#Nontronite
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salvaterra.bsky.social
taenite X nontronite on the #MinCup25 sketchbook.

nontronite will be fun to paint. taenite is impressive but very bland visually.

#minerals #sketchbook #b&wart #sciart
sketchbook page photo with the black and white pen drawings of taenite and nontronite chunks. one is a metal from space, the other is a chunk of clay. a pen rests upon the page.
September 15, 2025 at 1:44 PM
mineralcup.bsky.social
#MinCup25 Round 1 Match 15 - It's a mineral found mostly in the farthest reaches of space vs one so common an exhaustive list of localities is nigh impossible as alloy #taenite faces off against clay #nontronite.

Vote: www.mineralcup.org/2025/vote/r1...
Results: www.mineralcup.org/2025/results...
Vote in Round 1 Match 15 — Mineral Cup
Click here to vote in Taenite vs Nontronite Photo credits: Harold Moritz and Joan Garcia Santiago
www.mineralcup.org
September 15, 2025 at 12:04 AM
geologyjohnson.bsky.social
By the way, #MinCup25 gang, this fossil was preserved in #nontronite!
geologyjohnson.bsky.social Geology Johnson @geologyjohnson.bsky.social · Sep 15
Higher res image of the microfossil I showed the other day. The green lines show where I digitally reattached the part from the left hand side. This fossil is about 1.4 billion years old. Can you spot the pattern to the wrinkles? #geology #palaeontology #Fossil
Grey scale microscope photo of a microfossil that looks like a pie crust. A white scale bar shows that the fossil is 0.07 mm across.
September 15, 2025 at 8:30 PM
geolizzy.bsky.social
Clay minerals don’t get enough love, so I’m voting #nontronite today! Clays aren’t boring, you just don’t know enough about them #MinCup25
mineralcup.bsky.social Mineral Cup & Ore Cup @mineralcup.bsky.social · Sep 15
#MinCup25 Round 1 Match 15 - It's a mineral found mostly in the farthest reaches of space vs one so common an exhaustive list of localities is nigh impossible as alloy #taenite faces off against clay #nontronite.

Vote: www.mineralcup.org/2025/vote/r1...
Results: www.mineralcup.org/2025/results...
Vote in Round 1 Match 15 — Mineral Cup
Click here to vote in Taenite vs Nontronite Photo credits: Harold Moritz and Joan Garcia Santiago
www.mineralcup.org
September 15, 2025 at 8:38 PM
glacierpique.bsky.social
#Nontronite is one of the most common clay minerals found on Mars, another compelling clue to Mars’ watery past. Scientists confirmed that these clay minerals met the nutrient needs for microbial life.

ntrs.nasa.gov/api/citation...

#MinCup25
Pea green Nontronite and black hollandite fill vacuoles of terrestrial, brick-red volcanic rock. Image from mindat’s website and copyright Fabre Materials.
September 15, 2025 at 3:35 AM
maiainmi.bsky.social
#Taenite is a space rock.

#Nontronite is common clay.

...Clay isn't common. It's fascinating, and fun. I'm voting for nontronite.

#MinCup25
mineralcup.bsky.social Mineral Cup & Ore Cup @mineralcup.bsky.social · Sep 15
#MinCup25 Round 1 Match 15 - It's a mineral found mostly in the farthest reaches of space vs one so common an exhaustive list of localities is nigh impossible as alloy #taenite faces off against clay #nontronite.

Vote: www.mineralcup.org/2025/vote/r1...
Results: www.mineralcup.org/2025/results...
Vote in Round 1 Match 15 — Mineral Cup
Click here to vote in Taenite vs Nontronite Photo credits: Harold Moritz and Joan Garcia Santiago
www.mineralcup.org
September 15, 2025 at 10:52 AM
salvaterra.bsky.social
This handful of exquisite and rare minerals is ready to enter your worldbuilding as forging materials, alchemical ingredients or magic components.

💎 www.patreon.com/posts/stock-...

The post can be purchased without subscription.

