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Jesse Fisher
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Posted: Mar 01, 2018 14:36 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Two cross veins in the Rogerley system are exposed in an extension of the Rogerley quarry, NW of the main mine site. The larger of the two has been named the "Sutcliffe Vein" in honor of Lindsay Greenbank's partner and co-discoverer of the Rogerley, Mick Sutcliffe. During the early to mid 1970s the two collected a number of specimens from flats adjoining the vein, which was at the time referred to by Lindsay as the "Rogerley #2 vein." Purple is more common at this location than at the Rogerley proper, and some of the best have a purple core covered by a green rind.
In the fall of 2017 Ian Bruce (Crystal Classics) developed the vein as an open cast and named his workings the "Diana Marie Mine." A good number of specimens were recovered and were available at the Munich and Tucson shows.
Mineral: | Fluorite |
Locality: | Rogerley Mine, Sutcliffe vein, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | FOV = 6 cm |
Description: |
Bicolor penetration twin recovered in the mid 1970s. Ex Mick Sutcleffe collection |
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Locality: | Rogerley Mine, Sutcliffe vein, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Description: |
A view of the western extension of the Rogerley Quarry, taken in 2002. The Sutcliffe Vein is the larger of the two ribs of rock extending from the quarry face. The smaller rib, to the left of the Sutcliffe has never to my knowledge been prospected. I understand that the site looks a bit different now, after recent work. |
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colin robinson
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Posted: Mar 01, 2018 15:06 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Fluorite from Rogerley no. 2 (Sutcliffe) vein. Main crystal about 12mm. Self collected.
Mineral: | Fluorite |
Locality: | Rogerley Mine, Sutcliffe vein, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 12mm |
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colin robinson
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Posted: Mar 01, 2018 15:11 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Fluorite from Middlegrove vein, Killhope mine. Glassy crystals to 8-9mm. Recovered from a vein outcrop.
Mineral: | Fluorite |
Locality: | Killhope Mine, Middlegrove vein, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 8mm |
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Jesse Fisher
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Posted: Apr 02, 2018 00:24 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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A bit of nostalgia - specimen was recovered in May 1999 from the first workings at the Black Sheep Pocket.
Mineral: | Fluorite, Galena, Quartz |
Locality: | Rogerley Mine, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 5x4x4 cm |
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Tobi
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Posted: Apr 02, 2018 05:27 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Perfect, Jesse :-)
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Tobi
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Posted: May 12, 2018 07:29 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Fluorite and one single galena, coated by siderite:
Mineral: | Siderite, Galena, Fluorite |
Locality: | Boltsburn Mine, Rookhope District, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | Specimen size 11 cm, largest galena 18 mm, largest fluorite 18 mm |
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Jesse Fisher
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Posted: Sep 27, 2018 00:20 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Another Heights Mine specimen, well-formed cube-octahedral galena crystals with a few twinned fluorites. I was told that the specimen was collected in the late 1960s, so not sure if it should be labeled as from the mine or the quarry. I haven't seen galena crystals that sharp from Heights very often.
Mineral: | Galena, Fluorite |
Locality: | Heights Quarry, Westgate, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 9x7x4 cm overall size |
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Jesse Fisher
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Posted: Mar 04, 2019 14:28 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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A classic Boltsburn fluorite twin, found at the Tucson show last month. Most likely recovered circa 1910-1920, but unfortunately no old labels or historical information accompanied the specimen.
Mineral: | Fluorite with Siderite |
Locality: | Boltsburn Mine, Rookhope District, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 8x8x7 cm overall size |
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![Boltsburn-6844r.JPG](files/thumbs/t_boltsburn_6844r_128.jpg)
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Jesse Fisher
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Posted: Jul 07, 2019 11:09 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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A recent find. In the above photo of the West Rogerley Quarry, I mentioned a smaller, unprospected vein next to the Sutcliffe vein, where Ian Bruce has established the Diana Marie Mine. Earlier this year his mining crew drove a crosscut from the Sutcliffe vein to explore this vein, which they are calling the "Rivet Catcher Vein." A small cavity of yellow fluorite partially overgrown by quartz was found. An unusual color for fluorite from the Rogerley vein system.
