#minerals
How, you might ask, does a perfectly formed #zircon get into a sapphire?
Sapphire melting temp: around 2030 °C. (wikipedia)
Zircon melting temp: high melting point (over 2500°C). (https://www.ga.gov.au/education/classroom-resources/minerals-energy/australian-mineral-facts/zircon)
Tiny zircons can withstand a lot of what makes and destroys other minerals.
Vote: https://www.mineralcup.org/results/round-4-match-1
#TeamZircon #MinCup23 #MinCup2023 #MineralCup23 #MineralCup2023 #MineralCup #MinCup #SciComm #Science #Minerals #Geology #Mineralogy #Teaching #Education
Just leaving this here. Zircon and monazite. You're not going to see calcite in a sapphire, it couldn't take the heat.
#TeamZircon #sapphire #MineralInclusions #euhedral #MinCup23 #MinCup2023 #MineralCup23 #MineralCup2023 #MineralCup #MinCup #SciComm #Science #Minerals #Geology #Mineralogy #Teaching #Education #STEM #Zircon
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
Current regime “simply wrong.”
A court has given British Columbia 18 months to change its mineral staking regime to ensure that consultation with Indigenous nations is done prior to transferring away their rights to minerals to a third party, as the process is now.
A lawyer with one First Nation says the ruling has national implications.
#Indigenous #FirstNations #mining #fpic #BC #consultation #minerals #staking =#courts #law #legal
PayWall. new Scientist.
Ultra-processed food isn't always unhealthy, say UK food officials | New Scientist
https://www.newscientist.com/article/2394414-ultra-processed-food-isnt-always-unhealthy-say-uk-food-officials/
#UltraProcessedFoods
#UKFoodStandardsAgency
#ChrisVanTulleken
#VanTulleken
#Brasil
#BritishNutritionFoundation
#ArtificialSweetners
#LowFat
#ReducedSugar
#Fortified
#Vitamins
#Minerals
#SACN
#SaturatedFat
#Sugar
#Salt
Absolutely Gorgeous #Vivianite from Dalence Province, Oruro Department, Bolivia.
Photo Copyright ©️ Anton Watzl Minerals
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
Septarian concretions are concretions containing angular cavities or cracks, called "septaria". The septaria are the calcite filled cracks at the center of the rock, indicating where the centers of the concretions have shrunk
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
Hexagonal #Vanadinite crystals on goethite matrix
Mibladen, #Morocco
Photo Copyright © @Abdou.Alaoui.14
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
#MinCup2023 Today, it has to be #Corundum. Here's some more of the blue sapphire variety from Mull - these small (<1mm) crystals were isolated by dissolving a block of sapphire-bearing rock in hydrofluoric acid😱 . But don't they look fine! 🥰 🤩 Hunterian Museum specimen. #Geology #Mull #Minerals
I'm reading Iron from the app Natural Remedies https://www.naturallifeapp.com/vitamins/en/iron
#MiningTechnology 📆 September 13, 2023 The #economic potential of extracting raw #minerals from #space for use on Earth or for #InSpaceManufacturing is infinite. The #asteroid ☄️ database Asterank has estimated the resource values for asteroids tracked by #NASA. It claims that the ten closest and most cost-effective #asteroids to mine from #Earth contain around $1.5trn 💰 of natural #resources in today’s economy, which is equivalent to the current annual value of the entire global 🌍 #mining ⚒️ industry.
The current level of investment 💵 into #SpaceExploration and the potential exhaustion of Earth’s resources mean that #AsteroidMining is more of an inevitability than a possibility. https://www.mining-technology.com/comment/asteroid-mining-resource-rich-developing-economies/
#MinCup23 rhodochrosite vs arsenuranospathite Today, I'm going for rhodochrosite, as AFAIK, the "a" mineral doesn't occur in Scotland. #Parochial 😁 .
Rhodochrosite is v rare in Scotland too: this is probably the very best Scottish material: pinkish massive areas in banded Fe-Mn oxide rock, from the little-known Dalroy deposit, near Culloden. Here photographed by me on a blinding blue plastic dustbin 😂 #Geology #Rhodochrosite #Minerals
Today in #MinCup23 I am hoping rhodochrosite will win.
