This is your board for talking about and sharing your favorite rocks, minerals and fossils
Objects created from minerals like jade, cinnabar and malachite are fine too. Just keep it rock and mineral related and keep shitposting as minimal as possible.
Let's have a bismuth thread.
Nice dead board faggotron
Sincerely, /v/
This board rocks.
Help me identify rocks pls
I just found some rocks on my local beach. Anyone able to give me information about them?Some dupes
Thin section and hand sample ID Tips
Let's have a thread for describing and identifying rocks from thin sections and hand samples.I've currently got an assload of igneous and metamorphic rocks to describe and ID, but I get the feeling that I'm fucking up and spending too much time on things that I should gloss over, or that I'm potentially calling a garnet a biotite just because it doesn't seem to have it's habit in the thin section.
I just grabbed this image from google since I can't take pictures through the microscope.
I think I've mostly forgotten how to ID a new mineral specimen in a thin section, and I'm mostly just trying to match up minerals to a short list of common minerals I already know.
How would you ID rocks and minerals, and how would you format your lab notes so that you'd have relevant diagnostic information?
Malachite thread.
(Picture from google although Im waiting for mine in the mail) I love thallium minerals and arsenic minerals, the reds are axquisite from both Tl and As. Anyone else collect by chemistry here?
Hey dudes, /x/ here.
You're probably gonna want to beat me up for stating this, but is there any love in here for the feeling that granite expresses?
I come from a place where most old buildings are from granite stone, and it does give the town a strange mood, like if there is a perma-fog stuck in time. This rock has so much importance, that in pre-roman times there where a few cults that went as far as describing it as the primordial rock. They even spent quite a while looking for something they called the "Granite Seed".
So, I dunno. Granite thread? Mysticism + rocks thread?
Sculptorfag here
I must say that out of all the rocks I have touched, I loved trachyte the most.
Sandstone is good like a country girl, and a crystal is fancy like an expensive whore, but where is your love for the noble rocks?
Why leave marble by the roadside?
Do you guys like to post rocks?
Do you like to post rocks that are the same type/color?
Then I have a neat board for you.
How about a minerals crafts thread?
What does /rocks/ think of rock representation in videogames?
Self Promotional Shitposting
Anyone on here like drawing or sketching rocks/landscapes/geological shit?
I want to do more volcano themed drawings. Criticism is welcome
The Willamette Meteorite, officially named Willamette,[3] is an iron-nickel meteorite discovered in the U.S. state of Oregon. It is the largest meteorite found in North America and the sixth largest in the world.[4][5] There was no impact crater at the discovery site; researchers believe the meteorite landed in what is now Canada or Montana, and was transported as a glacial erratic to the Willamette Valley during the Missoula Floods at the end of the last Ice Age (~13,000 years ago).[6] The meteorite is currently on display at the American Museum of Natural History, which acquired the meteorite in 1906.[5] Having been seen by an estimated 40 million people over the years, and given its striking appearance, it is among the most famous meteorites known.
Rock Identification
I'd just like to say to Admin that this board is sitting-by-the-fire-tier /comfy/Anywho, post here for identification in case you have any on hand you aren't sure its species.
are there pink rocks?
Jobs With Gems
Anyone here with knowledge about good opportunities in the gem - jewelry industries? From being a cutter, faceter, appraiser, etc.?
Chalcedony thread.
Here comes Peter Cottontail
Hoppin' down the bunny trail
Hippity hop hop Easter's on it's way
Happy Easter geophiles
This is a crystal cave in Mexico. Are they very rare? Where else in the world does this exist? Are they ever colorful?
How would one come across seeing the beautiful colorful rock formations in real life? Are they usually clustered together or spaced widely apart?
Best rock
Does rocks approve of Earth Elementals?
In WoG NU you can upgrade them to Mineral Elementals
What does /rocks/ think of crystal healing and the magical properties of rocks?
Is it legal to own a stalagtite?
Also stalagtite and stalagmite thread.
So what does /rocks/ think about the crystal skulls? Are any of them not hoaxes?
IGNEOUS ROCKS
This is what I do in my spare time. Clockwise starting at the top left:Basalt (igneous, aphenitic, mafic, and probably plutonic judging by the lack of vesicles).
Obsidian (igneous, aphenitic and amorphous, felsic, volcanic).
Dioritic Pumice (Igneous, phaneritic, felsic, volcanic). Evidence of a very volatile stratovolcano probably formed inland from a subduction zone. It's delicate too, I had to but it in a plastic box because it sheds pyroclastic material (volcanic "ash") if handled too roughly.
