The Geologic Column

Home
History of the Earth blog
What Things Are Made Of blog
Archive
About
Discovering the Inner Core of the Earth
Commemorating Inge Lehmann’s birthday
 • 
Richard I Gibson
3
H is for Hopper
Not Edward.
 • 
Richard I Gibson
2
Fuchsite
Sermons in Stones
 • 
Richard I Gibson
Most Popular
View all
An unexpectedly linear magnetic anomaly
 • Richard I Gibson
9
Thanks
 • Richard I Gibson
Mineralogy meets Paleontology
 • Richard I Gibson
4
Almadén
 • Richard I Gibson
15
Tectonics happens at all scales
 • Richard I Gibson
5
Negative Crystals
 • Richard I Gibson
6
Tectonics happens at all scales
Examples from the Madison Limestone of Montana
 • 
Richard I Gibson
5
Almadén
The mine, not the wine
 • 
Richard I Gibson
15
Blanca Peak
Eighth highest in the 48 states
 • 
Richard I Gibson
6
Surface textures
More Black Pine Mine crystals
 • 
Richard I Gibson
An unexpectedly linear magnetic anomaly
Near Silver Star, Montana USA
 • 
Richard I Gibson
9
Andalusite
Not from Andalusia
 • 
Richard I Gibson
2
The Yubileinaya Pegmatite
A jubilee of strange minerals
 • 
Richard I Gibson
3
Baku
Half the world's oil in 1900
 • 
Richard I Gibson
4
Negative Crystals
They don’t just have a poor outlook on the world
 • 
Richard I Gibson
6
The Geologic Column
The Geologic Column
Geology newsletter by Richard I. Gibson. Minerals, Tectonics, and "Other."
Recommendations
About Mountains
About Mountains
Ronald Turnbull
Mineral Matters
Mineral Matters
Steve Sorrell
Earthquake Insights
Earthquake Insights
Judith Hubbard & Kyle Bradley
Micromineral Hub: Collecting & Connecting Globally
Micromineral Hub: Collecting & Connecting Globally
Steve Sorrell
My blogs
History of the Earth
Perpetual Calendar
What Things Are Made Of

The Geologic Column

AboutArchiveRecommendationsSitemap
© 2024 Richard I Gibson
Privacy ∙ Terms ∙ Collection notice
Start WritingGet the app
Substack is the home for great culture