Lmst

Our curator @AdamStuartSmith is picking out objects for our next permanent gallery, which may include a small section on UV light. These reference snaps show how a specimen of dolomite+fluorite+galena looks different under normal and UV light. The fluorite glows spectacularly under UV light.

#MineralMonday #geology #NottNatHist #museum #fluorite #dolomite #earth #minerals #galena

A specimen made up of a mixture of mineralss with two labels... it's light brown with white crystals...

The same specimen under UV light - the crystals glow purple, the rest is black.

Today's practice stack-- Apophyllite crystal cluster

Poona, India, purchased early 1990s

#MineralMonday #Fotomontag #PhotoMonday #Crystal #Rock #Collection #Photograph #Nikon #AffinityPhoto2

A crystal cluster of slightly brighter clarity but somewhat similar in "look" to Rock Quartz crystal is posed on deep blue velveteen. If you look closely, you can find tiny rainbows trapped in the crystals. This is Apophyllite, a relatively unknown crystal popularized in the New Age as a calming and meditation stone. Poona, India. Photo by Peachfront of my own specimen.

A random focus stack i did yesterday, i've only done a few focus stacks (mostly astro focus stacks of Comet Atlas) so i need to practice to make sure i know all the steps before my next workshop...

there were 11 photos in this stack, and i think it still has issues, but sooner or later i've got to figure out how to photograph rocks since i have a huge collection 🤣

#MineralMonday #Fotomontag #PhotoMonday #Photography #Crystal #Quartz #RockCollection #Rockhound #FocusStack #AffinityPhoto2

A macro photo of some details of a rock crystal cluster with several visible sharp crystal points, the one in the center has a tiny rainbow in it if you squint. The background is dark blue velveteen. This is one of many I collected in the Hot Springs area of Arkansas in the early 1990s. Photo by Peachfront.

Un bien joli site sur les minéraux :
https://www.rock-of-science.com
#histnat #MineralMonday

April 14, 1895, died #OTD James Dwight Dana. American geologist & zoologist, best known to students thanks to his books "System of Mineralogy" & "Manual of Mineralogy."
His manual is still a standard college textbook in the U.S. and has been continuously revised and updated by a succession of editors.
Dana's "System" proposed to classify minerals based on their chemistry, beginning with native elements and ending with complex silicates 💎
#MineralMonday

https://en.wikipedia.org/wiki/James_Dwight_Dana

#MineralMonday
Calcit xx
Ich habe ihn aus einer Sammlungsauflösung. Ursprünglich stammt er aber aus Shangbao, Hunan in China.
Schweren Herzens möchte ich den wunderschönen Calciten weiterziehen lassen, deshalb findest du ihn ab jetzt im #Hollenkraut Shop.

Das Bild zeigt ein Stück Calcit, das in einer Hand gehalten wird. Der Calcit hat eine weiße bis leicht graue Farbe und besteht aus mehreren kristallinen Strukturen, die in verschiedene Richtungen zeigen. Im Hintergrund sind die grünen Blätter einer Monstera zu erkennen.

#MineralMonday 😇

Ein großer Brocken Rauchquarz mit Mikroklin-Kristall an der Seite. Er war durch eine Sammlerauflösung zu mir kommen, stammt aber ursprünglich aus Mt. Malosa, Zomba in Malawi.

Da ich durch einen bevorstehenden Umzug gerade ein bisschen meine eigene Mineraliensammlung verkleinere, ist der schöne Rauchquarz seit eben im Hollenkraut-Shop. Die nächsten Monate kommen bestimmt immer mal wieder welche dazu.

#Hollenkraut #MineralMonday #MineralienMontag

Das Bild zeigt eine Hand, die einen großen, dunkel gefärbten Kristall mit gold-braunen Einschlüssen hält. Es handelt sich um einen Rauchquarz. Auf der Hand sind Tattoos zu sehen. Im Hintergrund befindet sich eine grüne Pflanze mit großen Blättern sowie ein teilweise sichtbares Skelettmodell.