Mineral: | Fluorite and Quartz |
Locality: | Rogerley West Quarry, Rivet Catcher vein, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 12x11x5 cm |
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![Rogerley-7003r.JPG](files/thumbs/t_rogerley_7003r_187.jpg)
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Bob Harman
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Posted: Jul 07, 2019 13:06 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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I just spent the past 30 minutes or so on this hot humid afternoon looking thru the pages of this thread.
All great UK specimens!
I do have a couple of comments tho and one question, all related to size measurements. Throughout this and other threads the different posters use both mm and cm. Sometimes the specimen is given in cm, other times in mm, apparently without real important meaning. One posting from Tobi on 12 May 2018 used both cm and mm within the same specimen measurements.
For the larger specimens/crystals, say greater than about 2-4 cm, anyone have any thoughts on this or is it just personal preference and of no further meaning, both being equally acceptable, even using cm and mm within the same specimen's measurements.
BOB
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Kevin Schofield
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Posted: Jul 07, 2019 14:03 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Bob Harman wrote: | I just spent the past 30 minutes or so on this hot humid afternoon looking thru the pages of this thread.
All great UK specimens!
I do have a couple of comments tho and one question, all related to size measurements. Throughout this and other threads the different posters use both mm and cm. Sometimes the specimen is given in cm, other times in mm, apparently without real important meaning. One posting from Tobi on 12 May 2018 used both cm and mm within the same specimen measurements.
For the larger specimens/crystals, say greater than about 2-4 cm, anyone have any thoughts on this or is it just personal preference and of no further meaning, both being equally acceptable, even using cm and mm within the same specimen's measurements.
BOB |
Bob,
my guess is that it is a question of wishing to be more accurate when describing a detail (crystal size) rather than a generality (specimen size)...for specimen sizes, it is probably pointless to be so exacting as to quote to fractions of a centimetre When speaking of the size of a crystal, however, one may wish to be more precise in ones description, and would as a result also measure more accurately. There may also be some psychology involved (deliberate or subconscious) in that use of millimetric terminology carries a subtle implication that one has indeed measured with the requisite accuracy (17mm), rather than "just" saying 1.7cm.
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Tobi
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Posted: Jul 08, 2019 02:35 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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A very beautiful fluorite from Rogerley West Quarry, Jesse. I know the dark green ones are highly desired, but I think this one is also very nice, the coating makes a wonderful contrast. I really like it!
Kevin Schofield wrote: | Bob Harman wrote: | I do have a couple of comments tho and one question, all related to size measurements. Throughout this and other threads the different posters use both mm and cm. Sometimes the specimen is given in cm, other times in mm, apparently without real important meaning. One posting from Tobi on 12 May 2018 used both cm and mm within the same specimen measurements. For the larger specimens/crystals, say greater than about 2-4 cm, anyone have any thoughts on this or is it just personal preference and of no further meaning, both being equally acceptable, even using cm and mm within the same specimen's measurements. | Bob,
my guess is that it is a question of wishing to be more accurate when describing a detail (crystal size) rather than a generality (specimen size)...for specimen sizes, it is probably pointless to be so exacting as to quote to fractions of a centimetre When speaking of the size of a crystal, however, one may wish to be more precise in ones description, and would as a result also measure more accurately. There may also be some psychology involved (deliberate or subconscious) in that use of millimetric terminology carries a subtle implication that one has indeed measured with the requisite accuracy (17mm), rather than "just" saying 1.7cm. | I guess we all know the metric system so it should be equal if a crystal size is described with 17mm or 1,7cm. I think I will keep my way of describing specimens :-)
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Jesse Fisher
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Posted: Jul 08, 2019 10:37 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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My inclination is to use mm only when describing something smaller than 1 cm, but this is just personal preference. I think we're pretty safe in assuming that everyone using FMF knows that 10 mm = 1 cm, and that we will use metric rather than imperial measurements.
