Wardite
A variety of Wardite Group
What is Wardite?
Wardite is a rare and fairly obscure mineral that may be found in hues ranging from blue to green to milky to colorless. Because its crystals tend to take on a rare form (they are tetragonal trapezohedral), this mineral is often sought after by collectors. Soft and brittle, it is rarely cut into gemstones.
Optical Properties
- Refractive Index
- 1.590-1.599
- Birefringence
- 0.009
- Optical Character
- Biaxial positive
Wardite Market Value Calculator
Estimate the market value of Wardite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Wardite Localities Map
See where Wardite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Key Characteristics
Formation of Wardite
It occurs with variscite in phospatic nodules and occurs uncommonly in pegmatites and phosphate deposits through alteration of amblygonite. Wardite was named for Henry Augustus Ward (1834–1906) of the University of Rochester in New York. It first described in 1896 for an occurrence in Clay Canyon, Fairfield, Utah County, Utah, US. Though rare it has been reported from many locations worldwide.
Quick Facts
Physical Properties
- Color
- Colourless, white, lightly coloured blue to green, yellow-green, light yellow, brown, colourless in transmitted light
- Hardness (Mohs)
- 5
- Density
- 2.805 g/cm³
- Streak
- White
- Luster
- Vitreous
- Crystal System
- Tetragonal
Chemical Properties
- Chemical Formula
- NaAl3(PO4)2(OH)4 · 2H2O
- Elements
- Al, H, Na, O, P
Also Known As
Identify Wardite Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you