Reuters: Belgian museum, US mining company at odds over colonial-era Congo archive. “A U.S. mining company backed by billionaires Jeff Bezos and Bill Gates is in a tangle with Belgium’s AfricaMuseum over who should digitise antique maps of what is now the Democratic Republic of Congo in the museum’s archive.”
https://rbfirehose.com/2026/04/04/reuters-belgian-museum-us-mining-company-at-odds-over-colonial-era-congo-archive/#minerology — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #minerology, aggregated by home.social.
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Johann Gottlob von Kurr’s The Mineral Kingdom, 1859
Minerals of the world in 24 hand-coloured lithographed plates
By Sheldon D. Via: BioDiversityLibrary
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#Stonehenge central #rock probably came from #Scotland
Based on nice #geochemistry and #minerology work on the central alter stone.
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25% off #sale on wall #Art like #posters and #Canvas #Prints:
A pile of small #Carnelian specimens sitting on a light box.
Carnelian is another type of #SiliconDioxide arranged in a different #crystal structure.
It is technically a form of #chalcedony, colored with #orange, #red, #amber and #yellow hues caused by the inclusion of iron oxide impurities.Get a print of this image or other items at https://heronfox.pixels.com/featured/small-carnelian-specimens-4-heron-and-fox.html
#MacroPhotography, #Minerology, #StillLife, #Minerals, #Photograph
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#Crystals often grow on or in #rocks under special circumstances. The outside edges of these rocks may not seem like much, but the crystal on the other side can be extremely #beautiful, like the amethyst on the other side of this rock.
Get a print of this image or other items at heronfox.pixels.com/featured/amethyst-specimen-2-heron-and-fox.html
#Macro, #MacroPhotography, #Mineral, #Geology, #Minerology, #Photograph
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A pile of small #Carnelian specimens sitting on a light box.
Carnelian is another type of #SiliconDioxide arranged in a different #crystal structure.
It is technically a form of #chalcedony, colored with orange, red, amber and yellow hues caused by the inclusion of iron oxide impurities.Get a print of this image or other items at https://heronfox.pixels.com/featured/small-carnelian-specimens-4-heron-and-fox.html
#MacroPhotography, #Minerology, #StillLife, #Minerals, #Photograph
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A contender in this round of #MinCup23, #Calcite comes in several forms, including #Optical Calcite, sometimes called #Iceland Spar or #Iceland Crystal, the strong #birefringence properties are on display in this #photograph as the #crystal creates a small #rainbow-like formation on the right side. This property has made it a candidate for the somewhat mysterious #SunStone from #Viking legend, able to find the Sun despite overcast conditions by looking for the double #refraction.
This form of calcite often cleaves into parallelepiped (parallelogram extended into 3D) sections, such as the one pictured.Vote in #MinCup23: https://www.mineralcup.org/2023/campaigns/campaigns/campaigns/round-2-match-5
Get a print with this image, or other merchandise at https://heronfox.pixels.com/featured/calcite-specimen-4-heron-and-fox.html
#OpticalCalcite, #IcelandSpar, #Minerology, #VoteCalcite, #Photograph, #MacroPhotography
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#Calcite, a #crystal form of #CalciumCarbonate (#CaCO3), that has a fascinating way of distorting and refracting the light that passes through it, such as the color patterns in this “nailhead spar” piece of calcite.
Get a print or merchandise here: https://heronfox.pixels.com/featured/calcite-specimen-2-heron-and-fox.html
#RocksOfMastodon, #Minerology, #Geology, #OpticCalcite, #NailHeadSpar, #Macro #Photograph, #MacroPhotography -
#Anthracite is the hardest and cleanest-burning type of #coal. It’s also the most expensive, meaning it was usually reserved for home #stoves and #heating; not power generation. Because of its high heat content, it was formerly used in blast furnaces, but has been replaced by metallurgical coke which has greater room for oxygen penetration, which anthracite is too dense for. It is also hard to ignite.
This #mace #photograph of the surface of the #mineral show it begins to cleave along flat plains, making it clear that anthracite is an intermediate stage between bituminous coal and graphite.
There are also yellow, #sulfurous inclusions on the surface.
#MacroPhotography, #AnthraciteCoal, #Rock, #Minerology, #MinerologicPhotography, #Photography, #Photograph, #Photo
https://heronfox.pixels.com/featured/anthracite-specimen-1-heron-and-fox.html -
Climbing with #CragLev the carbon capturing grip enhancer at #ShelfRoad
#climbing #climbingchalk #carboncapture #carbonnegative #ClimateChange #chemistry #minerology
https://youtu.be/9g5G_FuIaf0