Rhodochrosite, Quartz, Pyrite, Flourite - Tucson Gem, Mineral and Fossil Showcase

This is Rhodochrosite, Quartz, Pyrite, Flourite. Zacks Pocket, Detroit City Portal, Sweet Home Mine, Alma, CO.

en.wikipedia.org/wiki/Rhodochrosite
Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its pure form (rare), it is typically a rose-red colour,[5] but it can also be shades of pink to pale brown. It streaks white,[6] and its Mohs hardness varies between 3.5 and 4.5. Its specific gravity is between 3.45 and 3.6.[7] The crystal system of rhodochrosite is trigonal, with a lattice structure and cleavage in the carbonate rhombohedral system. The carbonate ions (CO2−3) are arranged in a triangular planar configuration, and the manganese ions (Mn2–) are surrounded by six oxygen ions in an octahedral arrangement. The MnO6 octahedra and CO3 triangles are linked together to form a three-dimensional structure. Crystal twinning is often present. It can be confused with the manganese silicate rhodonite, but is distinctly softer.[8] Rhodochrosite is formed by the oxidation of manganese ore, and is found in South Africa, China, and the Americas.[6] It is one of the national symbols of Argentina.
Rhodochrosite occurs as a hydrothermal vein mineral along with other manganese minerals in low temperature ore deposits as in the silver mines of Romania where it was first found. Banded rhodochrosite is mined in Capillitas, Argentina.
Rhodochrosite is Argentina's "national gemstone".[11][12] Colorado officially named rhodochrosite as its state mineral in 2002.[13]

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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TGMS 2024

Quartz

Pyrite

Flourite

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red

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rose colored « less

Sets appears in: • Tucson Gem & Mineral Show 2024

Groups appears in: • !Catchy Colors • Flickr Addicts more » • Minerals and rocks and fossils • Arizona Wonders (up to 3 in a row) • **crystals** • Arizona Photographers Group • Crystals (Geologic) • Earth Science Teaching Resource • Rocks-Fossils-Minerals • Minerals, Rocks, and Gems • Rocks, gems, pebbles, & stones • Color my world! • Gems, Minerals on matrix, crystals and rough • Most Beautiful Rocks and Minerals • Team Sony « less

Camera: Sony ILCE-7M4, f/8.0, 1/125 sec, 57mm, ISO 800 (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:	57mm
ISO:	800
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Program:	Aperture-priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom Classic 13.1 (Windows)
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