But back to the minerals, here is an example of some of the recent produce from the Diana Marie Mine (Sutcliffe Vein). This was acquired at the Munich Show last October. The largest crystal is 2.6 cm on edge.
Mineral: | Fluorite with Calcite |
Locality: | Rogerley Mine, Sutcliffe vein, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 11x7x5 cm overall size |
Description: |
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29249 Time(s) |
![Sutcliffe-7013r.JPG](files/thumbs/t_sutcliffe_7013r_175.jpg)
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Tobi
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Posted: Jul 09, 2019 01:45 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Wonderful specimen!
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Jesse Fisher
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Posted: Dec 04, 2019 11:39 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Something else new from the Sutcliffe vein/Diana Marie Mine. Good specimens of purple fluorite are fairly rare from the Rogerley vein system. The largest crystal is 3.5 cm on edge. Recovered from the "Heather Pocket" on 25 Sept., 2019.
Mineral: | Fluorite |
Locality: | Rogerley Mine, Sutcliffe vein, Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 12x9x7 cm overall size |
Description: |
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![Surcliffe-0049r.JPG](files/thumbs/t_surcliffe_0049r_846.jpg)
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Tobi
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Posted: Apr 18, 2020 10:17 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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I'm so in love with my new Greenlaws fluorite, it should not be missing in this journey:
Mineral: | Fluorite |
Locality: | Greenlaws Mine, Daddry Shield, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | Specimen size 18 cm, largest crystal 8 cm |
Description: |
original photo © Günther Gerndt |
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![GreenlFLUO.JPG](files/thumbs/t_greenlfluo_152.jpg)
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Jesse Fisher
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Posted: Nov 09, 2020 11:45 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Some recent finds at the Eastgate Cement Quarry (aka "Blue Circle"). Ian Bruce has gained access to the property and is having some luck. He has named the workings, which are so far open-cast, the "Lady Annabella" mine. I understand that there are at least three veins exposed, which are producing a variety of colors, from the green the location is known for to some interesting yellows. This one was recovered last August.
Mineral: | Fluorite, Quartz, and Galena |
Locality: | Blue Circle Cement Quarry (Eastgate Quarry), Eastgate, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 7x5x4 cm overall size. |
Description: |
Recently recovered specimen from the Eastgate Cement Quarry. |
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Tobi
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Posted: Nov 10, 2020 02:51 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Jesse Fisher wrote: | Fluorite, Quartz, and Galena
Blue Circle Cement Quarry, Eastgate, Weardale, North Pennines Orefield, County Durham, England / United Kingdom
7x5x4 cm overall size. | Beautiful combination of three wonderful minerals :-)
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Jesse Fisher
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Posted: Mar 08, 2022 21:18 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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An interesting fluorite from the Blackdene Mine. Likely recovered in the early 1970s from workings on the Slitt Vein. Ex Greenbank, David Green, and Tim Sherburn collections. Acquired at the Tucson show, February 2022.
Mineral: | Fluorite and Quartz |
Locality: | Blackdene Mine, Ireshopeburn, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 8x5x4 cm overall size |
Description: |
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Jesse Fisher
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Posted: Sep 02, 2022 16:22 Post subject: Re: A mineralogical trip through the regions of the UK - England / County Durham |
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Something new from the Diana Marie. From the "Hidden Forest" pocket, discovered near the intersection of the Sutcliffe and Greenbank veins in late 2021.
Mineral: | Fluorite |
Locality: | Rogerley Mine, Diana Maria Mine (Sutcliffe Vein) , Frosterley, Weardale, North Pennines Orefield, County Durham, England / United Kingdom | ![](templates/FabreMinerals/images/LocalidadesGreen.png) |
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Dimensions: | 5x3x3 cm |
Description: |
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![DianaMarie-7390r.JPG](files/thumbs/t_dianamarie_7390r_127.jpg)
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