Mineralpedia Details for Quenselite

Named in honor of Professor Perry Dudgeon Quensel, who was a Swedish mineralogist and petrologist at the University of Stockholm at Stockholm, Sweden.  Quenselite is found in just a few reported locations including Sweden, India, and Scotland. Mindat reports another set of localities that include China, Japan, Sweden, and the USA. The one locality that can be agreed upon is the type locality at Långban in Sweden. At the type locality, Quenselite occurs within “a metamorphosed Fe-Mn orebody.”

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

Formula

PbMn³⁺O₂(OH) 

Crystal System

Monoclinic 

Cleavage

Perfect, None, None 

Luster

Earthy (Dull) 

Color

pitch black 

Streak

dark brownish gray 

Class

Monoclinic - Sphenoidal 

Fracture

Flexible 

Hardness

2.5 

WebMineral

View Quenselite 

Mindat

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Special Info

Type Locality

Jet black and shiny thick tabular crystals to Quenselite. Excellent crystals and numerous of them!!