Turquoise – Overview
Intro
Turquoise is an opaque blue-to-green gem material prized for colour, matrix patterns, and historic jewellery use.
Overview
This starter entry positions turquoise as a design and heritage material where treatment, stability, and honest naming are essential parts of education.
About
This starter entry positions turquoise as a design and heritage material where treatment, stability, and honest naming are essential parts of education. Turquoise is presented here as a structured gemstone record ready for linked buyer guides, research posts, and media galleries.
Key Properties
| Mineral / material | Turquoise |
|---|---|
| Chemistry | CuAl6(PO4)4(OH)8·4H2O |
| Crystal system | Triclinic |
| Colour | Blue to green |
| Refractive index | 1.61 – 1.65 |
| Specific gravity | 2.6 – 2.9 |
| Mohs hardness | 5 – 6 |
| Luster | Waxy to subvitreous |
| Transparency | Opaque |
| Toughness | Fair |