These delightful flowery specimens are sedimentary rocks found in a specific location in China.
They formed from fine-grained sediments deposited hundreds of millions of years ago at the bottom of a quiet ocean. The sediments are rich in calcium carbonate – the most commonly used mineral by organisms making shells in the ocean. Calcium sits one row above the element Strontium in the periodic table, so strontium and calcium have similar chemical characteristics and sometimes strontium can get stuck in crystal structures in place of calcium.
These crystals have grown from the mineral celstite (or celestine), a strontium sulfate mineral. After the sediments were deposited, fluids moved through the sediments, picking up elements that didn’t fit perfectly where they were. The strontium in the sediments migrated to this surface, growing new crystals in the process. The crystals grew outward from single points due to the combination of a flat surface in the sediments and the natural arrangement of the atoms in celestite.
Celestine or celestite (SrSO4) is a mineral consisting of strontium sulphate. The mineral is named for its occasional delicate blue colour. Celestine is the principal source of the element strontium, commonly used in fireworks and in various metal alloys.
i'm in love with strontium and also how do you get people interested in your ocs? i am too afraid to write about mine and nobody cares about them either :/
I honestly don’t know?? I just naturally post stuff about my ocs– i don’t even know how interested people are in them.
I guess you should start by posting stuff about them. Write about them, draw them, introduce them to your followers. Keep talking about them! At first i was afraid that others wouldn’t like my ocs too, because i found the idea of ocs based off the Periodic Table too weird myself, but then i stopped caring and posted about them.
Of course, it’s hard to get people interested in original content–my original stuff barely gets half of the attention my fanart does, but i never let that stop me!
Don’t be afraid to talk about your ocs, this is the first step ;v;
Geologists find new minerals all the time. Whenever one is found, the mineral is characterized chemically and its structure is examined using X-rays. Most of the time, new minerals can be readily explained by knowing a bit of mineralogy and looking at a periodic table. This one can’t be.
On the periodic table, elements that are above and below each other often have similar chemical properties. Rubidium, for example, often sits in the same spot in minerals that Potassium does as it sits directly below it. Most new minerals are the result of substitutions like that; if a rare element is concentrated enough, a new mineral will form with the same structure as known minerals but with a different composition.
That’s what makes Putnisite unique. This beautiful blue mineral contains strontium, calcium, carbonate groups, sulfate groups, and water in its structure, but its structure isn’t anything that’s been characterized before. However it was made, it is a unique way of stacking atoms together that we’ve never seen on Earth before. Some of the atomic layers form rings, others form sheets, and there are hydrogen bonds holding those layers together. We’ve made many materials synthetically as well and still, based on this data, never combined elements into the same structure as putnisite.
The mineral was discovered in a mine at Lake Cowan, Australia, and it was named after Andrew and Christine Putnis; a pair of the Institut für Mineralogie, Universtität Münster for their contributions to mineralogy. It forms these brilliant blue, nearly-cubic crystals, and it is very soft, with a hardness of 1-2 on the Mohs scale.
As well as strontium-90, cesium,etc. The information from these reports was not released to the public. Plutonium is the most poisonous of all substances, one ingested molecule of it can cause cancer. Why is this knowledge being withheld?
You’ll need to go the linked site for the actual charts.
Scientists announced this week that they have created the most advanced clock in the world.
The clock, this week in the journal Nature, is so precise that it would neither lose nor gain one second in about 5 billion years of continuous operation. That’s pretty good, considering that the Earth itself is only around 4.5 billion years old.
Since the 1960s, official timekeeping has been based on the natural oscillations of atoms. And scientists just continue to come up with better designs for so-called atomic clocks. A few years ago, a team unveiled a clock that would neither gain nor lose one second in about 3.7 billion years.
