#pyrrhotite

[oldearthminerals]

Pyrite After Pyrrhotite Pseudomorph Specimens from Trepca Mine Complex, Mitrovica, Kosovo.

https://www.oldearthminerals.com/

#pseudomorph #pyrite #pyrrhotite #crystals #mineralspecimen #minerals #mineralcollecting #mineralcollection

[er-cryptid]

Pyrrhotite

Natural History Museum of Denmark, Mineral Hall

[sourcefield]

“It is a wholesome and necessary thing for us to turn again to the earth and in the contemplation of her beauties to know the sense of wonder and humility.” // Rachel Carson . Pyrrhotite w Dolomite // Nikolai Mine, Dal’Negorsk, Russia . Available via DM 💌 . . . #pyrrhotite #dolomote #russianminerals #crystals​ #minerals #sourcefield ​#sourcefieldshop​ #crystalshop ​#crystalsofig #crystalsofinstagram​ #mineralsofinstagram #nature #naturalwonders #crystalline #intelligentdesign #divinedesign #naturalart #earthart #ourplanet ​#earth​ #inspiration #crystalmagic #crystallove #lovestoned (at Planet Earth) https://www.instagram.com/p/CVEG0ABh9kg/?utm_medium=tumblr

[mineralsandsomerocks]

Galena, Tetrahedrite, Pyrite, and Pyrrhotite

Locality: Blue Bell Mine, Riondel, British Columbia

[wigmund]

From Mindat.Org Photo Of The Day; August 27, 2018:

Pyrrhotite: Fe7S8; Pyrite: FeS2

Locality: Zulu pegmatite, Pioneer village n°2, Insiza District, Matabeleland South, Zimbabwe

“Massive pyrrhotite and pyrite in a drill core drilled in October 2017. Massive, visible pyrrhotite seems to be very rare at Zulu and this is the only example so far. Collected by: Wolfgang Hampel ”

[housecatchem]

Fe + S = FeS

This was the first chemical process described in my chemistry schoolbook. It was used to:

1. Illustrate a chemical process where two elements are interreacting and forming a compound (in opposite to a mix).  2. Show an example of Stoichiometry or the law of conservation of mass. Iron and sulfur should be mixed in a proportion of 7:4. 3. It’s an example of an exothermic reaction which releases a lot of heat once initiated.

I feel kind of sentimental about it. But to be honest, it’s not an experiment to perform in a kitchen lab. Better to be done outside with some precautions. So, instead of doing it myself I am watching this video: 

Browsing through the youtube videos I found this reaction is also able to illustrate another interesting physical phenomenon known as a thermoacoustic engine or a Rijke tube:

There is a funny fact to notice. As I already mentioned this reaction was used as an example of a stoichiometry. But the product, iron (II) sulfide in its mineral form can be found either as Pyrrhotite or as Troilite. Pyrrhotite is an example of  nonstoichiometric compound with the formula Fe(1-x)S (x = 0 to 0.2). Here is a picture of Pyrrhotite from A love for minerals tumblr:

Notes with the picture (source): “Pyrrhotite, Manganoan Calcite and Quartz; Locality: Stan Terg Mine, Trepča, Kosovska Mitrovica, Kosovo”

Troilite (with the formula FeS) can be found either as a rare mineral on Earth or as a meteorite compound. 

Picture from SpaceTime with Stuart Gary tumblr described as: “Extremely rare meteorite rocks Queensland Museum’s collection.”

Though the chemical formula of both minerals is “almost” the same the properties are different. Pyrrhotite is ferromagnetic, a conductor and poorly dissolves in acids as opposed to troilite or pure FeS. 

[fishstickmonkey]

Pyrrhotite

Photo by Chip Clark

Smithsonian National Museum of Natural History

[kool-rox]

Pyrrhotite: an iron sulfide mineral with the formula Fe(1-x)S (x = 0 to 0.2). It is a nonstoichiometric variant of FeS, the mineral known as troilite. Pyrrhotite is also called magnetic pyrite, because the color is similar to pyrite and it is weakly magnetic

[er-cryptid]

Pyrrhotite

Natural History Museum of Denmark, Mineral Hall

[zootycutie]

And Footi's Mixel Gem is complete, both capping off the Spikels and Series 3 for the series. ^_^ Pyrrhotite: Energy that helps the body feel good, assists to let go of fear and anger, helps to find powerful solutions to life problems, helps aid in the birth of miracles. Weapon: Foot spike.

[hematitehearts]

Pyrrhotite and Arsenopyrite

Locality: Trepča, Kosovska Mitrovica, Kosovo

[bijoux-et-mineraux]

Pyrrhotite with Galena - Herja Mine, Maramures Co., Romania

[minerali-list]

Pyrrhotite  Fe7S8

Russia, Primorsky Krai, Dalnegorsk

Size 53*43*38mm

Photo:  Ekaterina  Pakhneva

[linkerbell]

look- its that bitch

this was supposed to be an animation but i gave up after the first slide ᕕ( ᐛ )ᕗ

[meowrai]

Posting this here too~

I'm a day late but i drew something for @linkerbell since yesterday was her bday :D i couldn't decide between her triphane and pyrrho but...... i went with pyrrho in the end uwu What is perspective anyways Hope u like it Kourt~ i finally learnt how to make that outer line thingy lm a o