Rock pic posted by Perseverance rover today. Location: Mars! See comments for link to tweet3yr ⋅ alexipd99 ⋅ r/whatsthisrock
Petrographic thin section in crossed polarized light (a really thin rock slice)4yr ⋅ alexipd99 ⋅ r/MicroPorn
My uncle was a limo driver in Ottawa Canada and was driving a Soviet minister and was gifted these pins in 1990. If you know anything please share4yr ⋅ alexipd99 ⋅ r/Militariacollecting
Petrographic thin section in cross polarized light and with gypsum plate inserted (a very thinly sliced rock under a microscope)4yr ⋅ alexipd99 ⋅ r/interestingasfuck
A limo driver in Ottawa Canada was driving a Soviet minister during a state visit in 1990 I think and was gifted these pins. If you know anything about them please share.4yr ⋅ alexipd99 ⋅ r/whatisthisthing