Mineral Specimen and Product Inventory Search

Availability

Sold

Locality

Tip Top mine, Custer Co., South Dakota, United States

Formula

Mn²⁺Fe³⁺₄(PO₄)₃(OH)₅

Size

5 x 3.5 x 3.5 cm - Miniature

Tagged

phosphate, pegmatite mineral

Silky compact fibrous crystals of Frondelite.

Availability

Sold

Locality

Tip Top mine, Custer Co., South Dakota, United States

Formula

Mn²⁺₅(PO₄)₂(PO₃OH)₂·4H₂O

Size

4.5 x 4.5 x 4 cm - Miniature

Tagged

phosphate, pegmatite mineral

Rich pink glassy crystals to 5mm. Under the scope you will also see many fine micro Hureaulite crystals and minor Jahnsite. The matrix is altered Triphylite with green Leucophosphite. 

Availability

Sold

Locality

Tip Top mine, Custer Co., South Dakota, United States

Formula

Mn²⁺₅(PO₄)₂(PO₃OH)₂·4H₂O

Size

6 x 3 x 5 cm - Sm Cabinet

Tagged

phosphate, pegmatite mineral

Hureaulite from the Tip Top mine is well represented on the world stage and probably some the best around. This one is a good specimen with well-defined with crystals to 8mm.