Rossmanite Crystals from the Childs Aldwinkle Mine, Arizona, USA. One unique flat for mineral collectors.
This flat contains a selection of Rossmanite crystals from the Childs Aldwinkle Mine in Arizona, USA. The specimens display greyish green to silvery grey, fine fibrous to radiating Rossmanite crystals on a light coloured pegmatite matrix. Several pieces feature small cavities and crystal-lined surfaces that highlight the different growth habits of this rare Tourmaline species. The flat shown is exactly the unique collection offered.
Geology & Origin
The Childs Aldwinkle Mine is one of Arizona's well-known pegmatite localities and is particularly famous for its rare lithium-bearing Tourmalines. Rossmanite formed during the late stages of pegmatite crystallization together with Quartz, Feldspar and other lithium minerals. The locality is regarded as one of the classic sources for this rare Tourmaline species and is highly appreciated by mineral collectors worldwide.
Abbreviations commonly used in mineralogy.
| Abbreviation | Meaning |
| xl | single crystal, possible with matrix |
| xls | noticeable crystals |
| (xl) | embedded or damaged |
| (xls) | embedded or damaged |
| MASS | massive and/or amorphous pieces |
| TYP | type locality of the original description |
| SWUV | shortwave-UV-reaction |
| UV | ultraviolet reaction |
| SC | self-collected |
| U | unique (single unique piece) |