Mineralpedia Details for Kladnoite

Named after its type locality at the Kladno mine in the Kladno district of the Czech Republic. One additional locality for this rare mineral occurs in Russia in the Southern Urals. Kladnoite forms as a result of coal heap fires. Kladnoite is typically colorless to white to a pale yellow and forms elongate crystals.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/kladnoite.pdf

Formula

C₆H₄(CO)₂NH 

Crystal System

Monoclinic 

Cleavage

Good, None, None 

Color

colorless, white 

Streak

white 

Class

Monoclinic - Prismatic 

Hardness

- 

WebMineral

View Kladnoite 

Mindat

View Kladnoite 

Yellowish bladed crystals to 3mm with dendritic like growth patterns across face produced by burning coal.