The Jewel of China - "Made for Each Other" - Tucson Gem, Mineral and Fossil Showcase

The label on this display read: The Jewel of China "Made for Each Other", Flourite and Scheelite, Xu Bao Ding, Ping Wu, Sichuan Province, China. Presented by Muhammed Ejaz Collection, Eight Treasure Internation Company.

en.wikipedia.org/wiki/Fluorite
"Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon.
The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 4 as fluorite.[6]
"Pure fluorite is colourless and transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels. The purest grades of fluorite are a source of fluoride for hydrofluoric acid manufacture, which is the intermediate source of most fluorine-containing fine chemicals. Optically clear transparent fluorite lenses have low dispersion, so lenses made from it exhibit less chromatic aberration, making them valuable in microscopes and telescopes. Fluorite optics are also usable in the far-ultraviolet and mid-infrared ranges, where conventional glasses are too opaque for use.

"Many samples of fluorite exhibit fluorescence under ultraviolet light, a property that takes its name from fluorite.[27] "

en.wikipedia.org/wiki/Scheelite
"Scheelite is a calcium tungstate mineral with the chemical formula CaWO4. It is an important ore of tungsten (wolfram). Scheelite is originally named after Swedish chemist Carl Wilhelm Scheele (1742–1786). Well-formed crystals are sought by collectors and are occasionally fashioned into gemstones when suitably free of flaws. Scheelite has been synthesized using the Czochralski process; the material produced may be used to imitate diamond, as a scintillator, or as a solid-state lasing medium. It was also used in radium paint in the same fashion as was zinc sulphide, and Thomas Edison invented a fluoroscope with a calcium tungstate-coated screen, making the images six times brighter than those with barium platinocyanide; the latter chemical allowed Röntgen to discover X-rays in early November 1895.
Scheelite occurs in contact metamorphic skarns; in high-temperature hydrothermal veins and greisen; less commonly in granite pegmatites.[2] Temperature and pressure of formation is between 200 and 500 °C (400 and 900 °F) and from 200 to 1,500 bars (2,900 to 21,800 psi).[7] Typical mineral association includes cassiterite, wolframite, topaz, fluorite, apatite, tourmaline, quartz, grossular–andradite, diopside, vesuvianite and tremolite.

On a personal note. My daughter is interested in gems, minerals, rocks, and stones. We took a daytrip to Tucson. It was our first time to the shows. There are actually something like 3 dozen shows around Tucson. We went to the Tucson Convention Center for about 3 hours and then to the Kino Sports Complex for about 1.5 hours. We had hoped to get to the 22nd St show and the GIGM Show on W. Starr Pass but did not have time. I wish I had bought my tickets in advance, it would have saved about 30-40 minutes of waiting in line at the Convention Center. I'm glad I brought a Circular Polarizer to cut some of the glare of the glass exhibit cases.

www.visittucson.org/tucson-gem-mineral-fossil-showcase/
"Every year the world-renowned Tucson Gem, Mineral & Fossil Showcase is like a time portal, a trip around the world, and a treasure hunt all rolled into one. Every winter, more than 65,000 guests from around the globe descend upon Tucson, AZ, to buy, sell, trade, and bear witness to rare and enchanting gems, minerals, and fossils at more than 40 gem show locations across the city. If you're planning a winter visit to Tucson, you won't want to miss this three-week-long event.
"Whether you’re looking for a $5 shimmering crystal necklace or a show-stopping $200,000 crystallized rock from an exotic location, the Tucson Gem, Mineral, & Fossil Shows have something for everyone.

www.visittucson.org/blog/post/gems-and-minerals/
www.tgms.org/show

TGMS 2024
Tucson Gem Show 2024
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Taken in: United States / Arizona / Arizona Trailer Court (show map)

Taken on: February 10, 2024

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The Jewel of China

Sichuan Province

TGMS

China

Scheelite

Convention Center

Eight Treasure International Company

2024

Xu Bao Ding

Flourite

Ping Wu

Muhummad Ejaz Collection

Tucson Gem Mineral & Fossil Showcase

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Al_hikesaz

Arizona

Tucson Gem and Mineral Show

Tucson Gem Show

Tucson Rock Show

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Tucson Convention Center

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TGMS 2024

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beryl

Pegmatite

Pegmatites « less

Sets appears in: • My Most Interestingness • Tucson Gem & Mineral Show 2024

Groups appears in: • Minerals and rocks and fossils • Arizona Wonders (up to 3 in a row) more » • **crystals** • Arizona Photographers Group • Crystals (Geologic) • Colors! • Earth Science Teaching Resource • Natural Crystals • Rocks-Fossils-Minerals • Minerals, Rocks, and Gems • Rocks, gems, pebbles, & stones • Most Beautiful Rocks and Minerals • Fossils , Minerals And Rocks Group « less

Camera: Sony ILCE-7M4, f/8.0, 1/125 sec, 59mm, ISO 12800 (more info) (hide info)

Camera:	Sony ILCE-7M4
Lens:	FE 24-240mm F3.5-6.3 OSS
Aperture:	f/8.0
Exposure Time:	0.008 sec (1/125)
Focal Length:	59mm
ISO:	12800
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Aperture-priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Saturation:	High
Color Space:	Uncalibrated
Software:	Adobe Photoshop Lightroom Classic 13.1 (Windows)
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