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Identity HelpApatite from ontario?!?

23rd Apr 2017 05:04 UTCMatt Neuzil Expert

Doesn't look like any apatite I have seen from ontario. It's not mine so I cannot give many details or properties of it. I am curious if anybody recognizes the matrix and crystals.

It honestly looks like some kind of volcanic rock with white phenocrysts and the obvious large greenish crystals. Perhaps are vesuvianite or something?

23rd Apr 2017 05:31 UTCMatt Neuzil Expert

Perhaps 'augite' ?

23rd Apr 2017 05:36 UTCPhil M. Belley Expert

Looks closer to monoclinic than tetragonal but it's not super clear from the photos. Augite in volcanic rock would be believable. Any potential IDs on the white parts? Calcite? Zeolite?

23rd Apr 2017 06:01 UTCMatt Neuzil Expert

No, honestly it's for sale online. I am not curious on buying it as it looks mislabelled. But I am curious as to what the well formed crystals could be and possibly where they could be from so I could acquire a proper piece with labels.

23rd Apr 2017 06:03 UTCMatt Neuzil Expert

I was hoping with such a large online community that someone familliar with such pieces could recognize it. After looking thru italy as it reminded me of some ejected block material or something, I think it looks more like augite.

23rd Apr 2017 07:51 UTCKir Wlsow

This specimen is actually from Russia - the mineral name is Wiluite https://www.mindat.org/min-7367.html and it is from the type locality in Eastern Siberia (Akhtaragda river https://www.mindat.org/loc-2758.html). White triangular stuff is Grossular-Hibschite Series (Var: Achtaragdite) https://www.mindat.org/min-17.html .

23rd Apr 2017 07:58 UTCFlorian Tauber

It´s an augite. some of the white minerals are feldspars.For me it is a Porhyry with nice phenocrysts

23rd Apr 2017 10:56 UTCReiner Mielke Expert

Looks like wiluite to me as well.

23rd Apr 2017 18:50 UTCMatt Neuzil Expert

Ok, I see some wiluite that has same matrix now. I wasn't far off with a vesuvianite guess