#ttrpg #stockart #bsnm
illustration of four minerals: taenite, nontronite, okenite and calcite. most of them white and gray, calcite is like a crystal, taenite a metal cut in half with an interesting crystal pattern inside, oketine is like a fluffy ball, actually some tiny sharp needle-like crystal ball and nontronite is like a slightly yellow ore embedde in a rock.
May 13, 2026 at 1:14 PM
hellyeahcorks.bsky.social
FUCK YEAH NONTRONITE

THE BEST CLAY MINERAL
mineralcup.bsky.social Mineral Cup & Ore Cup @mineralcup.bsky.social · Aug 29
Hark! Is that a mineral list I spy? www.mineralcup.org/2025/mineral...

Lots of new contenders this year as we increase to 75% turnover for #MinCup25.
Minerals List — Mineral Cup
www.mineralcup.org
August 29, 2025 at 5:54 PM
hellyeahcorks.bsky.social
GO NONTRONITE GOOOOOO
September 15, 2025 at 8:40 PM
brewergnome.bsky.social
Clay forever! Nontronite woooo!
September 15, 2025 at 5:21 AM
geologyjohnson.bsky.social
#MinCup25 phylosilicate friends unite! #Nontronite is another clay involved with the preservation of my billion year old fossils.
mineralcup.bsky.social Mineral Cup & Ore Cup @mineralcup.bsky.social · Sep 15
#MinCup25 Round 1 Match 15 - It's a mineral found mostly in the farthest reaches of space vs one so common an exhaustive list of localities is nigh impossible as alloy #taenite faces off against clay #nontronite.

Vote: www.mineralcup.org/2025/vote/r1...
Results: www.mineralcup.org/2025/results...
Vote in Round 1 Match 15 — Mineral Cup
Click here to vote in Taenite vs Nontronite Photo credits: Harold Moritz and Joan Garcia Santiago
www.mineralcup.org
September 15, 2025 at 6:20 AM
glacierpique.bsky.social
Declay exists as an extant form of life
#Nontronite
#MinCup25
September 15, 2025 at 3:09 AM
rob-rainbolt.bsky.social
No offense nontronite but you're sort of lumpy and dull and can't compete with a cool rock from outer space.
September 15, 2025 at 1:03 AM
corgiseveryhour.bsky.social
#Nontronite is a greenish to brownish-green clay mineral and a member of the smectite group, characterized by a silicate structure with iron replacing aluminum. It forms under specific environmental conditions. Nontronite has a dull, earthy luster, perfect basal cleavage, and a hardness of 1.5–2.
The green colored nontonite clay in an arrowhead shape cracks are evident as this material has a hardness of 2.5 and perfect cleavage. This is a half football of nontronite that is electic lime green across the surface, which seems to have no pattern of formation. A dull green sample of nontronite, with dark green speckled surface. No real discernible shape as this is a close up photograph, but it does show the varying coloration from the mineral inclusions. Light green and puffy a human hand adjust one of the 4 pieces of nontronite on the right. These pieces range from roughly oblong on the top with a triangle in the center and a small piece on the bottom left.
September 15, 2025 at 3:32 PM
hellyeahcorks.bsky.social
Especially EXPANDING LAYER clays!!!

Nontronite is fuckin rad AF.
September 15, 2025 at 8:42 PM
minouette.bsky.social
While iron-nickel alloy taenite gets physics points for its meteorite origin, iron-rich clay mineral nontronite is formed in deep sea hydrothermal vents, used in pulp & paper and cosmetics and since weathering would be needed to produce it, is part of the evidence for water on Mars.

#MinCup25
A pale green Nontronite sample against a white background from Hoher Hagen, Dransfeld, Göttingen District, Lower Saxony, Germany. Via https://www.mindat.org/min-2924.html Metallic meteorite (Muonionalusta, Sweden) with Widmanstätten figures © R. Tanaka Via https://www.le-comptoir-geologique.com/taenite-encyclopedia.html
September 15, 2025 at 12:56 PM
salvaterra.bsky.social
The latest four batches of minerals.

