Shape: Briolette Cut
The similar deformations are well known from the Ries crater impact ejecta that occurred in carbonate concretions and in the famous Ries Belemnites both embedded within soft Jurassic claystone
Analysis has shown
Herkimer Diamonds are not diamonds
Spinel Crystal in Marble Host | Red Spinel | 212.7 gr, 1,063.5 ct | Mogok, Myanmar | SO24 Dogtooth Shape: Briolette CutThis is a beautiful Spinel crystal in marble host from Myanmar (Burma). Spinel comes in a variety of colors, including red, pink, blue, purple, orange, and black. It is often mistaken for other gemstones due to its resemblance to rubies and sapphires, especially red spinel, which historically has been confused with ruby. Spinel is found in various regions around the world, including Myanmar (formerly Burma), Sri Lanka, Tanzania, Madagascar, Vietnam,