Raw optical calcite pendant (Iceland spar) Brazil AA

PEN-CALCOPT-01
Origin: Brazil
Grade: AA

Dimensions:
About 20-30mm

Weight:
Between 3 and 5g

Origin:
Brazil (PANTANAL)

Grade:
AA = very high

Pendant made of raw optical calcite (Iceland Spar) from Brazil, approximately 20-30mm
Sold individually.
Colors and shapes may vary from stone to stone.

Iceland spar is a transparent variety of calcite.
It is also called optical calcite because of its double refraction specificity.
According to some researchers, it was a crystal of this type that could have served as a sunstone for the Vikings.