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1000 results for “silicatefondue”
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A description of #Haüyne fluorescence at: https://gemologyproject.com/wiki/index.php?title=Hauyne
These samples are found in a quarry near the Laacher See (Eifel Mts, Rhineland-Palatinate, Germany)
This crater was formed only ~13,000 years ago in an eruption similar in size to the 1991 Pinitubo eruption -in central Europe!
#MinCup25 #hauyne #LaacherSee #EifelMountains #Germany #Volcano
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A description of #Haüyne fluorescence at: https://gemologyproject.com/wiki/index.php?title=Hauyne
These samples are found in a quarry near the Laacher See (Eifel Mts, Rhineland-Palatinate, Germany)
This crater was formed only ~13,000 years ago in an eruption similar in size to the 1991 Pinitubo eruption -in central Europe!
#MinCup25 #hauyne #LaacherSee #EifelMountains #Germany #Volcano
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The solid-state diffusion of iron and nickel into #taenite and #kamacite domains forms the Widmanstätten pattern in iron meteorites. The growth of these domains has been calibrated with temperature.
The meteorite pictured (Tambo Quemado, Peru, type IIIB) suggests a cooling rate of 1.2 °C per million years; modelling suggests this occurred in a planetesimal ~ 200 km in radius (which was later disrupted and fragments of the core exposed to space) (Goldstein & Short, 1967).
#MinCup25 #Meteorite -
Repost from:
Mika McKinnon @mikamckinnon.bsky.socialPrefer bio to geo? Thbbbpft, but also:
1. #ikaite towers are a globally-unique ecosystem with cool critters!
https://arctichub.gl/unique-mineral-columns-in-ikkafjord-are-thriving-again/ (includes video). Bonus: They’re currently doing ok despite climate change & warming waters!2. You can find it as white spots on frozen shrimp shells.
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Repost from:
Dee Gardner @glacierpique.bsky.social“They were able to identify the presence of two rather unique crystals on the surface of washed rind cheeses: struvite and ikaite.”
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Repost from:
Dee Gardner @glacierpique.bsky.social“They were able to identify the presence of two rather unique crystals on the surface of washed rind cheeses: struvite and ikaite.”
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Repost from:
Dee Gardner @glacierpique.bsky.social“They were able to identify the presence of two rather unique crystals on the surface of washed rind cheeses: struvite and ikaite.”
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Repost from:
Dee Gardner @glacierpique.bsky.social“They were able to identify the presence of two rather unique crystals on the surface of washed rind cheeses: struvite and ikaite.”
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Repost from:
Dee Gardner @glacierpique.bsky.social“They were able to identify the presence of two rather unique crystals on the surface of washed rind cheeses: struvite and ikaite.”
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The organizers of #MinCup25 are very clever. Today and yesterday feature three aluminosilicates that are compositionally co-linear!
Diagram from Barton (1982), published in the American Mineralogist.
#kyanite #topaz #zunyite #aluminosilicate #MineralSocAmerica #ArgillicAlteration
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The organizers of #MinCup25 are very clever. Today and yesterday feature three aluminosilicates that are compositionally co-linear!
Diagram from Barton (1982), published in the American Mineralogist.
#kyanite #topaz #zunyite #aluminosilicate #MineralSocAmerica #ArgillicAlteration
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The organizers of #MinCup25 are very clever. Today and yesterday feature three aluminosilicates that are compositionally co-linear!
Diagram from Barton (1982), published in the American Mineralogist.
#kyanite #topaz #zunyite #aluminosilicate #MineralSocAmerica #ArgillicAlteration
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The organizers of #MinCup25 are very clever. Today and yesterday feature three aluminosilicates that are compositionally co-linear!
Diagram from Barton (1982), published in the American Mineralogist.
#kyanite #topaz #zunyite #aluminosilicate #MineralSocAmerica #ArgillicAlteration
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The organizers of #MinCup25 are very clever. Today and yesterday feature three aluminosilicates that are compositionally co-linear!
Diagram from Barton (1982), published in the American Mineralogist.
#kyanite #topaz #zunyite #aluminosilicate #MineralSocAmerica #ArgillicAlteration
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Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of #Molybdenite. But in the Archean the oceans were reducing, and molybdenum was scarce.
Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.
Molybdenite enables the Earth's biosphere!
#MinCup25 #NitrogenFixation #Nitrogenase #Archean #GreatOxidationEvent #OreCup #OreCup25
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Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of #Molybdenite. But in the Archean the oceans were reducing, and molybdenum was scarce.
Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.
Molybdenite enables the Earth's biosphere!
#MinCup25 #NitrogenFixation #Nitrogenase #Archean #GreatOxidationEvent #OreCup #OreCup25
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Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of #Molybdenite. But in the Archean the oceans were reducing, and molybdenum was scarce.
Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.
Molybdenite enables the Earth's biosphere!
#MinCup25 #NitrogenFixation #Nitrogenase #Archean #GreatOxidationEvent #OreCup #OreCup25
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Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of #Molybdenite. But in the Archean the oceans were reducing, and molybdenum was scarce.
Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.
Molybdenite enables the Earth's biosphere!
#MinCup25 #NitrogenFixation #Nitrogenase #Archean #GreatOxidationEvent #OreCup #OreCup25
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Today, molybdenum is one of the most common trace elements in the ocean due to oxidative weathering of #Molybdenite. But in the Archean the oceans were reducing, and molybdenum was scarce.
Other nitrogenases evolved to use other transition elements, but Mo-nitrogenase was first, and best.
Molybdenite enables the Earth's biosphere!
#MinCup25 #NitrogenFixation #Nitrogenase #Archean #GreatOxidationEvent #OreCup #OreCup25
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#Molybdenite is the primary host for the element molybdenum in the Earth's crust.
Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.
The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.
#MInCup25 #NitrogenFixation #Nitrogenase #Archean #OreCup #Orecup25 -
#Molybdenite is the primary host for the element molybdenum in the Earth's crust.
Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.
The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.
#MInCup25 #NitrogenFixation #Nitrogenase #Archean #OreCup #Orecup25 -
#Molybdenite is the primary host for the element molybdenum in the Earth's crust.
Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.
The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.
#MInCup25 #NitrogenFixation #Nitrogenase #Archean #OreCup #Orecup25 -
#Molybdenite is the primary host for the element molybdenum in the Earth's crust.
Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.
The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.
#MInCup25 #NitrogenFixation #Nitrogenase #Archean #OreCup #Orecup25 -
#Molybdenite is the primary host for the element molybdenum in the Earth's crust.
Molybdenum is part of the most effective biological molecule for nitrogen fixation (Mo-nitrogenase), which converts atmospheric N2 to a bio-available form.
The grey sphere is Mo; this complex molecule likely evolved more than 3.2 billion years ago.
#MInCup25 #NitrogenFixation #Nitrogenase #Archean #OreCup #Orecup25 -
Reposted from bsky:
A hand-ground section of tephrite from Kaiserstuhl Volcanic Complex showing #Titanite -
AlexStrekeisen.it (run by Alessandro Da Mommio) has some beautiful thin section images of titanite:
https://www.alexstrekeisen.it/english/pluto/titanite.php
#MinCup25 #ThinSectionThursday #Titanite #Sphene #Granite #Mineralogy
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AlexStrekeisen.it (run by Alessandro Da Mommio) has some beautiful thin section images of titanite:
https://www.alexstrekeisen.it/english/pluto/titanite.php
#MinCup25 #ThinSectionThursday #Titanite #Sphene #Granite #Mineralogy