#Mineral
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Iddingsite
Iddingsite was first described in the 19th century. Its name was given by Andrew Cowper Lawson in 1893 in honor of Joseph Paxson Iddings, a geologist and petrologist. Lawson described iddingsite as soft, brittle, with well developed cleavage in hand sample. Under optical microscope, it shows colors varying from brown to light yellow with pronounced pleochroism in transversal position to their cleavage under optical microscope. They are a common alteration of olivine in basic volcanism (Source: Alteration of olivine in volcanic rocks from Trindade Island, South Atlantic. Mateus et al., 2018).
In this thin section, it is possible to see an olivine with iddingsite alteration (red-colored) from a kimberlite. In my undergraduate research project, I am studying a sample of a volcanic bomb with olivines with iddingsite alteration from Trindade Island.
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Aquamarine with Morganite from Minas Gerais, Brazil. By dusted77 on Instagram.
#aquamarine#morganite#mineral#minerals#exhibit#exhibits#minas gerais#brazil#munich#germany#geology#nature
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fairburn agate
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jade corn ornament
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Fluorite, Red Cloud Fluorite Mine, New Mexico, photo by Tiny Minerals
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Vivianite | Tomokoni Mine, Colavi, Machacamarca, Cornelio Saavedra Province, Potosi Department, Bolivia
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Awesome fiery red rhodochrosite crystals on manganese matrix from N鈥楥hwaning mine, Kuruman, South Africa.
Image by: Anton_watzl_minerals
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Studio Brasch - Aikebana N掳170
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"Hematite Iron Rose" by Juan - Metallic petals form intricate layers, capturing the mineral's natural elegance.
#macro#white#metallic luster#geology#sierra alhamilla#almer铆a#andalusia#spain#juan#hematite#natural formation#mineral#gray#crystal structure#black#photography
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I'm ORBsessed. Blue, 8th vein ocean jasper palm stone. Bonus pic of all my ocean jasper spheres inside a box.

#mineralogy#geology#Rock#Mineral#Crystal#OceanJasper#Orbicular#blue8thvein#oceanjasperspheres#oceanjasperveins#Madagascar#collection#orb#orbs
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Opal in petrified wood, Natural History Museum of Los Angeles, Gem and Mineral Hall Collection. By Stan Celestian on Flickr. (Hi-Res)
#opal#opals#opalised#opalized#petrified#wood#opalised wood#opalized wood#petrified wood#fossil#fossils#fossilised#fossilized#fossilised wood#fossilized wood#tree#trees#tree trunk#tree trunks#mineral#minerals#museum#museums#natural history museum#nhmla#los angeles#natural history museum of los angeles#geology#stan celestian
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