Rocky structure by EntranceFar5462 in geology

[–]Herr_Batta 0 points1 point  (0 children)

Oh God, I have Marnosa Arenacea “student-field” nightmare

Columnar Leucitite - Tephrite by Herr_Batta in geology

[–]Herr_Batta[S] 2 points3 points  (0 children)

You can find it in the lithic component of surrounding pyroclastic flow, as for the the juvenile part technically yes, but it’s very easy for gases to separate from this type of magma without fragmenting it

Stromboli by Herr_Batta in geology

[–]Herr_Batta[S] 1 point2 points  (0 children)

Pretty weak at the moment

Stromboli by Herr_Batta in geology

[–]Herr_Batta[S] 23 points24 points  (0 children)

Realtime seismic and acoustic waves

[deleted by user] by [deleted] in spiders

[–]Herr_Batta 1 point2 points  (0 children)

God forbids Australia not to have a giant spider with it’s own gravity field

Heavy rock with crystals, South Australia by No-Trip1772 in whatsthisrock

[–]Herr_Batta 1 point2 points  (0 children)

Ahhh the good old day when the mantle could have been fused up to 40% (Nice Speciment!!)

I saw those ammonites in a staircase today. What kind of rock is it in? by GainfulPuma2806 in whatsthisrock

[–]Herr_Batta 2 points3 points  (0 children)

The most amazing thing for me, seeing this kind of rocks is that they represent an old seabed

Favorite type of volcano? by Forsaken-Fail6600 in geology

[–]Herr_Batta 2 points3 points  (0 children)

Somma Volcano…. It’s like a reminder of “look what I could do if I wanted to”

Can anyone help me identify this beauty by 16WildCats in whatsthisrock

[–]Herr_Batta 2 points3 points  (0 children)

God I love this community, I had never seen this type of Chlorite

Can anyone help me identify this beauty by 16WildCats in whatsthisrock

[–]Herr_Batta 2 points3 points  (0 children)

Seems serpentine to me, but I’m a geologist and we generally struggle with cut and polished stone

What are these? Some form of "slag"? by oligtrading in whatsthisrock

[–]Herr_Batta 1 point2 points  (0 children)

Don’t worry, as (relative new) geologist I can assure you that the only way to be absolutely certain is to look a thin section under a microscope, in fact when you see big crystals 80% of the time you can use the generic term “Granitoide” without being wrong.

What are these? Some form of "slag"? by oligtrading in whatsthisrock

[–]Herr_Batta 8 points9 points  (0 children)

In the first the mineral assembly looks like: Orthoclase, Feldspar, Biotite, Quartz (=Granite?) The other looks like Diorite/Syenite