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
Checkout
0 item @ $0.00  
Home | My Cart | Login | Register

Walentaite

#WR56078
SOLD
Walentaite from White Elephant mine, Custer Co., South Dakota, United States - WR56078
Walentaite from White Elephant mine, Custer Co., South Dakota, United States - WR56078

Walentaite

#WR56078
Availability
Sold
Size
1.5 x 1.5 x 0.5 cm - Thumbnail 
Formula
H2Ca2Fe3+6(AsO4)5(PO4)3·14H2O (RRUFF)
Locality
White Elephant mine, Custer Co., South Dakota, United States
Tagged
phosphate , arsenate , pegmatite mineral

This is a type localitiy specimen of Walentaite, a mineral first discovered at the White Elephant mine. It has subsequently been found at another five localities worldwide. The crystals on this specimen are flat-lying and radial to about 0.3mm. It is small, a thumbnail but shows good crystals across the face.

It carries a Willard L. Roberts label.

Type Locality

Walentaite

Formula
H2Ca2Fe3+6(AsO4)5(PO4)3·14H2O 
Crystal System
Orthorhombic 
Crystal Habit
Rosette 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
greenish yellow, yellow green, bright yellow 
Streak
yellow 
Class
Orthorhombic 
Hardness
3 

Data courtesy of Webmineral.

Collection
Willard L. Roberts Collection
Special Info
Type Locality
Mineralpedia
View Walentaite
On Dakota Matrix
Previously Sold Walentaite
On Dakota Matrix
Other Available Walentaite
WebMineral
View Walentaite
Mindat
View Walentaite

Other Sold

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2025 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map