-
#Uruguay#Amethyst from the Tucson show#MineralMonday pic.twitter.com/vbndGErQl8 -
These are not fossils. These are minerals forming dendritic patterns in quartz.
#mineralmonday pic.twitter.com/9TlkZETf48
Prikaži ovu nit -
A tribute to
@NadWGab , a specimen of a quartz crystal, in another quartz crystal (which was then polished)#mineralmonday pic.twitter.com/ZrRSwmuAcn
Prikaži ovu nit -
#MineralMonday Here is a beautiful blue variety of halite from the New Mexico Museum of Natural History and Science (.@NMMNHS)pic.twitter.com/3b9Kt7jfiF
-
#DYK phosphate in your toothpaste may be from a BLM-ES lease? It's in cleansers and fertilizer too. Mined in Florida since late 1800s, BLM-ES manages leases totaling 900+ acres for sustained yield. 80% of the phosphate used in the U.S. is from Florida!#MineralMonday pic.twitter.com/okaaTrE3ic
-
The focus of this week's
#MineralMonday post is Adamite. A member of the olivenite group, this mineral measures 3.5 on the Mohs hardness scale. Specimen photos are courtesy of and available through@TheArkenstone http://bit.ly/2Un3twA pic.twitter.com/pNhFUMHlym
-
Call for nominations for our annual Reclamation & Sustainable Mineral Development Awards
#MineralMonday There are 5 award categories and Alaskans have won in the past. Who will win
this year?
Nomination details: https://go.usa.gov/xdZNQ
Reclamation before & after pics
pic.twitter.com/iW2cPph3D3
-
Learn all about the interesting minerals that you can find in Virginia! https://www.dmme.virginia.gov/dgmr/minerals.shtml …
#DMME#MineralMonday pic.twitter.com/BT9KZ0R6sc
-


#3February#February3#3Febbraio 2020 Ham or minerals? Rhodochrosite (geodes) - MnCO3 via imgur#mineralmonday#minerals#crystals#gems#minerali#cristalli#gemme#Rhodochrositepic.twitter.com/t5qcSPKN1v
-
Opal, the national gemstone of Australia, isn't technically a
#mineral because it lacks the correct crystalline structure. Instead, this mineraloid has a lattice of silica spheres which gives it a wonderful irridescence!#MineralMonday pic.twitter.com/fAipw8E8ou
-
Happy
#MineralMonday! If you've ever used drywall, plaster, or fertilizer, you can thank the mineral gypsum. Fed by a mineral-rich solution, this specimen grew from the wall of a cave in Chihuahua,
. The “ramshorns” occurred as some crystal strands grew faster than others. pic.twitter.com/32jIfMu2HY
-
What did Earth look like 2.5-4.0 bn yrs ago? Check out my recent talk
@carnegiescience, where we ask: Are High Field Strength Element anomalies a good proxy for Archean subduction? Comments/questions always welcome. https://www.youtube.com/watch?v=Ak8ie2xif5Q …#MineralMonday#thinsectionthursdayPrikaži ovu nit -
And the agates just keep on coming.
#mineralmonday pic.twitter.com/ZlSsakoSdf
-
Over 800 different forms of calcite have been described. This specimen from Strontian, Scotland has hollow colourless crystals perched on the tops of older crystals!
@NtlMuseumsScot#MineralMonday pic.twitter.com/14fA7Erwl9
-
-
My
@collincollege#geology students learned about minerals last week, so they know that my favorite is rosy red rhodochrosite. They can tell you that it's a carbonate, so it should react to HCl, and that these have rhombohedral crystal habit, among other things.#MineralMonday pic.twitter.com/k6EfwgEDEw
-
#MineralMonday and the packing continues, for our humongous collections move. pic.twitter.com/GyKvDt7hEG
-
This is clearly a chunk of Turkish delight
#MineralMonday https://twitter.com/andersonmineral/status/1224317514613653506 …
-
Not your usual Sweet Home Mine rhodochrosite but look at how deep and vibrant the reddish-pink is. It’s very fun to come across these awesome
#museum specimens when you are working in the collections.#MineralMonday#CoolCuriositiespic.twitter.com/PKwB7ldISI
Čini se da učitavanje traje već neko vrijeme.
Twitter je možda preopterećen ili ima kratkotrajnih poteškoća u radu. Pokušajte ponovno ili potražite dodatne informacije u odjeljku Status Twittera.