Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- Miniature 3.5x2.5x2.5cm
- Tagged
- phosphate
You get to looking at this specimen and it is really cool. Basically it is of tiny deep red Bermanite crystals which are probably less than 0.2mm in size grown on the much "larger" 3-5mm dark red Hurealite crystals. The Hureaulite however was in the process of being pseudomorphed by what looks like Jahnsite as portions of some of the Hureaulite crystals are yellow. Also in association are blobs of black Rockbridgeite clusters lurking in the shadows deep in the vug.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- SmCabinet 6.5x4x2cm
- Tagged
- phosphate
Dark rusty red short bladed crystals of Bermanite with yellow Laueite (up to 1mm), light pink Hureaulite and small light green balls of Dufrenite.
- Availability
- Sold
- Locality
- Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- Miniature 3.5x2x1.5cm
- Tagged
- phosphate , pegmatite mineral
A beautiful specimen, though small, of beady purple Strengite and flashy rusty red Bermanite.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- SmCabinet 8x6x4cm
- Tagged
- phosphate , pegmatite mineral
Deep dark red micro crystals of Bermanite with rich coverage in voids with micro Hureaulite and Jahnsite.
- Availability
- Sold
- Locality
- Kobokobo Pegmatite, Sud-Kivu, Democratic Republic of Congo
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- SmCabinet 6x5.5x3cm
- Tagged
- phosphate , pegmatite mineral
Fantastic colorful specimen. These are the largest Bermanite crystals I have see - to a whopping 1mm. The Strengite exhibits a nice lavendar color. The backside shows several thick tabular crystal plates of Columbite to 5cm long. Other phosphated are likely present.
- Availability
- Sold
- Locality
- Kobokobo Pegmatite, Sud-Kivu, Democratic Republic of Congo
- Formula
- Mn2+Mn3+2(PO4)2(OH)2·4H2O
- Size
- Miniature 4x2x3cm
- Tagged
- phosphate , pegmatite mineral
Rusty red crystals of Bermanite lining a phosphate vug with purple Strengite.
