|
On eBay Now...
Rockbridgeite And Beraunite, Three Oak Gap, Polk Co, Arkansas- (Box Included) For Sale
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Rockbridgeite And Beraunite, Three Oak Gap, Polk Co, Arkansas- (Box Included):
$58.43
Rockbridgeite And Beraunite, Three Oak Gap, Polk Co, Arkansas- (Box Included) Collectors Piece, Home Décor
Weight 40gSize 4.5cm by 3cmThickness 2cm
Rockbridgeite is an anhydrous phosphate mineral in the \"Rockbridgeite\" supergroup with the chemical formula Fe2+Fe3+4(PO4)3(OH)5. It was discovered at the since-shut-down Midvale Mine in Rockbridge County, Virginia, United States. The researcher who first identified it, Clifford Frondel, named it in 1949 for its region of discovery, Rockbridge County.
Beraunite is an iron phosphate mineral. It was first described by August Breithaupt for an occurrence in Beraun currently in the Czech Republic. Beraunite occurs as a secondary mineral in iron ore deposits, and as an alteration product of primary phosphate minerals in granite pegmatites.
Beraunite crystallizes in the monoclinic crystal system with point group 2/m. Beraunite’s formula is Fe2+ Fe3+5(OH)5(PO4)4·4H2O. Aluminium and zinc may substitute in the structure.
Strengite and Rockbridgeite from Leveaniemi, Iron Mine, Sweden $549.99
Rockbridgeite And Beraunite, Three Oak Gap, Polk Co, Arkansas- (Box Included) $58.43
Rare Hureaulite and Rockbridgeite from the Cigana Mine, Minas Gerais, Brazil $46.74
Stunning Hureaulite with Rockbridgeite and Jahnsite Tip Top mine $550.00
|
