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  #481  
Old 10-22-2022, 11:25 AM
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Default Still on the topic of Scapolite samples......

KT now has added to the Royal Fluorescent Mineral Collection two more examples of scapolite, another one from Badakhshan, Afghanistan and one from Sterling Hill Mine, Ogdensburg, Sussex Co., New Jersey!

The first 3 pictures are of small clear crystal sections of scapolite from Afghanistan. The first pic is natural light, the second is in SWUV 254nm, and the third is in LWUV 365nm. The longest of these crystal sections is 5/8ths of an inch.

The last two pictures are of a scapolite specimen from New Jersey. The first picture is natural light and the second is SWUV 254nm. No response to LW. This specimen is a small hand sized piece.

Enjoy!
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  #482  
Old 10-24-2022, 04:45 PM
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Default Here are a couple of calcite specimens from New Jersey

Both from the same locality...Sterling Hill Mine, Ogdensburg, Sussex Co., NJ.

This shows that even at the same locality there can be differences in the common mineral, differences that might easily be overlooked without using UV lights!

The first specimen has two pictures and is a salmon colored calcite, less than 2" across. The first picture is in natural light. The second picture is in SW 254nm. It does not fluoresce in LW 365nm.

The next specimen has 3 pictures, and is coarsely grained white calcite with a vein of white calcite crosscutting it. It is fist sized. The first picture is in natural light. Second picture is in LW 365nm light, and shows 2 colorations of calcite, a reddish orange and blue white. The vein is slightly different composition, resulting in the blue white color. Finally the 3rd picture was taken using SW 254nm. Note the different SW color than the first piece (pinkish red) versus this piece (orangish red). Also willemite, the mineral fluorescing green in this SW view does not fluoresce in LWUV. So there are some notable differences in the two specimens when looking at them with UV lighting!

Hope you enjoy!
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  #483  
Old 10-27-2022, 04:42 PM
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Default Today in the Royal Mailbox......

This specimen of Fluorapatite on quartz crystals arrived all the way from Afghanistan, via a Pakistani eBay dealer!

The specimen is only 1 inch long but it is mighty in SW 254nm fluorescence!

KT had been waiting nearly 3 weeks for it to get here, and now that has arrived it has been photographed and posted here for YOUR pleasure in viewing!

The specimen is from the Dara-e-Pech pegmatite field, Dara-e-Pech District, Paprook, Kunar Province, Afghanistan. Lots of nice specimens coming from this region presently!

Picture 1 is in natural light, and Picture 2 is in SW 254nm light. It also fluoresces in LW 365nm, but the picture was not so good, so KT did not bother to keep it to post. KT has not posted a nice yellow fluorescent mineral in awhile!

Enjoy!
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  #484  
Old 10-28-2022, 04:29 PM
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Default Another scapolite specimen

This single 15 carat crystal is from a marble deposit located in the Morogoro Ulu guru Mountains, Morogoro Region, Tanzania. Many of these transparent pale yellow crystals are sent to either India or Pakistan to be cut into small gemstones for collectors. On first look the crystal appears to be colorless, but on a white background it is pale yellow. The length of the crystal is 0.60", so KT was able to place it diagonally under his Chinese USB led microscope and examine it at the lowest magnification of 10X to see both the termination and nearly all the length of the crystal.

There are 4 photographs. The first is in natural light. The second is in LW 365nm light. The third is in filtered LW 365nm, and finally, the fourth is in SW 254nm light. The last picture was a problem to photograph as the fluorescence was very pale and not visible on a black background, but when KT held it in his hand the pink fluorescence was obvious to the eye. KT tried to use a white background, but all of them either fluoresced bluish white, washing out the pale pink color to the camera, or reflected too much blue from the UV lamp, also washing out the pale pink fluorescence. Finally, KT found a non fluorescent yellow paper and the pink showed up nicely in the photograph. KT sometimes has to experiment to get the picture that shows the color that the eye sees naturally! This is simply because the camera response is not exactly the same as the eye response to different wavelengths of light.

Anyway, enjoy the pictures!
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  #485  
Old 10-31-2022, 06:13 PM
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Default Continuing with the scapolite theme!

Here we have 2 more scapolite specimens from the Koksha Valley, Kuran Wah Mujhan District, Badakhstan, Afghanistan. These have likely been irradiated to make them dark blue, but for KT that is no bother. People have been treating gemstones to enhance them for over 200 years, and even changing colorless quartz crystal to smoky crystal via radiation since the mid 1950s.

The first pictures are of a single double terminated crystal, about 1" long in natural light, filtered LW 365nm light, and SW 254nm light. And an attractive specimen it is!

