#mnco3

[emeraldcityminerals]

Pink rhodochrosite (MnCO3) surrounded by milky quartz (SiO2). From American Tunnel Mine aka Sunnyside, Howardsville, Silverton, Colorado. Size: 2.5 cm x 1 cm x 1 cm

[jomindraws]

This ones a BIG boy.... next mineral group map: CARBONATES

CALCITE GROUP Calcite - CaCO3 - (Army Green) Magnesite - MgCO3 - (Amythest Purple) Siderite(Magnesite Rich) - FeCO3 - (Dark Teal) Rhodochrosite - MnCO3 - (Pink) ARAGONITE GROUP Aragonite - CaCO3 - (Pale Gold) Witherite - BaCO3 - (Dark Ochre Yellow) Strontianite - SrCO3 - (Safety Green) OTHER CARBONATES Dolomite - CaMg(CO3)2 - (Steel Grey) Siderite(Smithsonite Rich) - FeCO3 - (Copper-Orange) Malachite - Cu2CO3(OH)2 - (Malachite Green) Azurite - Cu3(CO3)2(OH)2 - (Ultramarine)

And YES, there are two Siderites in here... I just figured that since usually its comparative sister mineral rarely occurs WITHOUT Siderite, that two different mineral types (Magnesite-rich and Smithsonite Rich) were necessary

ANyways fsdjk;hjvihob;jj'os more fun fun fun fun fun minerals coming up @!1!!!!!

[basicgeology]

Aragonite [CaCO3], Dolomite [CaMg(CO3)2] & other carbonatic minerals

This post is a part two to my "Calcite (CaCO3)" post, you don't have to read that one to understand this one, but it would make more sense to read them in order.

Aragonite [CaCO3]

Aragonite is another one of the most common carbonatic minerals on the Earth's surface, right alongside calcite. Calcite and aragonite share the same chemical formula (CaCO3) because they are both polymorphs of the calcium carbonate compound.

Polymorph: The same chemical compound can present itself naturally under more than one form, depending on temperature and pressure. Multiple forms that share the same chemical formula but are stable at different values of temperature and pressure, are defined as polymorphs. In this case, the formula is CaCO3, which is also known as calcium carbonate.

Aragonite's structure is a lot come compact than calcite's, which means it crystallizes in different shapes. Notably, aragonite is subject to a peculiar type of gemination that is called "hexagonal gemination", in which 3 different crystals grow around the same axis, forming an hexagonal prism.

Gemination: It's a concept that I wish to talk more extensively about in a separate post, but all you need to know is that it happens when crystals grow around, inside, next to and on top of each other.

Aragonite is stable at much higher pressure values than calcite is, so how are we able to see it when it's not subject to that high pressure anymore? Shouldn't all aragonite become calcite when it's brought to armospheric pressures?

This is a particular phenomenon called metastability, the structures of calcite and aragonite are too different for an aragonite crystal to quickly turn into calcite when it's not in stable conditions anymore. Which means, aragonite isn't actually stable in conditions of armospheric pressure, but it takes it too much energy to turn into a stable compoud, and so it stays as it is (I will expand on metastability later on).

Dolomite [CaMg(CO3)2]

Dolomite is another relatively common carbonatic mineral, and it's more or less composed of a 1:1 ratio of calcium and magnesium. It is denser and harder than calcite and aragonite, and its structure can be described as alternating layers of CaCO3 and MgCO3.

Less common carbonatic minerals

Magnesite [MgCO3]

Siderite [FeCO3]

Smithsonite [ZnCO3]

Rhodochrosite [MnCO3]

Cerussite [PbCO3]

Strontianite [SrCO3]

Witherite [BaCO3]

Malachite [Cu2(CO3)(OH)2]

Azzurrite [Cu3(CO3)2(OH)2]

[cleansingreflections]

i uninstalled tiktok are u proud. can i get a rock

just for uninstalling tiktok you get two. pats your head! im very proud of you ^-^

this first one is rhodochrosite, it's a manganese carbonate (MnCO3) and the presence of manganese is why it's pink! it's a carbonatic rock which means it forms underwater via precipitation! it has rhomboedric cleavage and trigonal symmetry

this one is phlogopite! it's also known as brown mica, it's a phyllosilicage rich in magnesium and potassium (KMg3(AlSi3O10)(F,OH)2) <- i dont remember this by memory i just copy pasted it.

it's lesser known than muscovite and biotite (the most common types of mica) but i think it looks very pretty, it has a perfect basal cleavage and monoclinic symmetry. its cool because it breaks in perfect sheets (its structure, like every mica, is in thin sheets made of AlSi3O10 and Mg, that are stacked on top of each other and loosely connected by a series potassium ions and van der waals interactions)

[ir0n-angel]

I posted 17,622 times in 2022

That's 2,641 more posts than 2021!

