#agates — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #agates, aggregated by home.social.
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Métropole de Grenoble. AGATES, nouveau groupe des petites communes de gauche
Gilles Strappazzon, Catherine Troton, Florent Cholas et Gildas Bouffaud, quatre des six élus fondateurs d’AGATES, ont présenté le…
#Grenoble #FR #France #Actu #News #Europe #EU #actu #Actualités #Agates #Auvergne-Rhône-Alpes #CatherineTroton #europe #FlorentCholat #gauche #GildasBouffaud #GillesStrappazzon #Métropole #Républiquefrançaise
https://www.europesays.com/fr/926660/ -
https://www.europesays.com/fr/926660/ Métropole de Grenoble. AGATES, nouveau groupe des petites communes de gauche #actu #Actualités #Agates #AuvergneRhôneAlpes #CatherineTroton #EU #europe #FlorentCholat #FR #France #gauche #GildasBouffaud #GillesStrappazzon #Grenoble #Métropole #News #RépubliqueFrançaise
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Beautiful lavender and salmon banding flows in irregular waves through this polished half. The upper cavity shows white chalcedony with some rough areas, while the lower section displays classic concentric bands in soft purples and peachy tones. Clean polish showcases the translucent quality well. 🔮 #agates #minerals #geology
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Beautiful concentric banding flows from pale amber outer zones through honey and orange into that deep red-orange core. The bands follow the natural cavity shape perfectly, with clean parallel lines. Nice druzy quartz rim and that floating fragment adds character 🔥
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Beautiful concentric banding in lavender, cream, and golden yellow flows around a central druzy-lined cavity. The soft, irregular bands create nice contrast against the darker host rock sections. Clean polish shows off the translucent chalcedony layers well 💜
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Nice Coyamito halve with that classic burnt-orange rind and clean interior banding. The white and brown bands flow in tight concentric patterns around the center, with some wider zones mixing in. Good polish brings out the translucency in the lighter bands. 🧡
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Nice Moctezuma half with warm caramel outer bands transitioning to soft pink and ivory toward the center. The central cavity shows good druzy quartz lining with clean, concentric banding throughout. Polish quality is solid with natural edge intact. 🔶
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Wild honey-colored tubes with lavender rims create a complex pseudomorphic structure - looks like ancient coral or tube formations replaced by agate. The clean white druzy quartz interior contrasts beautifully with the rich brown and purple banding throughout. Exceptional preservation of the original tubular geometry 🔥 #agates #pseudomorph #geology
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Beautiful lavender and white banding flows in tight concentric patterns from the pale core outward. The polished face reveals excellent contrast between the soft purple tones and creamy white layers, with some darker gray zones adding depth. Clean cut showcases the natural fortification patterns perfectly 💜
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Agate banding forms through rhythmic silica deposition in volcanic cavities, with each band representing a distinct chemical environment. Iron oxides create the reds and yellows, while manganese produces purples and pinks. The characteristic concentric patterns develop as silica-rich groundwater repeatedly fills and partially empties the void space over thousands of years. #agates #minerals #geology
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Mudlarking at Monte Lake (the Canadian version: agate digging in lakeside cliffs!)
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The microcrystalline quartz bands in this agate formed through rhythmic silica deposition in volcanic vesicles during the Oligocene epoch. The distinct banding patterns reveal fluctuating groundwater chemistry over thousands of years. These specimens show excellent translucency and sharp color transitions between bands, indicating stable formation conditions in ancient volcanic host rock. 🔬 #agates #minerals #geology
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Microcrystalline quartz formation in volcanic vesicles creates these translucent nodules. The concentric banding develops as silica-rich solutions deposit successive layers over thousands of years. Look for rounded, waxy-textured stones along shorelines and in weathered basalt flows - they often weather out as harder nodules. #agates #minerals #geology
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The precision cutting and grinding process that transforms rough agate nodules into perfect spheres reveals the internal banding patterns formed by successive silica deposition cycles. Each band represents a different chemical environment during formation, creating the concentric patterns we see. The spherical shape allows 360-degree viewing of the agate's complete geological story. #agates #minerals #geology
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This Laguna agate half showcases the classic fortification banding that forms when silica-rich solutions precipitate in rhythmic cycles within volcanic vesicles. The soft greens likely result from trace iron compounds, while the warm ochres and siennas indicate varying oxidation states during formation. The feathered quality in the banding suggests fluctuating flow conditions as the microcrystalline quartz deposited over thousands of years in the host rhyolite. #agates #minerals #geology
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Agate's banding forms through rhythmic silica deposition in volcanic vesicles, with each layer reflecting changes in groundwater chemistry and temperature. Iron oxides create the warm reds and yellows, while manganese produces purples and pinks. The finest bands can be measured in micrometers, representing thousands of years of patient geological processes. #agates #minerals #geology
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Another gorgeous day on the Yellowstone!
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Lace agate & tiny fossils in fossiliferous chalcedony. #FossilFriday #agates
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#Today is the first day in 3 weeks my #rocktumbler isn’t going. This batch needs some friends before moving into the last grit stage. Quite the 🌈 for an “odds & ends” round!
All #agates from near #BendOregon limb-cast fields, mix of #jasper #PetrifiedWood and pretty rocks from there and the #PacificOcean #OregonCoast
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Ground art, and a hilarious hang-wringing sign in a sea of corporate concrete
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Mudlarking at Monte Lake (the Canadian version: agate digging in lakeside cliffs!)
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Mudlarking at Monte Lake (the Canadian version: agate digging in lakeside cliffs!)
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Mudlarking at Monte Lake (the Canadian version: agate digging in lakeside cliffs!)
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Mudlarking at Monte Lake (the Canadian version: agate digging in lakeside cliffs!)