The second batch of pictures are of a cluster of crystals, with some terminations, measuring ~ 3" in length. The first image is in natural light, the second in SW 254nm, the third in unfiltered LW 365nm, and the last picture is in filtered LW 365nm. KT prefers the filter images as they look more like what the eye sees than what the camera image captures for the color! The filter KT uses is pale yellow and it also removes the fluorescent blue white specks of house dust from the image! HA HA

Enjoy!
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  #486  
Old 11-04-2022, 05:48 PM
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Default Another specimen from a far off country! LOL

The specimen, pictured below, arrived today at the Castle from a German dealer and after looking at the very sparse locality info, KT looked up the town name and country in mindat.org. Hmmm, there were a dozen or so sites listed close to that community, so His Majesty ran down every one individually, and none of them had the three minerals present that I was looking for....in fact none of them had any of the 3 minerals present.

So His Majesty wrote the dealer via email (ain't it wonderful!) and asked if he had a better location as there was nothing on mindat.org in the vicinity of that town that listed the following 3 minerals: scapolite, diopside, and phlogopite. After lunch KT got the answer back from him that although that was the locality name furnished by the fellow he had purchase a volume of fluorescent minerals from, he had had his own doubts about it and after some considerable effort, he thinks he has the right location: Malaschofsky Quarry, Krems-Land District, Lower Austria, Austria. KT looked that up and sure enough it is an active marble quarry, with all of those and more minerals listed on Mindat.org.

His Majesty likes this specimen due to the color contrast of the two principle fluorescing minerals! Scapolite is a distinctive orange in LW 365nm and Diopside is a fluorescent blue in both LW 365nm and SW 254nm! The scapolite is not responsive in 254nm.

So we have 4 pictures of this hand specimen. Picture 1 is in natural light, Picture 2 & 3 are in both a weak LW 365nm lamp light, held 18" from the specimen, and a strong 3 bulb LW 365nm lamp, held 3 feet away from the specimen (any closer and the camera response is totally wiped out!). The 4th picture is of the back side of the specimen in SW 254nm due to there being more diopside present than on the front side and it being in larger grains. And the calcite marble matrix is essentially unresponsive to any UV lamp in the Castle. If that Calcite fluoresced red, this would be one amazing specimen....and likely it would have been totally out of the Royal price range!

Anyway, enjoy the pictures!

BTW, KT has ordered a mount for his new to me Pixel 6 phone, which is a hand-me-down from Prince John. He wanted the new Pixel 7 Pro, so His Majesty helped him out by buying his Pixel 6. Yes, the King has been drawn into the 21st Century, kicking and screaming, but now has the fun of learning how to use that phone camera and perhaps taking some better pictures of fluorescing minerals than the old HP Photosmart M547 will do. We shall see! And the old flip phone got recycled!

More on that mount when it arrives!
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  #487  
Old 11-12-2022, 10:58 PM
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Default Two more specimens arrived while KT was on vacation in Galveston, TX

One is a willemite with fluorite from Sterling Hill Mine, NJ. It is an Ex-Earl Verbeek specimen. Earl is now in charge of the Sterling Hill Minerals Museum. KT met him years ago while he was still gainfully employed by the US Geological Survey in Denver, CO!

Anyway, the first picture is in natural light and the second picture shows the SW 254nm response of the willemite (green) and the fluorite (blue).

The second mineral is a small but spectacular specimen, in UV light, of marialite, a member of the Scapolite Group. The first picture shows the white on white appearance of the scapolite crystal on white calcite marble from Badakhshan, Afghanistan. The second picture shows the response to SW 254nm light, the marialite being white and the calcite is pink. The last picture shows marialites response to filtered LW 365nm light as bright yellow orange.

KT really likes the color combination of white and pink!

Enjoy the pictures!
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  #488  
Old 11-23-2022, 03:35 PM
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Default Put olde KT in a Christmas mood!

These specimens just arrived at the Royal Mailbox today! And as in the title, when KT looked at them in LW 365nm UV light, they put Him in the mood for Christmas!

The first specimen is a miniature piece of adamite with calcite from Ojuela Mine, Mapimi, Durango State, Mexico. Horizontal dimension (FOV) of the picture is 2.5 inches. The first picture is in natural light and the second is in LW 365nm UV. The response of the calcite (white) is so bright it washes out some of the green response of the adamite.

The second batch of pictures are of 6 ruby crystal sections, weighing in at 0.5 pounds. These are not gem grade of course, but were purchased for their interesting fluorescence and size. The first picture of the rubies (pic 3) is in natural light. The next is in LW 365nm and the last image is in filtered 365nm. Filtering takes out the blue reflections, which gives an image more like the unaided eye sees! His Majesty hopes these put you in a mood for Christmas to be here, too!
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  #489  
Old 11-24-2022, 02:36 PM
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Wow, you keep finding more and more neat specimens KT !!!!

