Calcite is ubiquitous, yes, but you still gotta go with the mineral that Vikings used to navigate, as the “sunstone” that allowed them to detect the direction of the sun
@alexwitze.bsky.social@alexwitze.bsky.social
@alexwitze.bsky.socialCalcite is ubiquitous, yes, but you still gotta go with the mineral that Vikings used to navigate, as the “sunstone” that allowed them to detect the direction of the sun