Large rounded grains of garnet surrounded by masses of muscovite mica and biotite mica. Also found are small, brown oval-shaped grains of tourmaline. By Larry Tuttle, U Maine Farmington. Send images and short caption to akoziol1 at udayton dot edu. #thinsectionthursday
Large rounded grains of garnet surrounded by masses of muscovite mica and biotite mica. Also found are small, brown oval-shaped grains of tourmaline. By Larry Tuttle, U Maine Farmington. Send images and short caption to akoziol1 at udayton dot edu. #thinsectionthursday
This photo was taken in 2003 from a travelling collection of thin sections sponsored by NASA […]
[Original post on fosstodon.org]
This photo was taken in 2003 from a travelling collection of thin sections sponsored by NASA […]
[Original post on fosstodon.org]
But we need your help. goodlawproject.org/crowdfunder/...
But we need your help. goodlawproject.org/crowdfunder/...
📍 East side of Mountsorrel Quarry
ℹ️ "Quartz dolerite", Dr Hallimond
©️ British Geological Survey
📍 East side of Mountsorrel Quarry
ℹ️ "Quartz dolerite", Dr Hallimond
©️ British Geological Survey
c.org/jzkHKh9byy
c.org/jzkHKh9byy
Pindari Valley, Kumaon Himalaya.
November 2025.
#FridayFold
Pindari Valley, Kumaon Himalaya.
November 2025.
#FridayFold
This megacryst of orthopyroxene shows high relief and faint pleochroism in PPL. Cross the polars, & the crystal comes alive with abundant thin bands of exsolution lamellae of clinopyroxene. Contributed by Matt Kohn. #thinsectionthursday
This megacryst of orthopyroxene shows high relief and faint pleochroism in PPL. Cross the polars, & the crystal comes alive with abundant thin bands of exsolution lamellae of clinopyroxene. Contributed by Matt Kohn. #thinsectionthursday
Will it be native copper or molybdenite? You’re running out of time to choose!
Vote:
Will it be native copper or molybdenite? You’re running out of time to choose!
Vote:
Twiddling your thumbs waiting? Give us feedback on our first mini-cup!
Twiddling your thumbs waiting? Give us feedback on our first mini-cup!
Place your vote to decide the IMA Ore Mineral of the Year! Are you a fan of the classic native metal #Copper, or the slippery silver #Molybdenite that evaded being pinned down for so long?
Vote:
Place your vote to decide the IMA Ore Mineral of the Year! Are you a fan of the classic native metal #Copper, or the slippery silver #Molybdenite that evaded being pinned down for so long?
Vote:
#OreCup
#OreCup
#OreCup #sulfides #sulfide #mineral #mineralogy #mineralexpert
#OreCup #sulfides #sulfide #mineral #mineralogy #mineralexpert
Find out how underwater explosions impact our planet at the WHOI Ocean Learning Hub, a free resource that's perfect for educators, students, and the ocean-curious:
go.whoi.edu/volcano
📸 via ROV Jason 2009 © #WHOI
Find out how underwater explosions impact our planet at the WHOI Ocean Learning Hub, a free resource that's perfect for educators, students, and the ocean-curious:
go.whoi.edu/volcano
📸 via ROV Jason 2009 © #WHOI
vote: www.mineralcup.org/vote-results...
results:
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Fennefoss Museum in Evje specimen
#OreCup #mineral #mineralogy #mineralexpert #titanium
Fennefoss Museum in Evje specimen
#OreCup #mineral #mineralogy #mineralexpert #titanium
eos.org/articles/the...
eos.org/articles/the...
buff.ly/ez1xDOJ
buff.ly/ez1xDOJ
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I could be wrong, but right now I feel titanium is the more critical material for a cleaner future.
Lithium is a temporary bridge — or should be a temporary bridge — to better, cleaner, sustainable successors.
Huge negative environmental impact for lithium mining.
#OreCup25
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