Doug Merson @Micromineral@qoto.org
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.
Joined Nov 2022
Brookite, TiO2
Cluster of several black brookite crystals.
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 = 1.1 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
Birnessite, (Na,Ca,K)0.6(Mn4+,Mn3+)2O4·1.5H2O
Ranciéite, (Ca,Mn2+)0.2(Mn4+,Mn3+)O2·0.6H2O
Originally described as birnessite, new research showed to be a mixture with ranciéite.
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
Annite, KFe2+3(AlSi3O10)(OH)2
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 = 1.6 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
Berthierine, (Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4
Ancylite-(Ce), CeSr(CO3)2(OH)·H2O
Two hexagonal pale green berthierine crystals plus 2 cololess ancylite-*Ce)_ crystals.
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 = 1.6 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology #earthsciences #mineral collecting
Doug Merson
boosted
A very good explanation of the Volcanic Explosivity Index, the tool that volcanologists and other scientists use to measure and compare explosive volcanic eruptions.
#volcanoes #eruptions #measurement #VolcanicExplosivityIndex #geology
Doug Merson
boosted
Stumbled across a nice August '22 mosaic of three 400mm images of Death Valley - stitched 'em and added a label version ( https://dougellison.smugmug.com/Projects/ISS-Mosaics/i-tG8Z7Sq/A )
Doug Merson
boosted
Some #BushCapital #geology with a view from Shepherd’s Lookout near Belconnen, Canberra, overlooking the Murrumbidgee River. Early Silurian Walker Volcanics (dacitic ignimbrite) in the foreground forming the cliff.
Bavenite, Ca4Be2+xAl2-xSi9O26-x(OH)2+x (x = 0 to 1)
Pale yellow to white bavenite plates.
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
Barylite, BaBe2Si2O7
Two barylite crystals
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 = 1.0 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology
Baryte, Ba(SO4)
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 = 0.8 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology
Astrophyllite, K2NaFe2+7Ti2(Si4O12)2O2(OH)4F - the dark to light brown crustals.
Sphalerite, ZnS - the pale pink crystal just above 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 = 4.0 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology
Astrophyllite, K2NaFe2+7Ti2(Si4O12)2O2(OH)4F
spray of thin light brown crystals.
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 = 2.0 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology
Ashcroftine-(Y), K5Na5Y12Si28O70(OH)2(CO3)8·8H2O as fine fibers.
Aegirine, NaFe3+Si2O6 - the dark green crystals
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 = 3.2 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology
Arsenopyrite, FeAsSPoudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 0.9 mm
#minerals #mineralogy #mineralcollecting #crystals #Geology
Ancylite-(Ce), CeSr(CO3)2(OH)·H2O
Very pale pink crystals on blades of albite.
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
#minerals #mineralogy #mineralcollecting #crystals #Geology
Andradite, Ca3Fe3+2(SiO4)3
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
#minerals #mineralogy #mineralcollecting #crystals #Geology
Annite, KFe2+3(AlSi3O10)(OH)2
Pyrite, FeS2
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
Arfvedsonite, NaNa2(Fe2+4Fe3+)Si8O22(OH)2
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
Anatase, TiO2
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.8 mm
Anatase, TiO2
Poudrette quarry (De-Mix quarry; Demix quarry; Uni-Mix quarry; Carrière Mont Saint-Hilaire; MSH), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
FOV = 1.3 mm
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.
Joined Nov 2022
