Large Black Spinel Crystal Mass 427ct Tourmaline but were actually cleaved to

but were actually cleaved to make them into this shape

This piece is very fine cutting/carving material that should have a good yield

That is what makes this source(Zacatecas

This piece is an very epic looking crystal

Deep blue azurite crystals span the face of this specimen from Laos

Large Black Spinel Crystal Mass 427ct Tourmaline but were actually cleaved toThis is an amazing and large black spinel crystal mass. Any direction you look at it shows a interesting and detailed surface of one of the many crystals that are grown together. It looks best when you catch the light just right on the crystal faces as they are shown in the photos. The mass itself is black in color, but when you hit it with the right light angle it shows all the full details of the crystals. GIT Cert is included with this unique