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
0 item @ $0.00  

Montroydite on Terlinguaite

#PD34250

Montroydite on Terlinguaite

#PD34250
Availability
Sold
Size
1.5 x 2 x 1.5 cm - Thumbnail 
Formula
HgO (RRUFF)
Locality
Terlingua dist., Brewster Co., Texas, United States

A small but very rich little piece with glassy bright orange microcrystals of Montroydite, the largest of which is <0.5mm, on a thin layer of yellow-gray waxy Terlinguaite.

Montroydite was named for Montroyd Sharp, the owner of the Terlingua mine where both Montroydite and Terlinguaite were discovered.

Additionally, this little piece has some provenance from an old handwritten Ward's label with a note mentioning that these are "(fine xls)" of Montroydite.

Type Locality

Montroydite

Formula
HgO 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Fine 
Cleavage
Perfect, None, None 
Luster
Adamantine 
Color
red, brownish red, brown 
Streak
reddish orange 
Class
Orthorhombic - Dipyramidal 
Fracture
Sectile 
Hardness
1.5-2 

Data courtesy of Webmineral.

Collection
Phillips Collection
Special Info
Type Locality

Ward's Natural Science Est. label

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2019 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map