mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
1 item @ $40.00  

Mineralpedia Details for Durangite

Reset

Durangite

Durangite

Named in reference to the type locality at the Barranca mine in the Durango state of Mexico. Other localities for Durangite include in Canada at the Reeves Pit and Lake Ramsay in Nova Scotia, the United States in New Mexico at the Thomas range and in Utah in the Taylor Creek tin District and near Sawmill Creek, and possible in the Cheesewring quarry in Cornwall, England. Durangite occurs in veins through alkalic rhyolite and tin placers that were derived from alkalic rhyolites and in pegmatite dikes through granite.

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

Formula
NaAlAsO4
Crystal System
Monoclinic 
Cleavage
Indistinct, Distinct, None 
Luster
Vitreous (Glassy) 
Color
light yellow, dark green, orange red, red 
Streak
yellow 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Uneven 
Hardness
5.5 
WebMineral
View Durangite 
Mindat
View Durangite 

Durangite from Tin mine, Thomas Range, Juab Co., Utah, United States

Durangite
            from Tin mine, Thomas Range, Juab Co., Utah, United States

Deep red crystals, tabular on 010, to about 0.5mm and smaller to indistinct crystals associated with platy Hematite. 

Click thumbnail images for larger view.

Durangite from Thomas Range, Juab Co., Utah, United States

Durangite
            from Thomas Range, Juab Co., Utah, United States

Orange branching Durangite, a rare arsenate member of the Tilasite group.

Click thumbnail images for larger view.

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2024 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map