104 posts created (1%)

17,518 posts reblogged (99%)

Blogs I reblogged the most:

@madangel19

@crackinglamb

@steamcaptain

@lilbittymonster

@taygertot

I tagged 10,640 of my posts in 2022

Only 40% of my posts had no tags

#minerals - 1,851 posts

#hahahahahahahahahahahahahaha - 1,066 posts

#i'm hungry - 873 posts

#awesome art - 685 posts

#gaming dice - 496 posts

#sound on - 406 posts

#this - 249 posts

#but also - 241 posts

#cute art - 237 posts

#for reference - 179 posts

Longest Tag: 140 characters

#can you imagine what the world would be like if our governments weren't run by people with fortunes tied to harmful environmental practices?

My Top Posts in 2022:

#5

Please use punctuation.

Please use punctuation, especially if you’re making a long post. I don’t care if it’s the wrong one. It can be all commas all the time. Or periods. Or be radical and use a semicolon. It’s hard enough to read walls of text. It’s impossible to read them when there’s nothing to break up the sentences.

This message brought to you by one of the millions of users with dyslexia.

18 notes - Posted October 2, 2022

#4

@fiadhaisteach 

A present for you.

21 notes - Posted November 23, 2022

#3

*skin crawls* *hits the block button*

Okay, because there seems to be a little bit of miscommunication here, please take note of the following:

I’m a bi/pan-romantic demisexual, ADHD sufferer, and I have a tenuous acquaintanceship with gender at best. I’m an atheist omnivore that believes black lives matter, trans men are men, trans women are women, nonbinaries are awesome, children are real people and not property, love is love, vaccines save lives, climate crisis is a real problem, platonic love is just as important as romantic love, abortion should be safe and legal and none of your damn business, social media is bad for your health, no one should own assault weapons, and diet culture and capitalism and cult of celebrity should die in a fire.

We got that? Good. I’m not interested in having a debate with y’all over this. I don’t care to hear your point of view and I don’t dance with devil’s advocates. I’m here for rocks, recipes, and the occasional awful pun. If it ain’t enough for you to sit quietly and enjoy the pretty pictures, get blocked. Do not pass Go, do not collect $200. Good riddance.

29 notes - Posted July 20, 2022

#2

If you have the spoons (& willingness), I am curious & would love it if you could tell me why so many pretty minerals look like red lyrium.

Manganese! Also traces of iron, magnesium and/or calcium. But mostly manganese! Manganese gives you red!

I assume we're talking about this bad boy right here:

Rhodochrosite.

Also known as manganese carbonate (MnCO3), it occurs as a hydrothermal vein mineral along with other manganese minerals in low temperature ore deposits such as silver. In its purest form, it creates beautiful crystals like the one pictured above. However, calcium (and sometimes magnesium and zinc) frequently replaces the manganese in the structure, leading to shades of pink, the most common color encountered:

See the full post

31 notes - Posted February 18, 2022

My #1 post of 2022

💙Back again for the third year in a row, with new prompts!💙

FLUFF-uary is a creation celebration designed to display all your sweetness and light for the whole month of February. There will be a prompt for each day and you can do as many as you like, in any combination or order.

Feel free to write, draw, edit photos/videos...whatever you're inspired to create. Have fun, it's not a contest. You can join in for the whole month, do one or two, or even come up with your own. Do it at your own pace, even after February is over. There's no word or size limits or restrictions other than to keep it sweet (no whump, please – we're all about the comfort zone here).

When uploading your fluffs, please tag properly with the prompt, the tag fluffuary2022, and any other applicable tags (like genre, characters, any content warnings if you decide to go NSFW etc.) Any questions can be directed @ir0n-angel​ and @crackinglamb.   As always, we hope everyone has a good time.

