Intergrowth texture?
7th Feb 2018 21:02 UTCKyle Beucke 🌟
Here are two backscattered images of goldfieldite (or its oxidation products) (=dark gray) and a bismuth-selenium mineral (lightest gray, almost white = unoxidized and slightly darker gray=oxidized).
I am trying to decide if this represents a contemporaneous intergrowth, or if the bismuth-selenium mineral came in later than the goldfieldite. Both images show "islands" of goldfieldite in the bismuth-selenium phase, which seems to suggest that the bismuth-selenium phase is later.
Another thing: Do bismuth minerals weather more rapidly (in general) than copper sulfosalts?
Thank you,
Kyle
