Friday, May 2, 2008

Weekend Fun - guessing the mineral

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My bookshelf collapsed yesterday morning. In the debris I found these nice minerals that I collected a few years ago very close to the actual type-locality for this mineral. There were nice vein-like bodies of this mineral also accompanied by a number of other minerals. It was a bit of a risk collecting next to a big collaps funnel of old mine workings. So a piece of advise for all your mineral collecting fans - be careful, never collect alone, always have your cellphones with you!



Anyways. What do you see on the above image? Pencil for scale...

5 comments :

Silver Fox said...

Ah - maybe tremolite, type locality in Switzerland?

limonit said...

Hm. Could it be Muscovite + Quartz? It was mined for in the 19. century.
Type locality would be Moscow, then.

ScienceWoman said...

Phlogopite? But I haven't a clue where the type locality would be.

Lost Geologist said...

i will give some clues: the mineral is named exactly like the type locality. yes there is quartz in the samples on the foto. the left pieces however, is completely made from the wanted mineral.

the type locality is in germany but switzerland is rather far away from it.

i could comment more but that would make it too easy. i'll see what you can come up with by sunday.

Lost Geologist said...

p.s. well...without the "-ite" exactly like the type locality.