I posted about the Roses in the Mountains legends here in the last round:
https://ohai.social/@TarkabarkaHolgy/111073175038609971
Vote for underground rose gardens full of rhodochrosite flowers, and legendary Dwarf kingdoms 😄
Amazing Robust, razor-sharp crystals of Erythrite with metallic magenta coloration and glassy luster on matrix from the Aghbar Mine, Bou Azer District, Ouarzazate Province, #Morocco; 7 cm.
Photo copyright © @nunzio.j
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
Fluorapatite on Elbaite - Alto da Cabeca Mine, #Brazil - 5.5cm —
.
A jewel-blue cluster of sharp, lustrous Apatite crystals crowns a grass-green tourmaline in this iconic specimen from the Will Johnson Collection @naturalcreationsllc — A slightly different photo serves as Figure 5 in Flawless Beauty avail from @themineralogicalrecord —
By #MineralMasterpiece
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
Veszelyite, (Cu,Zn)2Zn(PO4)(OH)3·2H2O
Dongchuan District, Kunming, Yunnan, China
FOV = 2.9 mm
#9389
NFS
#mineralogy #mineral #minerals #Geology #crystals #earthsciences
Cornwallite, Cu5(AsO4)2(OH)4
Agardite-(Y), YCu2+6(AsO4)3(OH)6·3H2O
Green sphere of cornwallite and adjacent mass of cornwallite with agardite-(Y) scattered over the surface.
Falgayrolles, Monteils, Villefranche-de-Rouergue, Aveyron, Occitanie, France.
FOV = 2.6 mm
#9388
NFS
#mineral #minerals #mineralogy #Geology #earthsciences #crystals
Tyrolite, Ca2Cu9(AsO4)4(CO3)(OH)8·11H2O
Azurite, Cu3(CO3)2(OH)2
Blue green tyrolite with azurite.
La Amorosa mine, San Rafael claim, Villahermosa del Rio, Castellón, Valencian Community, Spain
FOV = 3.5 mm
#9391
NFS
#minerals #mineralogy #mineral #crystals #Geology #earthsciences
Kasolite, Pb(UO2)(SiO4)·H2O
Clusters of yellow kasolite crystals.
San Rafael Mine, Cardeña, Córdoba, Andalusia, Spain
FOV = 1.8 mm
#9392
NFS
#minerals #mineralogy #crystals #Geology #earthsciences
Hubeite, Ca2Mn2+Fe3+Si4O12(OH)·2H2O
Manganbabingtonite, Ca2Mn2+Fe3+Si5O14(OH)
Fengjiashan Mine, Daye Co., Huangshi, Hubei, China
Reddish brown hubeite with dark manganbabingtonite on quartz.
FOV = 0.9 mm
#9393
NFS
#minerals #mineralogy #mineral #Geology #crystals #earthsciences
Fluoro-edenite, NaCa2Mg5(Si7Al)O22F2
Multiple fluoro-edenite crystals associated with tridymite and a feldspar group mineral.
Harter Mountain, Linn County, Oregon, USA
FOV = 3.6 mm
#9397
NFS
#minerals #mineral #mineralogy #Geology #earthsciences
If you have a smartphone, you likely have a #corundum (#sapphire) window covering the camera and making it nearly scratch-proof.
Corundum has been produced commercially since the late 1850's (as an abrasive). Only in the last decade or so have large, optically transparent windows been commercially affordable.
The Department of #Geology at Wichita State Univ, Kansas, USA, is searching for a mineralogist/petrologist with research expertise related to critical minerals. This position is tenure-track and review of applications begins Nov 30, 2023. #minerals
https://jobs.wichita.edu/postings/30535
They are also looking for a tenure track #geoscience communication individual.
https://jobs.wichita.edu/postings/30536
"In every scenario, the demand for #battery #minerals represents a tiny fraction of the amounts of #FossilFuels now needed to power the world."
"Lead the Charge, an advocacy network tracking the supply chains of the world’s leading automakers, says many are making progress on their efforts to eliminate #emissions, environmental harms and #HumanRights violations. “But as an industry,” it says, “there is a long way to go.”"
