Wegscheiderite

Formula: Na5(CO3)(HCO3)3

Origin of name: for R. Wegscheider, chemist

 

Crystal system: triclinic

Crystal class: 1

Twinning:

Unit cell: a = 10.04, b = 15.56, c = 3.466, α = 91.917°, β = 95.817°, γ = 108.667°

 

Colour: Colourless

Diaphaneity: Transparent

Luster: Vitreous

Habit: Crystals acicular to bladed, to 5 cm

Hardness: 2.5 to 3

Specific gravity: 2.34

Cleavage: 1; prismatic distinct

Tenacity: Conchoidal fracture

Streak: White

 

Synonyms/varieties:

 

Comments: 

 

Back to Alphabetical list Colour photos Optical properties/Thin sections SEM images TEM images vibrational spectra description IR spectra Raman spectra N-IR spectra F-IR spectra IES spectra