Hydromagnesite
Unknown Owner
Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
An attractive specimen featuring colorless acicular micro crystals of hydromagnesite largely covering the top of the matrix, forming a delicate sparkling layer with fine fibrous texture. The coverage is extensive and provides excellent representative character for the species from this locality. The specimen is in good condition and is accompanied by an antique label dating to the early 20th century, as shown at the end of the video, adding important historical provenance and collector appeal. Devils Hole at Sugarloaf Butte is a noted California occurrence for secondary magnesium carbonates formed through low temperature alteration processes.
Product details
SpeciesHydromagnesite
SizeCabinet
Dimensions10.5 x 7.5 x 3.0 cm
Added on02/23/2026
LocalityUSA, California
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 05/2026 | Unknown Owner | $350.00 |
| — | Weinrich Minerals | Not disclosed |


Comments