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 @ $125.00  

Ludlamite

#56454

Ludlamite

#56454
Availability
Sold
Size
8 x 4 x 4.5 cm - Sm Cabinet 
Formula
Fe2+3(PO4)2·4H2O (RRUFF)
Locality
Big Fish River, Dawson dist., Yukon Territory, Canada
Tagged
phosphate

The true color is that of the first, main photo, which is a nice apple green. The largest crystals are 1cm across and show good forms on the {100} and {110}. To see these forms you will have to tilt the specimen back and forth. The faces show perfect cleavage on the {001}. All the phosphates from this area are phosphorites meaning they have formed in a sedimeitary environment (usually black shales). The matrix on this piece is shale. 

Ludlamite

Formula
Fe2+3(PO4)2·4H2
Crystal System
Monoclinic 
Crystal Habit
Massive - Granular 
Cleavage
Perfect, Indistinct, None 
Luster
Vitreous (Glassy) 
Color
apple green, colorless, green, greenish white, light green 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
3.5 

Data courtesy of Webmineral.

Mineralpedia
View Ludlamite
On Dakota Matrix
Previously Sold Ludlamite
On Dakota Matrix
Other Available Ludlamite
WebMineral
View Ludlamite
Mindat
View Ludlamite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2021 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map