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To: MineralMan

When the quartz (I'm guessing) crystallized out of the molten mineral flux, it did so so rapidally that it created a local vacuum zone that the titanium-mix bubbled into -- I wonder if those globules are geode-like.


100 posted on 02/12/2006 7:25:27 AM PST by bvw
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To: bvw

"When the quartz (I'm guessing) crystallized out of the molten mineral flux, it did so so rapidally that it created a local vacuum zone that the titanium-mix bubbled into -- I wonder if those globules are geode-like."

Probably not. That specimen is from Mt. Ste. Hilaire. The typical pattern there was for the quartz to form, then the secondary minerals in a different time period. Lots of zeolites there, which crystallize from solution, but nowhere near the time that the quartz does.

The globular habit is pretty common, and is usually made up of radiating acicular crystals. I haven't seen this mineral, though...at least not knowingly. It's possible there has been some on a Hilaire specimen I've had, but there are always unidentified minerals on those specimens.


101 posted on 02/12/2006 7:31:16 AM PST by MineralMan (godless atheist)
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