Beecher Lode, Custer, Custer District, Custer Co., South Dakota, USA

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List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite	2.8.10.1	Fe1-xS (x = 0 to 0.17)
Group 4 - SIMPLE OXIDES
A2X3
Hematite	4.3.1.2	Fe2O3
AX2
Cassiterite	4.4.1.5	SnO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite	7.2.2.3	Fe2+Fe3+2O4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Amblygonite	41.5.8.1	LiAl(PO4)F
A5(XO4)3Zq
Fluorapatite	41.8.1.1	Ca5(PO4)3F
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Andalusite	52.2.2b.1	Al2(SiO4)O
Sillimanite	52.2.2a.1	Al2(SiO4)O
Staurolite	52.2.3.1	(Fe2+,Mg,Zn)1.5-2Al9(SiO4)4O6(OH,O)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl	61.1.1.1	Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Elbaite	61.3.1.8	Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Schorl	61.3.1.10	Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Spodumene	65.1.4.1	LiAlSi2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite	71.2.2a.1	KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz	75.1.3.1	SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite	76.1.3.1	NaAlSi3O8
Microcline	76.1.1.5	KAlSi3O8
Unclassified Minerals
Albite var: Cleavelandite	-	NaAlSi3O8
'Apatite'	-
Columbite	-	(Fe,Mn)(Nb,Ta)2O6
'Columbite-Tantalite'	-
Grunerite	-	☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Lepidolite	-
Limonite	-	FeO(OH) · nH2O
'Mica Group'	-
'Perthite'	-
Spodumene var: Kunzite	-	LiAlSi2O6
'Tourmaline'	-	A(D3)G6(T6O18)(BO3)3X3Z

28 entries listed. 21 valid minerals.