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Selenite Ankerite Quartz Fluorite Sphalerite & Brianyoungite

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PCZ716063

Selenite Ankerite Quartz Fluorite Sphalerite & Brianyoungite

Ex Ralph Sutcliffe

Description Tabs

Description
Locality: 
Rampgill Mine, Nenthead, Cumbria, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 6 × 1.3 cm
Description

A lot going on with this sizable specimen (Ex. Ralph Sutcliffe). Selenite with ankerite on quartz epimorphing fluorite.  Sphalerite and Brianyoungite also present.

Mineral Data
What's on the rock

Selenite

Variety Of: 

Gypsum

Formula: 
CaSO4·2H2O
Strunz: 
7.CD.40
Hardness: 
2.0
Hardness: 
0.0

Ankerite

Formula: 
Ca(Fe2+,Mg)(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Styrian Erzberg, Eisenerz, Styria, Austria

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Brianyoungite

Formula: 
Zn3(CO3,SO4)(OH)4
Strunz: 
5.BF.30
Crystal System: 
Orthorhombic or Monoclinic
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Brownley Hill Mine (Bloomsberry Horse Level), Nenthead, Alston Moor District, North Pennines, North and Western Region (Cumberland), Cumbria, England, UK
Peter Crozier Minerals