4. A megalithic tomb of Montelirio tholos (Spain) found a 5000 year old dagger (8.5 in.long) formed from rock crystal.
It was found along with 10 arrowheads, 4 blades and core for making weapons, all of which were rock crystal. https://t.co/avrwDOoGLx
— 𝐑𝖎𝖌𝖍𝖙𝖊𝖔𝖚𝐬 𝐌𝖆𝐲𝖆𝖓𝐤 𝐑𝖆𝐣𝖕𝖚𝖙 (@MayankRighteous)
Apr 2, 2025
from http://twitter.com/MayankRighteous
via IFTTT