#minerals #ttrpg #sciart
illustration of six pieces of minerals in full colour: stibnite, hematite, baryte, haüyne, pectolite and perovskite. they have varied appearances going from crystals to nuggets of metal. illustrations of five minerals next to each other: chrysotile, jeremejevite, silver, sanidine and the amazing kosmochlor. they go from grey silver to deep blue and green colourful illustrations of 5 minerals in hues of blue, green and beige. They are azurite, titanite, thortveitit, topaz and kyanite, the mineral cup winner of 2025. illustration of four minerals: taenite, nontronite, okenite and calcite. most of them white and gray, calcite is like a crystal, taenite a metal cut in half with an interesting crystal pattern inside, oketine is like a fluffy ball, actually some tiny sharp needle-like crystal ball and nontronite is like a slightly yellow ore embedde in a rock.
May 15, 2026 at 2:35 PM
joxter.bsky.social
NO HESITATION CLAY VOTE.

Let's go #nontronite!!!!!!!!
mineralcup.bsky.social Mineral Cup & Ore Cup @mineralcup.bsky.social · Sep 15
#MinCup25 Round 1 Match 15 - It's a mineral found mostly in the farthest reaches of space vs one so common an exhaustive list of localities is nigh impossible as alloy #taenite faces off against clay #nontronite.

Vote: www.mineralcup.org/2025/vote/r1...
Results: www.mineralcup.org/2025/results...
Vote in Round 1 Match 15 — Mineral Cup
Click here to vote in Taenite vs Nontronite Photo credits: Harold Moritz and Joan Garcia Santiago
www.mineralcup.org
September 15, 2025 at 12:53 AM
salvaterra.bsky.social
First round losers in the #MinCup25

(is this rude?)

#sciart #minerals
a poster with illustrations of 16 minerals eliminated in the first round of the 2025 mineral cup: chrysotile, okenite, jeremejevite, calcite, silver, leucite, sanidine, pollucite, azurite, wavellite, thortveitite, zunyite, topaz, ikaite, nontronite, and paddlewheelite. They have a large range of colours and shapes going from blue and green to yellow and red.
September 24, 2025 at 6:41 PM
golddiggertraders.bsky.social
🐉This Thursday we are going into the dragon’s lair! The headliner will absolutely be this Nontronite with Quartz & Mica! While Nontronite its self isn’t exceptionally “rare” per se, however, Nontronite of this size, included with quartz & mica, absolutely is rare! ✨💎✨ #crystals #dragon #crystalshop
March 19, 2025 at 3:34 AM
salvaterra.bsky.social
💎 Never forget the ones who have fallen too soon 🥲

#MinCup25 #minerals #sciart
a poster with illustrations of 16 minerals eliminated in the first round of the 2025 mineral cup: chrysotile, okenite, jeremejevite, calcite, silver, leucite, sanidine, pollucite, azurite, wavellite, thortveitite, zunyite, topaz, ikaite, nontronite, and paddlewheelite. They have a large range of colours and shapes going from blue and green to yellow and red.
September 26, 2025 at 1:18 PM
drewbrayshaw.bsky.social
Anyways I'm not going to vote for nontronite even though clays have gloriously complex structures.
September 15, 2025 at 3:47 AM
obialik.bsky.social
Ready? I'm not, but it's almost here, #MinCup25! ⚒️
(naturally, #TeamCalcite)
Blank Bracket for MinCup25 listing Calcite Dioptase Kyanite Perovskite Stibnite Titanite Topaz Wavellite Baryte Molybdenite Azurite Carpathite Chrysotile Cuprosklodowskite Haüyne Hematite Ikaite Jeremejevite Kosmochlor Leucite Mannardite Nontronite Okenite Paddlewheelite Pectolite Pollucite Sanidine Silver Taenite Thortveitite Tugtupite Zunyit
August 29, 2025 at 5:17 PM
jraasch.bsky.social
Taenite vs. Nontronite #MinCup25 ?

You’re going to force me to choose between a space mineral and possibly biogenic mineral ?

My default is always go for the space mineral or biogenic mineral. 😬
August 31, 2025 at 3:24 PM
gsa-mgpv-division.bsky.social
#MinCup25 Round 1, Match 15: 💫 #Taenite vs 🌍 #Nontronite. An iron-nickel meteorite alloy meets an iron-rich clay mineral.

#minerals #mineralogy
September 15, 2025 at 2:43 PM