Sorry I haven't posted as much recently, busy with chores and projects, recently built a wall with folding door to wall off kitchen and dining area from living room, still need to do finishing touches with more molding. (helps save heating costs when you can mostly heat areas you are using at the time)

Happy Thanksgiving !!!!

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  #490  
Old 11-24-2022, 09:46 PM
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Default

Originally Posted by GKL View post
Wow, you keep finding more and more neat specimens KT !!!!

Sorry I haven't posted as much recently, busy with chores and projects, recently built a wall with folding door to wall off kitchen and dining area from living room, still need to do finishing touches with more molding. (helps save heating costs when you can mostly heat areas you are using at the time)

Happy Thanksgiving !!!!

Great to hear from you, GKL! His Majesty was beginning to wonder if you were still kickin' around on this earth! Yes, KT has been busy and presently has several more interesting fluorescent specimens on the way from far distant lands! Will get them posted whenever they arrive at the Castle!

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  #491  
Old 11-28-2022, 04:32 PM
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Default Two more fluorescent minerals added to the Royal Collection!

KT is still feeling a bit stuffed from all the Thanksgiving meal and left overs, but thankfully it is nearly all gone now!

So in the Royal Mailbox today were a couple of packages addressed to His Majesty of the Central Kingdom.

The first specimen is a fluorapatite crystal from Badkahshan, Afghanistan. It is a single well formed crystal, a hexagonal prism, pale pink in color and translucent. The first 2 pictures show it looking down the C-axis, so that one can see it is hexagonal in form, and the second picture is looking at it from right angle to the C-axis, which in the image is oriented N-S. The 3rd picture was taken looking down the C-axis, using SW 254nm light, and the zoning is very apparent, the core fluorescing yellow and the exterior fluorescing bluish. The 4th picture is taken in the same orientation in LW 365nm light and again the core fluoresces yellow, and the exterior is pink in response. Trace elements that are incorporated during formation and changed in either concentration or actual chemical constituents is the cause of both of the responses to different wavelengths of UV.

The second example consists of two specimens of ruby in fuchsite, a Cr-bearing muscovite mica. The location was only given as Brazil and KT has been unsuccessful in pinning down any closer location data. The eBay dealer was of no help, as he stated that in a bulk buy of minerals from a Pakistani dealer, he got this material and was told it was from Brazil. KT did spend a bit of time looking around on Mindat.org and did find pictures of fuchsite that look similar from Africa, but no association of ruby with fuchsite in Brazil! Who knows??? Anyway the fifth picture was takien in natural light, and the 6th in LW 365nm. No response in SW as noted.

Enjoy the pictures!
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  #492  
Old 11-29-2022, 09:24 PM
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Default A couple of more goodies!

For your viewing pleasure, KT has a picture of 2 ruby in fuchsite miniatures and 4 nice bright fluorescing t/ns! Eventually His Majesty will mount those T/Ns separately but for now they are just going in the same box. Of the small specimens, KT got a bag of 27 small specimens and high graded these 4 from that batch. The rest will be traded or given away. Anyway, these are poorly located, the only thing the dealer knew is that the dealer he bought them from said they are from Brazil.

Next we go from the ridiculous considering location, to a specimen of Powellite with piedmontite (NF) and quartz (NF), from Ultevis, Jokkmark, Norrbotten County, Sweden. Sounds like the location is pinned down pretty well, doesn't it? But when one looks it up on Mindat.org, there are 7 separate locations along a NE trend that have that general location. And no specific site data on the seven different sites! Oh, well. Certainly better than a label reading...Powellite, Sweden! HA HA

So the first two pictures are of ruby in fuchsite, the first in natural light and the second in LW 365nm.

The second two pictures are of Powellite in quartz and piedmontite matrix, the first in natural light and the second in SW 254nm. Note the color match is pretty good to some of the pictures on Fluomin.org, a yellowish white. This is one of the most notable occurrences of powellite in the Scandinavian region (those seven spots anyway!) HA HA

Enjoy the pictures!
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  #493  
Old 12-01-2022, 05:48 PM
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Default A new arrival at the Castle today!

Another specimen from the famous Sterling Hill Mine, Ogdensburg, New Jersey collecting site.

This one is wollastonite and is a larger specimen. KT decided to place a Rosie on the specimen for the natural light picture, just so the viewer could get a better idea of the specimen picture and grain size of the sample.

The first picture is in natural light. The second picture was taken of the samples response to SW 254nm light and the third of the samples response to LW 365nm light. His Majesty apologizes for the fl. blue house dust showing in the 3rd picture and many tiny blue specks! These are not visible in the two previous images! HA HA

Anyway, the rock consists of wollastonite, diopside, pyrite, and calcite, the last 3 of which are not fluorescent. The rock is pretty much equigranular in texture, meaning the grains of all the minerals are about the same size.

Sorry, not Christmas colors, but these specimens are not necessarily seasonal! Hope you enjoy the images!
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