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  

Fluorite with Pyrite in hornfels

#49111

Fluorite with Pyrite in hornfels

#49111
Availability
Sold
Size
11.5 x 9 x 10 cm - Cabinet 
Formula
CaF2 (RRUFF)
Locality
Golden Sunlight mine, Jefferson Co., Montana, United States
Tagged
ore mineral

This specimen was mined from the Golden Sunlight mine in northern Montana and exhibits impregnation of Fluorite and sulfides (mostly Pyrite) of hornfels. It is sawed and nicely polished on one side. Impressive ore textures.

Fluorite

Formula
CaF2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Massive - Granular, Disseminated 
Cleavage
Three perfect, octahedral cleavages. 
Luster
Vitreous (Glassy) 
Color
purple, clear, yellow, green, red, blue 
Streak
white 
Geological Setting
Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments  
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness

Data courtesy of Webmineral.

Collection
Chris van Laer Collection
Mineralpedia
View Fluorite
On Dakota Matrix
Previously Sold Fluorite
On Dakota Matrix
Other Available Fluorite
WebMineral
View Fluorite
Mindat
View Fluorite

Related Products

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