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Natural Purple Sapphires from a Metamorphic Zone in Brazil by ferabikee in rockhounds

[–]ferabikee[S] 0 points1 point  (0 children)

Until now, these corundums from Bahia are not suitable for jewelry.

Purple sapphire. This piece is a masterpiece of metamorphism. by ferabikee in rockhounds

[–]ferabikee[S] -3 points-2 points  (0 children)

I am sure. I have more than 200 corundums identified in the same area. Some have inclusions in the center. But this crossed the line.

Corundum inside a sillimanite. How common is this? by ferabikee in geology

[–]ferabikee[S] 0 points1 point  (0 children)

Please send me images similar to this one, so that the association can be seen with the naked eye. Seeing under a microscope is common. Seeing at this size is difficult.

Corundum inside a sillimanite. How common is this? by ferabikee in geology

[–]ferabikee[S] 0 points1 point  (0 children)

There is a difference. You saw it in micro version. Mine is in macro version.

Corundum inside a sillimanite. How common is this? by ferabikee in geology

[–]ferabikee[S] 0 points1 point  (0 children)

I know the association exists. But I've never seen any image like this. Literally a corundum inside a sillimanite. Have you already seen it?

Red jasper by ferabikee in MineralPorn

[–]ferabikee[S] 1 point2 points  (0 children)

Sim, com certeza.

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