Variscite is a relatively rare hydrated aluminium phosphate mineral. It is sometimes confused with turquoise; however, variscite is usually greener in color. The green color results from the presence
Cut slab of variscite at the Smithsonian. Specimen is roughly 0.5 m wide.
Variscite filling the cracks in siltstone. The sample is from Queensland, Australia. The width of the view is 11 cm (4.3 in).
Polished variscite from Nevada
Wardite is a hydrous sodium aluminium phosphate hydroxide mineral with formula: NaAl324·2. Wardite is of interest for its rare crystallography. It crystallizes in the tetragonal trapezohedral class an
Wardite from Rapid Creek – Yukon, Canada