For those of you who might be wondering - here are the original photographs that the two Polaroids above are derived from.
These were shot on very expired Ektachrome E100G on an overcast winter day, these are the colours exactly as they came out on the original slides!
You can 'correct' the colour on slides like these but honestly I like them just as they are 💜 If I wanted accurate colour I'd use fresh film!
Purple us my favorite color for fluorite. This specimen fills the bill and then some.
Locality: Yao Gang Xian, Hunan, China.
Photo: super_mineral_
A mighty fallen #ThickTrunkTuesday at UVM's East Woods Natural Area. Most trees in the area lie where they fell, but this one was sawn to provide passage for trail users. I like that we can see the scar where two trunks grew together.
Datolite, CaB(SiO4)(OH) - white crystals
Fluorite, CaF2 - blue crystal
UK39, a member of the hellandite group - the spray of cystals on corner of fluorite
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 4.0 mm
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Cordylite-(Ce), (Na,Ca, )BaCe2(CO3)4(F,O)
Yellow crystal associated with quartz.
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 4.0 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
Chabazite-Na, (Na3K)[Al4Si8O24]·11H2O
Mass of thin plates of chabazite.
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 3.5 mm
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Celestine, Sr(SO4)
Mass of tiny white celestine crystals at center.
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.2 mm
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Catapleiite, Na2Zr(Si3O9)·2H2O
Colorless catapleiite with dark green aegirine.
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 3.6 mm
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Shiny and elusive, featherlight and golden-brown. How would you describe Pele’s hairs? But don’t be fooled. These are strands of volcanic glass & can pose a serious hazard. #HVO #VolcanoWatch: usgs.gov/observatories/hvo/n…
Carletonite, KNa4Ca4Si8O18(CO3)4(F,OH)·H2O
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 3.7 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
Interesting #geology I just learned about along the Salt Lake/Utah County line (and further east toward like Park City) with the remains of stratovolcanoes near Heber City.
https://geology.utah.gov/map-pub/survey-notes/wasatch-volcanoes/
•Cancrisilite, Na7(Si7Al5)O24(CO3)·3H2O
Was cancrinite until cancrisilite was described.
Per communication from László Horvath on 6 June 2007, the only cancrinite at MSH is the yellow. The colorless and pale mauve have been shown to be cancrisilite. Analysis by XRD, EMPA, and IR.
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 3.9 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
A particularly fine specimen of fluorite, made up of several crystals. One of my favorite minerals!
Locality: Bergmännisch Glück Mine, Frohnau, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
Size: 3 × 4.1 × 3.2 cm (1.2 x 1.6 x 2.3 in.)
Photo: © Wittig-Minerals /e-rocks. com
H/T: www.geologypage.com
Burbankite, (Na,Ca)3(Sr,Ba,Ce)3(CO3)5
Yellowish hexagonal prisn of burbankite. The acicular crystals at upper left are aegirine.
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 3.0 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
Mineral collector for past 70 years. Served 21 years in United States Navy and 20 years at Puget Sound Naval Shipyard. Wife and I plus 3 granddaughters are llama owners.