Aragonite crystals from Matehuala, San Luis Potosí, Mexico. One unique flat.
This collection contains Aragonite crystals from the well-known mineral region of Matehuala in the Mexican state of San Luis Potosí. The specimens display numerous crystal aggregates and crystalline coatings in cream white, beige and light brown shades. The Aragonite crystals occur as dense crusts as well as freely developed crystal groups, giving the specimens an attractive and varied appearance. Particularly characteristic are the fine crystalline to radiating aggregates for which Aragonite from this locality is highly appreciated.
The illustrated flat is exactly the collection offered for sale. The combination of differently developed crystal aggregates and the historic origin from a classic Mexican mineral district makes this collection appealing to both beginning and advanced mineral collectors.
Geology & Origin
Matehuala in San Luis Potosí is one of Mexico's notable mineral localities. The region is known for its diverse hydrothermal deposits in which numerous secondary minerals formed. Aragonite developed from calcium-rich solutions that filled cavities and fractures within the host rock. The abundant crystal aggregates and characteristic growth forms have made Aragonite from Matehuala a popular collector mineral for decades.
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) |