How do I identify Phosphophyllite?

Phosphophyllite can be identified by its hardness of 3 - 3.5 on the Mohs scale, Bright blue-green to colourless color, Vitreous, Resinous, Waxy, Sub-vitreous luster, Monoclinic crystal system. Look for these key characteristics when examining specimens.

What color is Phosphophyllite?

Phosphophyllite typically appears in Bright blue-green to colourless, colourless in transmitted light. Color can vary depending on impurities and formation conditions.

How hard is Phosphophyllite?

Phosphophyllite has a hardness of 3 - 3.5 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

Phosphophyllite

A variety of Minerals

Rare

Phosphophyllite specimen - rock identification

What is Phosphophyllite?

The clarity and sheen of phosphophyllite make it an excellent selection for use as a gemstone; its brittle nature, however, makes it very difficult to sculpt into any usable form for jewelry. It is mostly used as a collectible gem in its raw state. It is rare to come across the largest specimens, which originate from Bolivia.

Etymology & Origins

Its name derives from its chemical composition (phosphate) and the Greek word for "leaf", phyllon, a reference to its cleavage.

Uses & Applications

It is highly prized by collectors for its rarity and for its delicate bluish green colour. Phosphophyllite is rarely cut because it is fragile and brittle, and large crystals are too valuable to be broken up.

Optical Properties

Refractive Index: 1.595-1.621
Birefringence: 0.021
Pleochroism: None
Optical Character: Biaxial negative

Phosphophyllite Market Value Calculator

Estimate the market value of Phosphophyllite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.