Iridescent Goethite - Mineral aligator Rubies belong to the same

Rubies belong to the same family as sapphires

Description: These cabs come in various free-forms

5cmApproximate weight for 1 piece: 100g

Description: These natural

5mmApproximate weight of 1 piece: 7g

Iridescent Goethite - Mineral aligator Rubies belong to the sameMined from: Tharsis, Spain Description: Iridescent goethite from Tharsis, Spain, is a variety of the mineral goethite (FeO(OH)) that exhibits a shimmering, rainbow like play of colors on its surface and a lovely botryoidal composition. This iridescence is typically caused by the thin film interference of light within microscopic layers or inclusions on the mineral's surface. The region of Spain from which these specimens are sourced is known for its