this post was submitted on 18 Jun 2024
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[–] VelvetGentleman@lemmy.world 0 points 4 months ago (2 children)

Obsidian forms when lava cools very rapidly, limiting crystal growth. The lava pictured above most likely cooled slowly.

[–] Sparky@lemmy.blahaj.zone 0 points 4 months ago (1 children)

Cool. I guess I used lava and obsidian as synonyms.

[–] MonkderDritte@feddit.de 0 points 4 months ago

That's no lava, lava is fluid, magma too.

[–] MonkderDritte@feddit.de 0 points 4 months ago (1 children)
[–] RizzRustbolt@lemmy.world 0 points 4 months ago (1 children)
[–] MonkderDritte@feddit.de 0 points 4 months ago* (last edited 4 months ago)

Is silicate glass.