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My first rock was a very basic sliver of geode. I was about eight. I promptly broke it. So I tapped it back together. I've moved several times, even out of country and back, but I still have it. And the tape still holds. #Rocktober #Crystal https://twitter.com/FossilLocator/status/1311508862806130688
Day 2 of #Rocktober - #Igneous rocks.
Anyone who has talked to me long enough knows that I love Obsidian. Formed by rapidly cooling lava, it comes in black, green, and snowflake. It's useful as a tool, a weapon, and as decoration. It's one of the most important rocks in history.
Anyone who has talked to me long enough knows that I love Obsidian. Formed by rapidly cooling lava, it comes in black, green, and snowflake. It's useful as a tool, a weapon, and as decoration. It's one of the most important rocks in history.
Day 3 of #Rocktober - #Microscopic
I have nothing personal to share as I don't have the tools for microscopic geology, so here are some pics from https://www.earth.ox.ac.uk/~oesis/micro/ showing how beautiful rocks are when you look really close.
Feldspar
Garnet Mica Schist
Olivine Gabbro
Coal
I have nothing personal to share as I don't have the tools for microscopic geology, so here are some pics from https://www.earth.ox.ac.uk/~oesis/micro/ showing how beautiful rocks are when you look really close.
Feldspar
Garnet Mica Schist
Olivine Gabbro
Coal
Day 4 #Rocktober - #Ventifact
A ventifact is a rock shaped by wind rather than water, humans, etc. You see them in arid areas, like, oh, Mars, where winds reach up to 60mph and there is not a lot of protection against it.
Below image from https://mars.nasa.gov/mgs/sci/fifthconf99/6152.pdf
A ventifact is a rock shaped by wind rather than water, humans, etc. You see them in arid areas, like, oh, Mars, where winds reach up to 60mph and there is not a lot of protection against it.
Below image from https://mars.nasa.gov/mgs/sci/fifthconf99/6152.pdf
Day 5 #Rocktober #Purple
NGL, I like rocks cause they're pretty. Like this piece of Chalcopyrite!
It's a copper iron sulfide mineral, which is typically brass yellow. This one has a purple tarnish to it, and it glitters! 
Thanks to @FossilLocator for the identification.
NGL, I like rocks cause they're pretty. Like this piece of Chalcopyrite!
It's a copper iron sulfide mineral, which is typically brass yellow. This one has a purple tarnish to it, and it glitters! Thanks to @FossilLocator for the identification.
Day 6 #Rocktober - #Boulder
Oklahoma sandstone is widely used for both building and decorations. Like these sandstone boulders lining the entrance of a local park. You'll often see them displayed like this, and you honestly don't want to know much they cost.
Oklahoma sandstone is widely used for both building and decorations. Like these sandstone boulders lining the entrance of a local park. You'll often see them displayed like this, and you honestly don't want to know much they cost.
Day 7 #Rocktober #Fossil
Speaking of Oklahoma, our state fossil (as shown in @FossilLocator's book below) is the Saurophaganax Dinosaur! It's a genus of allosaurid from the Late Jurassic.
One is on display at the @SamNobleMuseum, a must visit! (wear a mask)
Dino
are theirs.
Speaking of Oklahoma, our state fossil (as shown in @FossilLocator's book below) is the Saurophaganax Dinosaur! It's a genus of allosaurid from the Late Jurassic.
One is on display at the @SamNobleMuseum, a must visit! (wear a mask)
Dino
are theirs.
Day 8 #Rocktober
Oklahoma Sandstone is a #Sedimentary rock. The Works Progress Admin used it in the 30s creating a distinct style as seen in this former Nat Guard Armory.©Steven Price https://en.wikipedia.org/wiki/Hominy_Armory
I was thrown off this Armory roof as a toddler.
There was a rope.
Oklahoma Sandstone is a #Sedimentary rock. The Works Progress Admin used it in the 30s creating a distinct style as seen in this former Nat Guard Armory.
©Steven Price https://en.wikipedia.org/wiki/Hominy_ArmoryI was thrown off this Armory roof as a toddler.
There was a rope.
Day 9 #Rocktober #Sphere
Rocks shaped into sphere's by nature are called concretions or spherulites.
Rocks shaped by humans are called petrospheres, which is literally "stone ball." They are found all through pre-history, used as tools, weapons, games, etc.
@museonacionalcr
Rocks shaped into sphere's by nature are called concretions or spherulites.
Rocks shaped by humans are called petrospheres, which is literally "stone ball." They are found all through pre-history, used as tools, weapons, games, etc.