#Cuprite has been a major ore of copper and is still mined in many places around the world. Of all the #copper ores except for native copper,
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
An unusual, very rare large miniature/small cabinet rhodochrosite from N’Chwaning, #SouthAfrica. (8cm)
Photo Copyright ©️ @Green Mountain Minerals
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
#Amber is found in a variety of colors, including yellow, orange, brown, red, and black. It is also found in a variety of shapes, including tears, beads, and rods.
https://www.geologyin.com/2016/05/types-of-amber.html
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
@yoguiignacio
The clean-energy race is good, actually. And clean energy is indeed clean.
https://www.washingtonpost.com/climate-environment/2023/09/19/electric-cars-better-environment-fossil-fuels
#climate #minerals #environment #sustainability "#degrowth"
Galena is the natural mineral form of lead sulfide, and is the most important ore source of lead and an important source of silver. Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms.
Looks like a Borg Cube!
#minerals
#StarTrek #starTrekTNG
Kyanite wins my vote. I have a couple of pieces in the mineral collection close to my heart, including this one.
Fantastic #Tourmaline & #Lepidolite From Keke Pocket, Pederneira Mine, #Brazil - 13.7cm
photographed for Natural Creations LLC
Photo copyright © Mineral Masterpiece
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
Amazing #Cuprite & Chrysocolla - Dikuluwé Mine, DR #Congo - 5.5cm -
photographed for @finegemsandminerals
Photo copyright © Mineral Masterpiece
By #GeologyWonders
#Geology #GeologyPage #Nature #minerals #crystals #gems #Nature #NatureLovers #NaturePhotography #Photographer
Today's #MinCup23 match is calcite vs opal. This'll be a thread.
Calcite reminds me of a story from Costa Rica. A chief called Nandayure owned a magic wand that could make disappear anything that contained calcium. One day he saw his people dancing, wearing lots of white body paint, and grew so angry at the decorations he aimed the wand at them. You know what else has calcium? Bones. Oops.
(He managed to reverse the spell by destroying the wand)
#folklore #folktales #minerals #gemstones #thread
#Mercury is nasty. Don't vote for it in the #MinCup23. Give it up for #Sepiolite, which may be a little weird, but it isn't trying to ruin your nervous system or screw up your geochronology...
In uranium-lead geochronology, lead has four isotopes (atoms with the same number of protons, but different numbers of neutrons and hence slightly different atomic masses). These are ²⁰⁴Pb, ²⁰⁶Pb, ²⁰⁷Pb and ²⁰⁸Pb. All but ²⁰⁴Pb are produced by the radioactive decay of uranium and thorium and hence we use those for dating #minerals. ²⁰⁴Pb is primordial meaning whatever ²⁰⁴Pb there is has been hanging around since before the Solar System formed. It tells us how much 'common' lead was already in the mineral when it formed and needs to be corrected for in our age dating calculations.
Wretched mercury also has several isotopes, one of them is ²⁰⁴Hg and is very, *very* close in atomic mass to ²⁰⁴Pb. So close that in most mass spectrometers ²⁰⁴Hg will look identical to ²⁰⁴Pb and pretty much screw up your common lead calculation. And because mercury is an insidiously foul pox of an element, it can get into everything and stays there. Some laboratories, because of an earlier dalliance with mercury diffusion vacuum pumps (another horror story), have had to be decommissioned because even decades later they could still see traces of mercury in every measurement.
So please don't vote for mercury. It doesn't deserve your attention. Go #TeamSepiolite
Are the oceans leaky bathtubs? #Lawsonite is partially responsible! 20% of the ocean's water may lave drained into the deep mantle over the last billion years.*
Don't blame Canada! The Cascade subduction zone is too warm. #MinCup23 #Geology #Minerals #WaterCycle
* Korenaga, Planavsky, & Evans (2017) Phil. Trans. A.
Today's #MinCup23 match is corundum vs lawsonite.
*Cracks knuckles*
I'm voting corundum, because folklore (and because as a kid I had a book on gemstones, and padparadscha seemed so magical).
I'm going to make this a thread, because rubies and sapphires figure into a whole bunch of tales and legends.
🧵
#folklore #folktales #mythology #gems #minerals #thread #corundum
limpet teeth, a composite containing #goethite, are the strongest known biological material in tension -twice as strong as spider silk.
#MinCup23 #Limpet #Minerals #Materials
https://daily.jstor.org/worlds-strongest-material-limpet-teeth/
Rumney, R.M.H., Robson, S.C., Kao, A.P. et al. Biomimetic generation of the strongest known biomaterial found in limpet tooth. Nat Commun 13, 3753 (2022). https://doi.org/10.1038/s41467-022-31139-0
Open Access
https://www.nature.com/articles/s41467-022-31139-0