Hessite
Mineral Ag2Te
About it
Sectile, lead-grey silver telluride, usually massive in gold-silver veins. Fine crystals come from Botés, Romania; named for the chemist Germain Henri Hess.
- Type
- Mineral
- Group
- Telluride
- Formula
- Ag2Te
- Hardness (Mohs)
- 1.5–3
- Specific gravity
- 7.2–8.5
- Streak
- black
- Lustre
- metallic
- Crystal system
- Monoclinic
- Colours
- lead grey, steel grey, dark tarnish
- Transparency
- opaque
- Cleavage and fracture
- indistinct; uneven fracture, sectile
Typical values: real specimens vary. For more, see mindat.org.