Joined: Fri May 12, 2006 11:24 am Posts: 7523 Location: Rome, Italy
Ok folks, this thread was asleep for too much time, let’s give it a shake (all together…)
i’ve recently purchased some nice samples for my collection from a good friend of mine. Among them there’s a little cool TRANSPARENT Rhodonite which has interesting tubular curved inclusions resembling those you can find in some Winza rubies.
Our tireless, “shameless travel addicted gemologist” Vincent Pardieu wrote a nice article about that
Joined: Thu Dec 13, 2007 3:42 pm Posts: 4091 Location: the Netherlands
Did someone say curved crystal inclusions? This peridot from Pakistan or Afghansitan (still not sure) has a whole bush of it!
In his second photoatlas Koivula pictures a Pakistani peridot with straight dark brown to black needles which he has determined to be ludwigite-vonsenite. If that determination goes up for the curved crystals I don't know though.
Joined: Thu Dec 13, 2007 3:42 pm Posts: 4091 Location: the Netherlands
Grabbing an unheated aussie sapphire and wacking it under the scope:
ey... hello there, little crystal inclusion...
hmmm, it's sitting awfully close to the surface (take note that the facet edge is in focus as well), it may be a chip in that facet...
Needing oblique illumination...
Ahhh you poor little bugger, you were cut in half by that big bad cutter, weren't you? (note the the lustre difference). But at least you aren't a chip! Haha... let's zoom in on you...
Hmmm, what would you be? I know you heaven't been heated, you look intact (and i dug your host up myself and didn't bring it to the cooker). Let's change the lighting a bit...
Look at you, you little strong fella, you cracked that sapphire! You must have expanded in volume a bit then, haven't you. That's ok, I do that myself as well nowadays...
Users browsing this forum: No registered users and 8 guests
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum