These specimens are remarkable for their relatively sharp marcasite crystal forms in aesthetic crystal clusters

This piece is a beautiful fragment that weighs 1

It consists of a homogenous impact-melting glass in which are included a multitude of optically and scientifically very interesting clasts- brownish impact-melting

Barite is a type of mineral specimen that features clusters of thin

Adamite typically occur as small

Sapphire | Oval Cut | Midnight Blue | 11x9mm | SO24 unheated sapphire These specimens are remarkable forProduct Type: Sapphire Approx Weight (per piece): 3. 85ct Size: 11x89mm Shape: Oval Cut Color: Blue Clarity: Nice crystal Origin: Madagascar Treatment: Diffusion* *This gemstone was heated and surface diffused to improve its appearance. This is a routine and safe treatment that is accepted worldwide.