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1 - Wulfenite (Min)
2 - Thortveiti (Min)
3 - Boracite (Min)
4 - Challacoll (Min)
5 - Veszelyite (Min)
6 - Glaucoceri (Min)
7 - Cobaltaust (Min)
8 - Siegenite (Min)
9 - Ludlamite (Min)
10 - Newberyite (Min)
11 - Santarosai (Min)
12 - Tapiolite- (Min)
13 - Tyuyaminit (Min)
14 - Tantalite- (Min)
15 - Gold (Min)
16 - Native Syl (Min)
17 - Hubnerite (Min)
18 - Weeksite w (Min)
19 - Rockbridge (Min)
20 - Cuprite (Min)
21 - Azzurrite (GMi)
22 - Tetrahedri (GMi)
23 - Titanite (GMi)
24 - Vesuvianit (Rol)
25 - Clinoclase (Rol)
26 - Fluoro-ede (Rol)
27 - Meneghinit (Rol)
28 - Halotrichi (Rol)
29 - Dioptase x (Rol)
30 - Stibnite, (Rol)
31 - Cinnabar, (Rol)
32 - Sylvanite (Rol)
33 - Withlockit (Rol)
34 - Vesuvianit (Rol)
35 - Acanthite (Rol)
36 - Quartz (Rol)
37 - Roggianite (Rol)
38 - Libethenit (Rol)
39 - Langite (GMi)
40 - Cuprian ad (GMi)

Siegenite - Buick Mine, Bixby, Iron Co., Missouri, USA (#:MINS9311)

Specimen richly covered in metallic Siegenite xls up to 3 mm with brassy marcasite and galena in association.

Formula :
(Ni,Co)₃S₄
System: cubic Hardness:5-5½ Rarity:rare
Strunz id:II/D.1-80 - 2 : Sulphides
Name origin: Named after its discovery locality in the Siegen district, Westphalia (Germany).