 Time(s) |
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Mineral: | Elbaite, Albite |
Locality: | Coronel Murta, Jequitinhonha, Minas Gerais, Brazil | |
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Dimensions: | 3.6 x 3.4 cm |
Description: |
Multi hued elbaite surrounded at the base with albite. This image was shot with LED lights. |
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6445 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Feb 05, 2022 00:28 Post subject: The Mizunaka Collection - Quartz with Epidote |
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Quartz from Smerwick
Mineral: | Quartz, Epidote |
Locality: | Smerwick Harbour, Smerwick, County Kerry, Ireland | |
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Dimensions: | 8.4 x 4.6 cm |
Description: |
Epidote on and included in the quartz. |
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6366 Time(s) |
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Mineral: | Quartz, Epidote |
Locality: | Smerwick Harbour, Smerwick, County Kerry, Ireland | |
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Description: |
Detail of epidote on and in the quartz. |
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6335 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Feb 05, 2022 15:25 Post subject: The Mizunaka Collection - Fluorite |
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The locality given was Britten Road Quarry, Rochester, Monroe County, New York. This locality not listed on MIndat. Does anyone have any information on this locality?
Mineral: | Fluorite, Dolomite, Sphalerite |
Locality: | Rochester, Monroe County, New York, USA | |
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Dimensions: | 8.1 x 7.2 cm |
Description: |
Very pale blue fluorite with lustrous sphalerite and dolomite. |
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6299 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2040
Location: USA
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Posted: Feb 07, 2022 02:18 Post subject: The Mizunaka Collection - Agate |
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Mineral: | Quartz (variety agate) |
Locality: | Mount Hay, Wycarbah, Rockhampton Region, Queensland, Australia | |
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Dimensions: | 7.8 x 6.2 cm |
Description: |
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6193 Time(s) |
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Tobi
Site Admin
Joined: 07 Apr 2009
Posts: 4108
Location: Germany
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Posted: Feb 07, 2022 02:27 Post subject: Re: The Mizunaka Collection |
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Beautiful symmetric agate, the colour scheme reminds me of the ones from the famous German agate locality of St. Egidien in Saxony.
(Or, for those who like Lord of the Rings: It's also slightly reminiscent of the Eye of Sauron ;-))
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