Sections
Thumbnails

Hessite crystals - click for larger pic
Hessite crystals
1,5 mm
© Gilles Haineault

Search this site

Powered by FreeFind

Home > Mineral Descriptions > Hessite - (1 Photo)



Hessite
Ag2Te

     Hessite is extremely rare at MSH.

PHYSICAL CHARACTERISTICS:

Color varies from steel-gray to lead-gray.
Luster is metallic.
Diaphaneity is opaque.
Crystal System is monoclinic; P21/n.
Crystal Habits include pseudo-cubic crystals.
Cleavage {010} is indistinct.
Fracture is even.
Hardness is 2 - 3.
Specific Gravity is approximately 8.25 g/cm3.
Streak is light gray.
Associated Minerals include galena, sphalerite, thalcusite and UK #53.
Distinguishing Features: Crystal habit and color.
Origin: Named in 1843 after Germain Henri Hess (1802-1850), Swiss
   chemist who first examined the mineral.

CLASSIFICATION:

Dana System
# 2.4.2.1

Strunz Classification
# II/B.05-40

REFERENCES:
Dana 8:43 (1997)

DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:

MSH
¤¤¤

PE
--

AP
--

MX
--

SS
--

MC
--

HF
--

BR
--

SX
¤¤

FR
--

Legend