“SELWYNITE” – HEATHCOTE VIC
$26.00
For sale is a “Selwynite specimen from Australia. First I have to say the true color of this piece is green to a deepish green. Selwynite is an interesting example of a species, which was once (100 years plus ago) as a unique mineral. To quote Mindat , “Selwynite was originally thought to be a new mineral species and given the name Selwynite (of Ulrich). It was eventually found that this material was rather a very fine grained rock, composed mainly of chromian muscovite (fuchsite) and diaspore. Corundum is known to occur with the fuchsite as massive aggregates and nodules. Copper carbonates can also be found as earthy films and micro crystals in joint planes.
In the late 1980s and early 1990s, after the area had been ploughed, it was possible to get permission from the local farmer to collect from the area where the copper mine was. In more recent times, grape vines have been planted so the ground is no longer turned over.”
Product Description
For sale is a “Selwynite specimen from Australia. First I have to say the true color of this piece is green to a deepish green. Selwynite is an interesting example of a species, which was once (100 years plus ago) as a unique mineral. To quote Mindat , “Selwynite was originally thought to be a new mineral species and given the name Selwynite (of Ulrich). It was eventually found that this material was rather a very fine grained rock, composed mainly of chromian muscovite (fuchsite) and diaspore. Corundum is known to occur with the fuchsite as massive aggregates and nodules. Copper carbonates can also be found as earthy films and micro crystals in joint planes.
In the late 1980s and early 1990s, after the area had been ploughed, it was possible to get permission from the local farmer to collect from the area where the copper mine was. In more recent times, grape vines have been planted so the ground is no longer turned over.”
HEATHCOTE, VIC.
70 x 38 x 32mm.
