Pingguite

Formula: Bi₆Te₂O₁₃

Origin of name: after locality Pinggu County, China

Crystal system: orthorhombic

Crystal class: unknown

Twinning:

Unit cell:

Colour: yellowish green

Diaphaneity: transparent

Luster: vitreous to adamantine

Habit: tabular grains to 0.6 micron long in granular aggregates to 0.5 mm diameter

Hardness: 5 to 5.5

Specific gravity: 8.44

Cleavage:

Tenacity:

Streak: light yellow-green

Synonyms/varieties:

Comments:

Colour photos

Thin sections

SEM images

TEM images

vibrational spectra description

IR spectra

Raman spectra

N-IR spectra

F-IR spectra

IES spectra