⟪⟪    Rock & mineral iridescence    ⟫⟫

 

Iridescent parts in a large rock (2017-07-31)

 

Iridescent parts in a large rock (2017-07-31)

 

[ direct light || diffuse light ] ⇛ Iridescence in a piece of hematite. (2017-12-22)

 

Iridescence in a piece of aquamarine (2017-12-22)

 

A piece of labradorite showing a special sort of iridescence called labradorescence (2017-12-22)

 

Iridescence in a piece of opal (2017-12-22)

 

Iridescence in a piece of opal (2017-12-22)

 

Iridescence in a piece of opal (2017-12-22)

 

Iridescence in a piece of calcite (2018-01-14)

 

Iridescence in a piece of calcite (2018-01-14)

 

Iridescence in a piece of calcite (2018-01-14)