Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Tiptopite Roscherite Kingsmountite & Englishite

Views:
Watches:
BCK524073

Tiptopite Roscherite Kingsmountite & Englishite

Type Locality

Description Tabs

Description
Locality: 
Tip Top Mine, Fourmile, Custer County, South Dakota, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.2 × 1.4 cm
Description

You are bidding on an exceptional example of roscherite from Tip Top with rich red crystals covering the matrix and lying on top of other minerals. Also are beautiful sprays of tiptopite and beige groups of kingsmountite/montgomeryite and tiny white balls of englishite. A really good Tip Top Mine piece. 

Mineral Data
What's on the rock

Tiptopite

Formula: 
K2(Na,Ca)2Li3Be6(PO4)6(OH)2·H2O
Strunz: 
8.DA.25
Hardness: 
3.5
Type Locality: 
Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA

Roscherite

Formula: 
Ca2Mn2+5Be4(PO4)6(OH)4·6H2O
Strunz: 
8.DA.10
Crystal System: 
Monoclinic Tabular crystals or platy aggregates
Hardness: 
4.5 - 0.0
Streak: 
White
Type Locality: 
Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany

Kingsmountite

Formula: 
Ca4(Fe2+,Mn2+)Al4(PO4)6(OH)4·12H2O
Strunz: 
8.DH.25
Hardness: 
2.5
Streak: 
White
Type Locality: 
Foote Lithium Co. Mine (Foote Mine), Kings Mountain District, Cleveland Co., North Carolina, USA

Englishite

Formula: 
K3Na2Ca10Al15(PO4)21(OH)7·26H2O
Strunz: 
8.DH.55
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Clay Canyon, Fairfield, Oquirrh Mts, Utah Co., Utah, USA

Seller Information

Payment options: offline, paypal_wpp, paypal_wps