Happy #MineralMonday! Here's a small black quartz crystal (~ 2mm), some malachite - chalkopyrite with more colourless quartz and other unidentified stuff - from Hagen, Germany. ⚒️ 🧪 #Geology 📷 Fujifilm X-T4 | 7Artisans 60mm D2.8 II + Raynox DCR-250

Macro photo of a piece of rock I am holding in my hand. A mix of some greenish, black, beige, translucent minerals

I met a traveller from an antique land... 💎
February 24, 2014, a 4.404 billion-year-old zircon crystal from Western Australia’s Jack Hills region is announced to be the oldest known mineral on Earth (with Earth being ~4.51 billion years old) #MineralMonday

Saussurite was named after him in 1806 by his son Nicolas T. de Saussure. However, saussurite is not single mineral but a mineral aggregate which is formed as an alteration product of plagioclase feldspar #MineralMonday
📷 by https://alexstrekeisen.it/pluto/saussurite.php
Image

I'm obsessed with this huge quartz in the Naturkundemuseum Dortmund. ⚒️💎 #MineralMonday

Photo of a cluster of pinkish quartz crystals which is over 50 cm tall and white. On display behind glasses and illuminated from all sides

January 27, 1756, birthday of Austrian musician & composer Wolfgang Amadeus #Mozart.
The mineral Mozartite - a rare metamorphic manganese silicate - is dedicated to Mozart as it was described in the Mozart-year 2006 💎#MineralMonday

https://mindat.org/min-2799.html

Zum heutigen #mineralmonday habe ich das Stück hier aus meiner Sammlung ausgewählt. :D Es ist ein Amethyst auf mehreren Bergkristallen.
Ich habe ihn Second Hand gekauft, aber ganz ursprünglich kommt er wohl aus Malaimbandy, Miandravazo in Madagaskar.

#mineraliensammlung #mineralien #steinesammeln #autisticwitch #steineundmineralien

Ein Foto meiner rechter Hand, die einen Amethysten mit lila Spitze hält. Der Amethyst fußt auf mehreren weißen Bergkristallen. Im Hintergrund des Fotos sind hauptsächlich Pflanzen zu sehen.

#MineralMonday 💎 In 1774, self-taught cartographers Peter Anich and Blasius Hueber published the first map of Tyrol, including a signature showing an "alpine glacier where crystals are found."

Quartz crystals in an alpine kluft found a few years ago at Stampfl Ferner, approximately in the same area.

#MineralMonday 💎 December 22, 1719, the Italian count Von Piazza obtains the permit to search and extract "jasper and agate" from the lava rocks outcropping near the small Tyrolean town of Teis. These geodes are still known today as "Teiser Kugeln" meaning "Teis Spheres"💎

December 16, 1631, San Gennaro, patron of Naples, miraculously stops the lava-flows coming from Mount Vesuvius 🌋

As a sign of divine power, in the lava appeared also cross-shaped augite crystals 💎 #MineralMonday

#MineralMonday 💎 December 9, 2017, "#StarWars: The Last Jedi" premieres, featuring in one famous battle scene what seems to be a planet covered by white sodium chloride known on Earth as halite & red potassium chloride also known as sylvite.

http://bressan-geoconsult.eu/the-geology-of-star-wars/

#MineralMonday Calcite scalenohedra from a very rare find a few years ago in the Laaser marble, Tyrol. Once considered a cheap alternative to the famous Carrara marble, the Laaser/Lasa marble has been/is used in buildings worldwide 💎
Largest crystal face length 4cm.

#MineralMonday Characteristic dark-green epidote on fibrous chrysotile from the Knappenwand, Hohe Tauern, Austria. This historic site discovered in 1865 & (mostly) active between 1909 to 1922 provided some of the best examples of epidote crystals worldwide 💎
Largest crystal is 3cm in length.

#MineralMonday

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