Mana Ryuba
@oldoldrocks.bsky.social
PhD Candidate
Precambrian geology & sedimentology
University of Melbourne
🦘🌸
Precambrian geology & sedimentology
University of Melbourne
🦘🌸
Reposted by Mana Ryuba
#MinCup26 Round 1 Match 1:
It's carbonate-vs-carbonate with copper-rich #Azurite against zinc-rich #Smithsonite. Which has your vote?
VOTE: www.mineralcup.org/2026/vote-re...
RESULTS: www.mineralcup.org/2026/vote-re...
It's carbonate-vs-carbonate with copper-rich #Azurite against zinc-rich #Smithsonite. Which has your vote?
VOTE: www.mineralcup.org/2026/vote-re...
RESULTS: www.mineralcup.org/2026/vote-re...
September 1, 2026 at 12:14 AM
#MinCup26 Round 1 Match 1:
It's carbonate-vs-carbonate with copper-rich #Azurite against zinc-rich #Smithsonite. Which has your vote?
VOTE: www.mineralcup.org/2026/vote-re...
RESULTS: www.mineralcup.org/2026/vote-re...
It's carbonate-vs-carbonate with copper-rich #Azurite against zinc-rich #Smithsonite. Which has your vote?
VOTE: www.mineralcup.org/2026/vote-re...
RESULTS: www.mineralcup.org/2026/vote-re...
Reposted by Mana Ryuba
Calcite is a fantastic mineral to demonstrate double refraction! It splits light, creating a strong double image… the distortion is directional
May 31, 2025 at 2:19 AM
Calcite is a fantastic mineral to demonstrate double refraction! It splits light, creating a strong double image… the distortion is directional
First international conference ✅ Last week I was lucky enough to attend the Geobiology Society Conference 2025 in beautiful Banff, Canada! Gave my first lighting talk, met a lot of great people and tasted my first Caesar (made with clamato juice… another first for me)
May 31, 2025 at 9:01 AM
First international conference ✅ Last week I was lucky enough to attend the Geobiology Society Conference 2025 in beautiful Banff, Canada! Gave my first lighting talk, met a lot of great people and tasted my first Caesar (made with clamato juice… another first for me)
Excited to share my first paper, recently published in Precambrian Research! We describe extensive synsedimentary neptunian dykes and breccias in the McArthur Basin, Australia, possibly resulting from an extensional tectonic event ~1640Ma.
Tectonically-induced neptunian dykes and breccias of the Paleoproterozoic Teena Dolomite: Significance to stratiform zinc deposits in the McArthur Basin, Australia
A widespread system of breccias and neptunian dykes is present within the Paleoproterozoic Teena Dolomite of the McArthur Basin. Most breccia types wi…
www.sciencedirect.com
May 31, 2025 at 8:41 AM
Excited to share my first paper, recently published in Precambrian Research! We describe extensive synsedimentary neptunian dykes and breccias in the McArthur Basin, Australia, possibly resulting from an extensional tectonic event ~1640Ma.