(reader-friendly plain text under the cut)

1. Holding Hands

2. Long Conversations

3. Trust

4. Being Silly

5. Moral Support

6. Shopping Together

7. Love Letters

8. Taking a nap together

9. Caretaking

10. Cooking Together

11. Compliments

12. First 'I love you'

13. Night Out

14. Mutual Pining

15. Love Bites

16. Flower Crowns/Putting Flowers In Their Hair

17. 'This Made Me Think of You'

18. Domestic Intimacy

19. Spooning

20. Acts of Devotion

21. Trying Something New

22. Bearhugs

23. Reminiscing

24. Wearing/Stealing Each Other's Clothes

25. Adopting a plant/pet

See the full post

358 notes - Posted January 26, 2022

Get your Tumblr 2022 Year in Review →

[rainbowriderjt]

Rhodochrosite is a manganesecarbonate mineral with chemical composition MnCO3. In its pure form (rare), it is typically a rose-red color,[5] but it can also be shades of pink to pale brown. It streaks white, and its Mohs hardness varies between 3.5 and 4.5.

Rhodochrosite forms a complete solid solution series with iron carbonate (siderite). Calcium (as well as magnesium and zinc, to a limited extent) frequently substitutes for manganese in the structure, leading to lighter shades of red and pink, depending on the degree of substitution. This is the reason for the pink color of rhodochrosite.

[seanwrenn]

'The Alma King' Rhodochrosite Crystals - Sourced at the Sweet Home Mine, Colorado - On display at the Denver Museum of Nature and Science. - - - #rhodochrosite #crystal #crystals #rhodochrositecrystal #Denver #Colorado #sweethomemine #museum #nature #science #denvermuseumofscienceandnature #gems #minerals #cherryred #mnco3 (at Denver, Colorado)

[techmaqofficial]

Elusive Metal-Eating Bacteria Predicted Over a Century Ago Discovered in Lab Accident

Elusive Metal-Eating Bacteria Predicted Over a Century Ago Discovered in Lab Accident

[ad_1]

When microbiologist Jared Leadbeater returned to his office for the first time in months after a work trip, he found something strange. A cream-coloured manganese carbonate (MnCO3) compound, coating glassware he’d left soaking in his sink, had turned dark. Something had stolen some of its electrons.

  “I thought, ‘What is that?'” saidLeadbeater, a researcher at the California Institute…

[vivashamballa]

FICHA TÉCNICA DA RODOCROSITA

Chakra: Coração e Plexo Solar

Dureza: 4 Mohs

Signos: Touro, Virgem e Capricórnio

Origem: Argentina, África do Sul, EUA, Grécia, México

Composição química: MnCO3, carbonato de manganês

Efeitos esotéricos e psíquicos:

Solidão

Mágoas

Medo

Insegurança

Auxilia nos traumas causados por abusos

Auto perdão

Confiança

Amor incondicional

Equilíbrio emocional

Efeitos terapêuticos:

Anorexia

Compulsão

Doenças estomacais

Asma

Câncer

Fígado

Sangue

Texto Fonte: Helena Cristais

[abdulaziz2023]

وردة الأنكا - الرودوكروزيت Rhodochrosite

معدن خام يتكون من كربونات المنغنيز بالتركيب الكيميائي MnCO3. وفي شكله النقي (النادر) ، عادة ما يكون لونه أحمر وردي، ولكن العينات غير النقية يمكن أن تحوي اللون الوردي إلى اللون البني الشاحب.

اعتقد شعب الإنكا أن الرودوكروزيت Rhodochrosite هو دم الحُكام القدامى الذي تحول إلى حجر.

الإنكا: إمبراطورية قديمة بنتها شعوب من الهنود الحمر في منطقة أمريكا الجنوبية، كانت أكبر الإمبراطوريات في أمريكا الجنوبية، وهي ذات حضارة قديمة وتشمل أرض الأنكا دول بوليفيا والبيرو والإكوادور وجزءاً من تشيلي والأرجنتين.

[brutal-nemesis]

If your characters were minerals, what kind(s) would they be and why?

This is it. This is the best fucking question ever. Everyone else can go home. Thank you.

We’re just gonna do my current 3 whumpee/whumper pairs (and Castys because I Have A Disease).

