Geology, Gypsum
04-October-2024 Friday
Residual fluorescence of gypsum crystal
05-May-2024 Sunday
This is... Plaster. Yes, it can be crystalline!
14-December-2022 Wednesday
Morocco: miners in shorts and what "desert rose" Sting sang about
21-December-2020 Monday
Trump's stone
13-November-2019 Wednesday
Visual Quirks of Selenite
19-March-2019 Tuesday
Cleaved chisel of a zoned gypsum crystal from the Gaurdak deposit (Turkmenistan).
v20240901