@museonacionalcr
Day 10 #Rocktober #Quarry
Kenilworth Castle, England, started being built in the 12th century from quarried New Red Sandstone. When it fell into disrepair in the 18th cen, locals used the castle as a quarry. They knicked the stones for building/repairing their homes.
me 2008
Kenilworth Castle, England, started being built in the 12th century from quarried New Red Sandstone. When it fell into disrepair in the 18th cen, locals used the castle as a quarry. They knicked the stones for building/repairing their homes.
me 2008
Day 11 #Rocktober #Metamorphic
Metamorphic rocks have been subjected to high heat or stress causing a physical and chemical change. I think we're all metamorphic rocks right now.
Marble is an example of such rocks, here are pics I took in 2017 of its use in building/decor.
Metamorphic rocks have been subjected to high heat or stress causing a physical and chemical change. I think we're all metamorphic rocks right now.
Marble is an example of such rocks, here are pics I took in 2017 of its use in building/decor.
Day 12 #Rocktober #Vug
I am very much an amateur at this, so I love when I learn new things. Like Vug! It's is a small to medium-sized cavity inside a rock. A geode is a vug, but not all vug's are geodes. Vug is Cornish-ish for cave.
Rob Lavinsky https://en.wikipedia.org/wiki/Vug
I am very much an amateur at this, so I love when I learn new things. Like Vug! It's is a small to medium-sized cavity inside a rock. A geode is a vug, but not all vug's are geodes. Vug is Cornish-ish for cave.
Rob Lavinsky https://en.wikipedia.org/wiki/Vug
Day 13 #Rocktober #DrillCore
The deepest artificial point on Earth is the Kola Superdeep Borehole, Russia. It broke the record of then deepest Bertha Rogers Borehole in Southwest Oklahoma! To hold a drill core from either of these...
Both are now closed and abandoned.
The deepest artificial point on Earth is the Kola Superdeep Borehole, Russia. It broke the record of then deepest Bertha Rogers Borehole in Southwest Oklahoma! To hold a drill core from either of these...
Both are now closed and abandoned.
Day 14 #Rocktober #Garnet
The January birthstone is Garnet. It's the only one which hasn't had any kind of changes to its standing since the 15th century.
Birthstones themselves have their origin all the way back in the Book of Exodus!
RF stock photos
The January birthstone is Garnet. It's the only one which hasn't had any kind of changes to its standing since the 15th century.
Birthstones themselves have their origin all the way back in the Book of Exodus!
RF stock photos
Day 15 #Rocktober #Desert
Every year, millions of tons of mineral rich sand blows from the Saharan Desert to the Americas. This sand helped to build the Bahamas which lacks a natural source of nutrients. The sand also fertilizes the Rain Forest! https://www.smithsonianmag.com/smart-news/saharan-dust-helped-build-bahama-islands-180952173/
Every year, millions of tons of mineral rich sand blows from the Saharan Desert to the Americas. This sand helped to build the Bahamas which lacks a natural source of nutrients. The sand also fertilizes the Rain Forest! https://www.smithsonianmag.com/smart-news/saharan-dust-helped-build-bahama-islands-180952173/
Day 16 #Rocktober #Gemstone
One of my favorite pieces is this (likely synthetic made) cabochon black star sapphire.
Inclusions in the stone causes asterism, which is a star-like reflection. It's the same effect seen in moonstone, except these are stars.
One of my favorite pieces is this (likely synthetic made) cabochon black star sapphire.
Inclusions in the stone causes asterism, which is a star-like reflection. It's the same effect seen in moonstone, except these are stars.
Day 17 #Rocktober #Fold
An anticline is a type of geological fold. In 1901, Croatian-American engineer Antun Lučić (Anthony Lucas) successfully drilled for oil at the Spindletop anticline in Beaumont, TX. This kicked off the US oil age, for better or worse.
Public Domain
An anticline is a type of geological fold. In 1901, Croatian-American engineer Antun Lučić (Anthony Lucas) successfully drilled for oil at the Spindletop anticline in Beaumont, TX. This kicked off the US oil age, for better or worse.
Public Domain
Day 18 #Rocktober #Green
As a child, I was always buying rocks at those displays at museums. Unfortunately, I lost all the identification cards, so not sure what this hunter green piece is. It's a bit of a mystery how I didn't go into geology... but history is kinda related.
As a child, I was always buying rocks at those displays at museums. Unfortunately, I lost all the identification cards, so not sure what this hunter green piece is. It's a bit of a mystery how I didn't go into geology... but history is kinda related.
Day 19 #Rocktober #RoadCut
Despite the song, Oklahoma is more than just plains. It has the most varied ecological regions of all the lower 48. This means we have mountains, and with those, we have road cuts. We also have the world's tallest hill: Cavanal Hill (short by 1 foot).
Despite the song, Oklahoma is more than just plains. It has the most varied ecological regions of all the lower 48. This means we have mountains, and with those, we have road cuts. We also have the world's tallest hill: Cavanal Hill (short by 1 foot).