The Daiichi nuclear power plant, struck by a huge quake and
tsunami in March, released radiation into the atmosphere that
was carried by winds and deposited widely by rain and snow in
eastern Japan.Setagaya, a major residential area in Tokyo about 235 km
(150 km) southwest of the plant, said this week it found a
radioactive hotspot on a sidewalk near schools.The radiation there measured as much as 2.7 microsieverts
per hour, higher than some areas in the evacuation zone near the
plant.Washing down the area with water did not help lower the
radiation levels, Setagaya Mayor Nobuto Hosaka said but added
that the district had been advised that it was safe for people
to walk by.The city of Funabashi in Chiba, near Tokyo, said on Thursday
that a citizens’ group had measured a radiation level of 5.8
microsieverts per hour at a park and it was now making checks.Government data this week showed radiation levels
in the 20 km radius evacuation zone around the Daiichi
plant ranged from 0.5 to 64.8 microsieverts per hour.About 80,000 residents were forced to evacuate from this
zone. The unit microsievert quantifies the amount of radiation
absorbed by human tissue.In Yokohama, radioactive strontium-90, which can cause bone
cancer and leukaemia, was detected in soil taken from an
apartment rooftop, media reports said.Strontium has been detected within an 80 km zone around the
Daiichi plant, but this is the first time it has been found in
an area so far away, the reports said.There is no agreement among experts on the health impact of
radiation exposure, but after Chernobyl, there was a substantial
increase in cases of thyroid cancer in those exposed as
children.Radiation exposure from natural sources in a year is about
2,400 microsieverts on average, the U.N. atomic watchdog says.Japan’s education ministry has set a standard allowing up to
1 microsievert per hour of radiation in schools while aiming to
bring it down to about 0.11 microsievert per hour.Areas needing radiation cleanup in Japan could top 2,400
square km, and Japan may have to remove and dispose of enough
radioactive soil to fill 23 baseball stadiums.
Nameless Immigrants and Slaves in Rome, Who Were They? Where Did They Come from?
As the capital of the largest empire at the time, Rome was cosmopolitan. Much is known about the high-profile citizens of the city, but two researchers have just published an article that analyzes remains of slaves and other lower-status people, including women and children, to find out where the immigrants were from and what they experienced in Rome.
All over the world, engineers are beset by a niggling problem: when materials get hot, they expand.
Why is this such an issue? Well, because materials get hot all the time. Think about aeroplanes, buildings, bridges or virtually any kind of technology.
When you expose any of these materials to energy – whether that energy comes from the sun, fuel burning in an engine or from an electric current – they’re going to get bigger, and in some cases that can cause them to fail.
Whether it’s a case of seasonal cracks in the road surface or a short-circuited smart phone, thermal expansion can be the bane of an engineer’s existence.
But thanks to Oxford University scientists, heat-related failure could ultimately become a thing of the past.
Not all materials expand when they get hot. These so-called ‘negative thermal expansion’ - or NTE – materials actually contract when heated.
Tourmaline by Strontium Gender: non-binary Pronouns: they/them/themselves Sexual Orientation: Bisexual (girls and non-binary) Height: 5’ 3” Weapon: Cane/Bludgeon Gem Type: Black Tourmaline Likes: History, cool weather days, visiting new places, studying, upbeat music, being productive Dislikes: Horror, secrets, lightning, having nothing to do, being told to stop talking Hobbies: Reading, going on walks, talking about their research and projects Talents/Skills: Remembering all the stuff they read, mimicking voices Personality: Tourmaline is a curious, inquisitive gem. They have a lot of superstitions and can let their mind run a bit wild at times. Somewhat of a pessimist, Tourmaline is always imagining the worst thing that can happen. They love human history and reading all about it, and are quite enthusiastic on the subject. Tourmaline is a good teacher and enjoys giving impromptu lectures. They are always occupied with some project or another, and tend to misplace things and ramble a bit. Their weapon, the Dragon Head Cane, works like a bludgeon and is made of heat-resistant material.
Strontium is a chemical element with the symbol Sr and the atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic …Get the best quality of memory card, flash cards, usb flash drive, solid state drives and other memory products from Strontium, a global leader in …by W Dean - Related articlesExtensive information on history, uses, occurrence, compounds, and properties of the element.Natural strontium as Osteopenia or Osteoporosis treatment.
Cut the Crap (G. Diablo) This was the original theme song I wrote for my short-lived TCTV show of the same name. I only used it once, however, because it was way too long for a theme song (my version of the Mission: Impossible theme was used for subsequent episodes).
When I wrote this song in 1996, I was thinking more about the prevarications of Clinton and his tendency to side with Wall Street while screwing over the unions, but I couldn’t think of a better song to put up around the growing pile of manure which is the bin Laden bullshit pageant. Fukashima 3 is putting out strontium and we’re wasting our time and attention with this obvious psy-op? Give it up, guys; you know this isn’t going to fly. (No wonder Obeyme tried to take out Anwar al-Awlaki in Yemen with a drone strike; they’re afraid that their former asset in al CIAda may be spilling the beans soon).
One for an object head challenge, the Periodic Table of Elements.
Argon, the Noble Gas; and Mr. (Sr) Strontium.
(Sr, strontium symbol is the abbreviation of mister in Spanish. El Señor Estroncio -please don’t read that on Alan Davies’ Spanish voice-. I used that as a mnemonic thing to remember the symbol and the name. Strontium is the only element symbol I can remember. Well, and the easy ones, oxygen, hydrogen, sodium)