The green gypsum from Pernatty Lagoon in South Australia is a similar green to your specimen Richard. Even though it is in a copper producing area (Mount Gunson mines), the green is due to iron.
They're certainly very pretty and excite the imagination. It's crazy that someone thought to throw a ton of those into a furnace to extract only the silver.
The green gypsum from Pernatty Lagoon in South Australia is a similar green to your specimen Richard. Even though it is in a copper producing area (Mount Gunson mines), the green is due to iron.
Oh that's good to know! I have a specimen, but I thought it was green from copper. Thanks for the info!
They're certainly very pretty and excite the imagination. It's crazy that someone thought to throw a ton of those into a furnace to extract only the silver.