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- Availability
- Sold
- Featured
- Featured in Special Editions
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- KFe3+2(PO4)2(OH)·2H2O
- Size
- SmCabinet 7x5x4cm
- Tagged
- phosphate
This is a very vuggy matrix of Triphylite with abundant micro crystals of glasst Leucophosphite (greenish to purple), pink Hureaulite, Jahnsite, Tavorite, and Jahnsite-(CaMnMg). It is a fascinating specimen. The second photo shows a group of Jahnsites in an "S" growth pattern.
- Availability
- Sold
- Locality
- Těškov quarry, SE of Prague, Bohemia, Czech Republic
- Formula
- KFe3+2(PO4)2(OH)·2H2O
- Size
- SmCabinet 4.5x8x7.5cm
- Tagged
- phosphate
Excellent rich specimen with tiny clusters of translucent purplish Leucophosphite crystals to <1mm with even tinier yellow balls of Meurigite absolutely covering the vuggy Quartz matrix.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- KFe3+2(PO4)2(OH)·2H2O
- Size
- Miniature 3.5x2.5x2cm
- Tagged
- phosphate
OK - obviously I priced this one way way too high. You can tell by all the photos I took, it obviously impressed me. But 225?.......try this price.
This is in every regard one of the finest Leucophosphite specimens you may ever run across. Of course there are better, but not on the market. Although small (3cm), it is loaded with purplish to sherry colored, gemmy and lustrous leucophosphite crystals. The largest crystal is 5mm. In association are yellow Jahnsite crystals, Hureaulite, and a green fibrous mineral, which is probably dufrenite, beraunite, or rockbridgeite.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- KFe3+2(PO4)2(OH)·2H2O
- Size
- SmCabinet 8x5x6cm
- Tagged
- phosphate , pegmatite mineral
Here is a wonderful specimen from the famous Tip Top pegmatite. There are at least four well-crystallized phosphate species in the mix. First are the light purple translucent Leucophosphite crystals to 1mm lining the solution cavity. These are secondary growths crystallized out of solution, as opposed to the bottle green formless masses of Leucophosphite which were formed by replacements of the parent Triphylite. Next are the numerous fans of black, acicular Rockbridgeite crystals to 1mm. All over are the smaller, less than 1mm, nut brown to orange brown Jahnsite-(CaMnMg) crystals. There are faint pink Hureaulite crystals, which measure about 2mm. A difficult subject to photograph because of the depth of focus so hard to capture with my set-up. A fun specimen though to check out for a while under the scope.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- KFe3+2(PO4)2(OH)·2H2O
- Size
- SmCabinet 7.5x4x5.5cm
- Tagged
- phosphate , pegmatite mineral
An excellent specimen of purple Leucophosphite with gemmy crystals to 3mm. There are many good crystals and they exhibit some color change depending on your light source. Look at the prov. tab and you will see the old Bill Roberts tag, which states that it is one of the world's best (for that time). This is an ex. Mike Groben specimen with a date of 1976 on the tag. Since then, the Tip Top had been mined deeper and many more specimens were found in the early 1980's. Nonetheless, still a fantastic specimen. There is some minor Hureaulite crystals.
- Availability
- Sold
- Locality
- Tip Top mine, Custer Co., South Dakota, United States
- Formula
- KFe3+2(PO4)2(OH)·2H2O
- Size
- SmCabinet 7.5x5.5x4cm
- Tagged
- phosphate , pegmatite mineral
A fabulous Tip Top mine specimen with several minerals forming great microcrystals. The Leucophosphite can be seen in the photos as glassy purple crystals to 2mm. The Leucophosphite is color-changing from light brownish tan to purple depending upon the lighting. The Hureaulite is the salmon colored pointed crystals, and the Jahnsite is the amber brown crystals. There is also a little bit of Tavorite (green) and Rockbridgeite in the matrix. There is possibly a bladed crystal of Vivianite of which I could not get a good color to know for sure.
