Carlhintzeite Locality: Hagendorf South Pegmatite (Cornelia Mine; Hagendorf South Open Cut), Hagendorf, Waidhaus , Vohenstrauß, Upper Palatine Forest , Upper Palatinate, Bavaria, Germany ( Locality at mindat.org ) Picture width 3 mm. Collection and photo Christian Rewitzer — Photo: Christian Rewitzer · CC BY-SA 3.0
Carlhintzeite
Carlhintzeite is an IMA-recognized mineral species in the halide class, with the chemical formula Ca₂AlF₇·H₂O.
It crystallizes in the triclinic crystal system (space group P-1).
Key properties: specific gravity 2.86; White streak; Vitreous luster; optically biaxial.
IMA symbol Chz, IMA status: approved, named in 1978.
Formed by hydrothermal alteration of triphyllite in a pegmatite.
It is found associated with Rockbridgeite, pyrite, strengite, apatite.
The name refers to Dr. Carl Hintze (1851-1916), Professor of Mineralogy, Univerity of Breslau, Breslau, Germany, noted for his compilation of the famous Handbuch der Miiierelogie.