Mineral Specimen #6728 Burbankite, Analcime, Ilmenite, Fluorite
Prefeitura Quarry, Pocos de Caldas, Minas Gerais, Brazil
4.7 x 3.6 x 1.6 cm
1.9 x 1.4 x 0.6 in
Ex. Luiz Menezes
Burbankite is a rare carbonite which on this specimen is present as a few scattered small thin and elongated crystals which and can best be seen in the third photo where arrows have been added. Additionally, this specimen is an example of two species, although fairly common worldwide, are actually quite rare for Brazil. They are Analcime, with only 9 specimens posted on mindat - none from Minas Gerais. Also, Fluorite is quite rare from Brazil with only 50 specimens posted on mindat. The Analcime is present as small, white crystals. The Fluorite is present has one small, gemmy green crystals and a broken crystal which is both green and purple. There are also small crystals of black colored Ilmenite present which is also not common from Brazil (numerous locations but only one specimen posted on mindat). There is also present on the specimen an area of an orange brown unidentified material.
Condition: Fairly Good
Flaws: There are three areas on one side of the specimen in very good condition with crystals; the rest of the specimen is composed of massive material.
This mineral is also found in the following galleries: Minerals From Brazil | Carbonates | Zeolites | Oxides and Hydroxides | Fluorite | Rare Minerals | Minerals Priced Between 25 and 49 Dollars