Jairus: Corundum (Al2O3)

It’s got a hardness of 9 (out of 10) on the Mohs hardness scale, and he is a tough boi so this fits. Also it kinda looks like a spear.

Einn: Diamond ( C )

Hard to destroy with their hardness of 10! (but just so we’re clear diamonds are only metastable at surface conditions whoever said diamonds are forever was wrong 🤗)

Corvus: Realgar (AsS) (it’s the red crystals)

Partially because the formula is AsS and he would think that’s hilarious and partially because it’s unstable at surface conditions and that boy seems unstable at surface conditions.

Flynn: Microcline (amazonite) (K(AlSi3O8)

I mean just look at it. It looks like a piece of the ocean. A piece of the great wave 😳🌊

Erebus: Tourmaline ((Na, Ca)(Li, Mg, Al)(Al, Fe, Mn)6(BO3)3(Si6O18)(OH)4)

Tourmaline often has these gorgeous bands of color, and that mixing of different colors that still remain distinct from each other, well :) it will be relevant later.

Neteri: Rhodochrosite (MnCO3)

Well it kinda looks like meat. And my girl loves to surgery. Also she likes pink.

Castys: Galena (PbS)

 The lead in it makes it super dense. This boy is super dense (he inherited it from me 😎). That is all

[tangledwing]

 Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3. In its (rare) pure form, it is typically a rose-red color, but impure specimens can be shades of pink to pale brown. Good Luck Pocket, Main Stope. Home Sweet Home Mine, Alma, Colorado, USA.

[swirling-orbs-of-disorder]

rhodochrosite  MnCO3. manganese carbonate

photo:  Tóth László, 2014

[ir0n-angel]

If you have the spoons (& willingness), I am curious & would love it if you could tell me why so many pretty minerals look like red lyrium.

Manganese! Also traces of iron, magnesium and/or calcium. But mostly manganese! Manganese gives you red!

I assume we're talking about this bad boy right here:

Rhodochrosite.

Also known as manganese carbonate (MnCO3), it occurs as a hydrothermal vein mineral along with other manganese minerals in low temperature ore deposits such as silver. In its purest form, it creates beautiful crystals like the one pictured above. However, calcium (and sometimes magnesium and zinc) frequently replaces the manganese in the structure, leading to shades of pink, the most common color encountered:

While you can find the pink tumbled stones in just about any rock gift shop, natural rhodochrosite crystals are rare and insanely expensive. Most are destroyed in silver mining operations.

As for why the artists at Bioware chose to make red lyrium look like rhodochrosite... I mean, look at it... it's mesmerizing... so beautiful...

*blinks, shakes head* Ahem.

Anyway, I hope that helped answer your question. Thank you for giving me the opportunity to nerd out over my favorite topic. 💖

[loccodecor]

View this post on Instagram

A post shared by Tristen (the FlamingYeti) (@locco_decor)

Another rare find of a rhodochrosite specimen. Comment:Reserved with a number to reserve your piece Rhodochrosite assists in doing the necessary work of recovering, reliving and releasing the memories of one’s emotional woundings. SKUs: LD-VCA-ROCH-001 7 x 5.5 x 4 cm / 212g / $40 General info: Rhodochrosite Mohs Hardness: 3.7 Gravity: 3.5-4 Member of: Calcite Group Crystal System: Trigonal Formula: MnCO3 Element: Fire, Water Chakra: Heart, Solar Plexus Perm Link: http://www.loccodecor.com/products/LD-VCA-ROCH-001 SKU: #loccodecor#mineralspecimen #mineralspecimens #mineralsforsale #rocksforsale #crystalsforsale #mineralcollector #rockcollector #mineralcollection #rockcollection #crystalcollector #crystalcollection #rockhounds #rockhounding #mineralogy #minerales #minerals #mineral #mineralsofig #mineralporn #crystalsofig #crystalporn #crystals #crystal #geology#shoponline#Rhodochrosite#pinkspecimen#pinkmineral" https://www.instagram.com/p/CGLaO6rhB3X/?igshid=zpeog9alnmqy

[zuziasuchor]

Notes from Emmanuel Cooper on glazing.