Vesicular basalt (igneous, porphyritic [otherwise aphenitic with phenocrysts], mafic, volcanic). I'm not sure what exactly is in the phenocrysts, but its likely to be high in silica and perhaps precipitated from the lava (mafic rocks tend to solidify at higher temperatures than felsic rocks due to silica's low melting point). I hypothesize the contracting basalt squeezed out impurities as it rapidly cooled after the lava surfaced.
Playa Mar Chiquita in Puerto RIco
it's very nice
Post close-ups only.
Quartz
I don't think I'm going to get much response on /geo/ so I'll just post this here.I've been on the lookout for quartz of late but have had no luck. Any advice as to regions/locations I should be looking? Also what's the best way to harvest it?
>I'm from New England.
H-hi /rocks/…
Is petrified wood rocks? pls no bully ;-;
is bismuth rocks
Do you have a rock collection? What's your favorite specimen? What's your most interesting story about acquiring a new piece?
Rhodochrosite
Named for the Greek rhodon, meaning “rose” and chrosis, meaning “coloring.” Rhodochrosite is found in low-temperature to mid-temperature hydrothermal vein deposits, metamorphic rock, commonly in carbonatites, in sediments either as an authigenic or secondary mineral, and occasionally in granite pegmatites. Hundreds of widespread localities, but fine crystals may be found in Romania, Germany, Russia, Canada, the USA, Mexico, Peru, Argentina, South Africa, and Japan.
Formula
MnCO3
Crystal System
Trigonal
Crystal Habit
Massive - Granular, Columnar, Botryoidal
Cleavage
Perfect, Perfect, Perfect
Luster
Vitreous (Glassy)
Color
pinkish red, red, rose red, yellowish gray, brown
Streak
white
Class
Trigonal - Hexagonal Scalenohedral
Fracture
Brittle - Conchoidal
Hardness
3
http://www.dakotamatrix.com/mineralpedia/7480/rhodochrosite
Wulfenite thread.
Greetings
Hello, /rocks/.We at /32/ really like your board, and believe that it could develop into an even nicer place.
I bring to you a potential board-tan, to demonstrate our appreciation.
Best wishes,
/32/
p.s.: visit any time.
Houseki no Kuni (宝石の国 Country of Jewels)
I think you might like this, /rocks/!http://en.wikipedia.org/wiki/Houseki_no_Kuni
It's a manga all about jewels!
The main character is Phosphophyllite.
Animated PV: https://www.youtube.com/watch?v=3pzIQ54cwiA
Manga: http://bato.to/comic/_/comics/houseki-no-kuni-r10749
>Objects created from minerals like jade, cinnabar and malachite are fine too
Can you explain this to a rock pleb? What's the difference between a minerals, rocks, and gems?
Aren't jade, cinnabar, and malachite minerals already? How are they created from minerals?
Rauk
Sharing some /rauks/.
You might be interested in this post about diamonds and their modern history. Any contributions about diamonds and ethical diamond alternatives are welcome!
>>>/tradfem/96
TGMS
anybody at the Tucson Gem & Mineral Show?
/fg/ - Fossil General
Amateur Hour Edition
Share Thread where we discuss and post our local exploits.
>=====================================
>B..b.buh fossils aren't rocks
Fossils have had all their organic components with silica(SiO2)
>Where can I find my own fossils?
http://en.wikipedia.org/wiki/List_of_fossil_sites
http://www.discoveringfossils.co.uk/fossil_hunting_guide.htm
Feel free to post any additions to copypasta for this fledgling general. Common questions will be submitted to save time for the OP.
Azurite thread.
Tourmaline thread.
I have found our board mascot.
what's your birthstone?
best month reporting in.
What is /rocks/'s favorite geological process? I think fractional crystallization during the asthenospshere's pressure drop along plate boundaries is cool because it keeps metal rich silicates such as olivine form reaching the surface, meaning phaneritic mafic rocks tend to be less common in the crust. Also I like how cratons are mostly felsic, which adds extra mistique to the basalt of the sea floor. It's also nice to live close to an orogenic mobile belt meaning I can observe both paleozoic sediments and intrusive plutonic granite formations within a five minute walk from my house
(Is anyone else as autistic ally passionate about geology as me?)
I want to start apreciating rocks, but I don't know where to start.
I really like Lapis Lazuli. Please tell me it's not an entry level rock. Hope this helps.
Since the verdict was handed down perhaps now is an appropriate time for a Fergusonite thread?
GIMMIE SOME FUCKING SEXY ROCKS AND FACTS ABOUT THEM
GO!
Personal Collection thread.
This is a thread where we post pieces of our own fossil/rock/mineral collection.
We all saw it coming.
Can I get an ID on these rocks?
How does /rocks/ feel about splunking?
My filename shows my thoughts on it. If there was just 50% more room for most of those, I'd be fine, but not that.
Heinrichite