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The Brookites measure up to 7 mm long and are notably free-standing (not lying flat) on the matrix
Robert Stoufer collection
and one corner of the twin has a slight “rub”
matrix specimens are not terribly common
almost skeletal appearance
Hopeite (!!) with Phosphophyllite (first known specimens from South America!) Chlorite The Brookites measure up toOne of the most exciting and yet incredibly limited discoveries for Bolivian minerals. Bolivia is well known for its phosphate minerals, but Hopeite (despite its fairly simple chemistry) has never been reported. This is not only a first time find for Hopeite from Bolivia, but to the best of my knowledge, these specimens are the first ever Hopeites from South America! I acquired just a few of these specimens in 2011 and I honestly thought them to be a
US$ 80.00
US$ 40.00
US$ 1625.00
