#Perovskite#Perovskite#MinCup24

For #WorldCyanotypeDay#histsci She made photograms with algae specimen placed directly on paper treated with photochemicals in 🧵1/n

Tolerant of metamorphic pressure and temps, #Topaz#MinCup24

Pretty blue Kyanite is used in porcelain(though more dishware/plumbing than art) but it is used in jewelry. Points for physics as an index mineral. But topaz wins the art vote with centuries of gems, carving & jewelry. Plus on the physics front we have its use in lens & xray spectroscopy #MinCup24

For the #SciArtSeptember#inventor Hedy Lamarr (1914 – 2000). Born Hedwig Keisler in Vienna, she gained fame after her risqué starring role in Machatý's ‘33 film Ecstasy. Mandl, 1st of 6 husbands, objected & tried unsuccessfully to buy all copies of film. 🧵1/n

Rose-like calcite is found in a variety of locations around the world, including Mexico, Brazil, and the United States. The crystals form around a central point, and they grow outward in a circular or star-shaped pattern. #MinCup2024#Calcite

Calcite Rose: Calcite Flowers

Calcite Rose, also known as Flower Calcite, is a beautiful and unique variety of Calcite that forms in delicate, flower-like clusters. Thes...

For #MinCup24#Calcite#Quartz#Calcite#TeamQuartz#TeamCalcite#Revenge

Down with rhodochrosite! Calcite can be fluorescent. One of the most well known occurrences of fluorescent calcite is in Franklin, New Jersey, USA. It's the bright orange bits in this rock #minerals#MinCup24www.mineralcup.org/2024/vote/r3m3

Seriously I will post a recording of me singing Angel if #Calcite wins!! You can make it happen!

Resharing this because it's #FossilFriday#MinCup2024www.mineralcup.org/2024/vote/r3m3#minerals#museums 🧪⚒️

NHnadwgab.bsky.socialAug 16, 2024 9:13pm

One of my (many) favourite specimens in the NHM London's Mineral Gallery is this "snake stone". The chambers of this Ammonites perarmatus have been replaced by calcite, allowing us to see its internal structure in great detail #FossilFriday 🧪⚒️