All glazes have 3 mutual components; fluxes (make the glaze melt), amphoterics or stabilisers (give body) and acidic oxides (glass forming or bone part of the glaze)

fritz are a way of adding water soluble materials to a glaze, and act as a powerful flux. Potassium, sodium and borax are readily available in fritted form. 

Glaze from local clays: 

clay should be dried out completely and broken into smaller lumps and these should be dropped into warm water. 

Once they have slaked down, the clay slip should be mixed thoroughly and poured through a 80s mesh sieve. 

it will take around 2-3 days to settle, then the slip should be put out to dry (or kept in container to paint with)

most local clays, particularly those rich in iron (approx 8%) make great glaze materials. They will melt on their own at 1250 to form a dark coloured (usually brown or black) shiny glaze. 

if the local clay isn’t as rich in iron or doesn’t flux well due to particle size being too large, it can be ground down in a pestle and mortar.

colouring glazes:

many potters will experiment with a handful of good workable glazes rather than try out different recipes. e.g. a reliable clear shiny glaze can be easily opacified by the addition of tin oxide or zironium silicate. Such a glaze can also be coloured adding metal oxides, underglaze colour and stains. 

Keep to one clay body when figuring out glaze- need to keep a constant.

white glazes: 

Tin Oxide (SnO2) will make most shiny glazes opaque- an addition of 8-12% will give a clear, blue white. Zincronium Silicate (ZrSiO4) (zircon) is a less refined form of zincronium oxide and is used as an opacifier- 6-15% will give a neutral or cream white.

coloured glazes (oxides):

Chromium Oxide (Cr2O3) in most glazes gives an opaque green if added 0.5-2%.

Cobalt Carbonate (CoCO3) produces a blue glaze varying from pink mauve (in a dolomite glaze), and a vivid blue in an alkaline glaze, to midnight blue in a feldspathic glaze- additions will vary from 0.25-3%, and results are not affected strongly by reduction or oxidation atmospheres. 

Cobalt Oxide (CoO) gives similar results cobalt carbonate but it is, weight for weight, more powerful. Tends to distribute itself less evenly in the glaze and can cause blue specks. 

Copper Carbonate (CuCO3) produces colours that range from pink (in dolomite glazes) and red (0.5% in reduction), green (4%- strong in lead glazes) to turquoise (2% alkaline in oxidation)

Copper Oxide (CuO) is similar to copper carbonate but is weight for weight more powerful. (note: both copper carbonate and copper oxide encourage the release of lead during the glaze firing making the lead soluble in acid solutions- therefore, it is not food safe and should not be present on the inside of functional ware. 

Llmenite (FeO2TiO2); a naturally occuring ore containing iron and titanium, can cause interesting brown speckles in bodies and glazes 

Iron Oxide: Black (FeO) or Red (Fe2O3): Black iron oxide is stronger than the red, but better results are obtained using the synthetic red iron oxide. Depending on the amount added (1-15%) and the firing atmosphere, the colour will range from pale blue green to brown black red (reduction), pale honey to olive brown to black red (oxidation) in feldspathic glazes. In dolomite glazes, the colour tends to be more muddy and muted. Iron oxide is a flux, and will cause glazes to run more.

Maganese carbonate (MnCo3) gives pink mauve colours in alkaline and dolomite glazes, and browns in feldspathic glazes using 1-8%.

maganese dioxide (MnO2) gives similar results to MnCo3 but is weight for weight more powerful. 

Nickel Oxide: (NiO) will give colours ranging from ice blue (with zinc oxide glazes), yellow (with zinc oxide and titanium dioxide), pink mauve (with barium carbonate and zinc oxide) to muted greens and greys in most glazes. amounts added range from 1-3%

Rutile (FeTiO3) sometimes called the rutile sand, is an ore containing titanium with iron oxide. It gives buff or brown colours in oxidation glazes, which can be mottled or crystalline, and it opacifies the glaze. In reduction rich blue grey colours can be achieved. Amounts added may be 2-15%. 

Titanium Dioxide (TiO2) gives glazes a matt creamy white colour in oxidation, and is often used in crystalline glazes, in reduction it gives rich blue mottled effect. add 2-10%

Vanadium Pentoxide (V2O5) gives colours ranging from yellow to brown and tends to break up the glaze- added in amounts of 3-8%

Yellow ochre (Fe2O3) natural form of iron oxide containing clay, gives similar effects in the glaze.