FMF - Friends of Minerals Forum, discussion and message board

[Tobi]

Fluorite and one single galena, coated by siderite:

[Jesse Fisher]

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.

[Jesse Fisher]

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.

[Jesse Fisher]

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.

[Bob Harman]

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

[Kevin Schofield]

[Tobi]

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!

[Jesse Fisher]

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.

[Tobi]

Wonderful specimen!

[Jesse Fisher]

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.

[Tobi]

I'm so in love with my new Greenlaws fluorite, it should not be missing in this journey:

[Jesse Fisher]

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.

[Tobi]

[Jesse Fisher]

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.

[Jesse Fisher]

Something new from the Diana Marie. From the "Hidden Forest" pocket, discovered near the intersection of the Sutcliffe and Greenbank veins in late 2021.