any suggestions of what might be?

[funkycrystals]

Hi to all!
Found these brown crystals and I'd like to ask if there's any suggestion of what might be.

The crystals are hexagon tubes...

[guefz]

HI,

the locality where you found these crystals would be helpful...

Günter

[Jochen1Knochen]

Hallo!
..?... perimorph nach ...?.....
(Quarz?)... perimorph nach.... (Cerrusit?)
Gruß Jens

[smoeller]

Hello,

Maybe quartz or opal pseudomorphs after aragonite. The colourless droplets are opal var. hyalite.

Regards,
Sebastian

[funkycrystals]

The location that found was in an abandoned chromite mine, prospecting for Uvarovite, that day. The crystals are in hexagonal prolonged formation, insoluble in HCl!!!.
I couldn't spot any solid crystals looking like Cerrusite. Crocoite also was rejected, despite the fact they were found in a chromite mine...

Here are 2 more pics of the crystals...

[smoeller]

Hello,

I meant there is no aragonite left, its all quartz or opal now, replacing aragonite. That's what pseudomorph means.

Regards,
Sebastian

[funkycrystals]

Many thanks to all for replying!