Minerals, Alloys, and Compounds (471)

This collection contains samples that are not pure elements, but rather mixtures of several. Most are naturally occurring minerals in more or less the form they come out of the ground. (With a few exceptions, minerals are complex chemical compounds or mixtures of compounds). Other samples here are pure chemical compounds or alloys (mixtures of metals). Each sample is listed under all of the elements it contains.

Click any element tile below to get the full entry for that element, or click on the sample picture to go directly to the description of that sample.

Text and images Copyright (c) 2010 by Theodore W. Gray.
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Uranium
Uranium Autunite

Autunite.
Source: Jim Markitell
Contributor: Jim Markitell
Acquired: 30 May, 2003
Price: Donated
Size: 1.5"
Composition: Ca(UO2)2(PO4)2.10H2O
Copper
Copper Michigan Native Float Copper

Michigan Native Float Copper.
Source: eBay seller ldcurtis2002
Contributor: Theodore Gray
Acquired: 3 June, 2003
Price: $2.85
Size: 3"
Composition: Cu
Manganese
Manganese Manganese Nodule
3D3D
Manganese Nodule.
Source: eBay seller mitryrock
Contributor: Theodore Gray
Acquired: 3 June, 2003
Price: $20.50
Size: 1"
Composition: MnNiCuCo
Chromium
Chromium Ferrochrome crystal
3D
Ferrochrome crystal.
Source: eBay seller valdor
Contributor: Theodore Gray
Acquired: 3 June, 2003
Price: $10
Size: 2.5"
Composition: FeCr
Chromium
Chromium Ferrochrome lump
3D
Ferrochrome lump.
Source: eBay seller valdor
Contributor: Theodore Gray
Acquired: 3 June, 2003
Price: $5
Size: 2"
Composition: FeCr
Copper
Copper Native Copper, Caledonia Mine
3D
Native Copper, Caledonia Mine.
Source: Larry Curtis
Contributor: Theodore Gray
Acquired: 10 June, 2003
Price: $2.50
Size: 2"
Composition: Cu
Sulfur
Sulfur Native Sulfur, El Desierto Mine
3D
Native Sulfur, El Desierto Mine.
Source: Larry Curtis
Contributor: Theodore Gray
Acquired: 10 June, 2003
Price: $2.50
Size: 2"
Composition: S
Chromium
Chromium Ferrochrome lumps

Ferrochrome lumps.
Source: John Wechselberger
Contributor: Theodore Gray
Acquired: 21 August, 2003
Price: $5
Size: 1.25"
Composition: FeCr
Titanium
Titanium Ferrotitanium lumps

Ferrotitanium lumps.
Source: John Wechselberger
Contributor: Theodore Gray
Acquired: 21 August, 2003
Price: $5
Size: 1.25"
Composition: FeTi
Copper
Copper 63 pound solid brass cylinder

63 pound solid brass cylinder.
Source: Marco's Scrap Metal
Contributor: Theodore Gray
Acquired: 21 August, 2003
Price: $35
Size: 10"
Composition: CuZn
Copper
Copper Copper Petrified Wood

Copper Petrified Wood.
Source: Calvin Webb
Contributor: Calvin Webb
Acquired: 1 September, 2003
Price: Donated
Size: 2"
Composition: Cu
Fluorine
Fluorine Banded Fluorite

Banded Fluorite.
Source: Calvin Webb
Contributor: Calvin Webb
Acquired: 1 September, 2003
Price: Donated
Size: 1"
Composition: CaF2
Barium
Barium Barite

Barite.
Source: Calvin Webb
Contributor: Calvin Webb
Acquired: 1 September, 2003
Price: Donated
Size: 1"
Composition: BaSO4
Fluorine
Fluorine Fluorite Crystals
3D3D
Fluorite Crystals.
Source: Calvin Webb
Contributor: Calvin Webb
Acquired: 1 September, 2003
Price: Donated
Size: 1"
Composition: CaF2
Iron
Iron Marcasite

Marcasite.
Source: Calvin Webb
Contributor: Calvin Webb
Acquired: 1 September, 2003
Price: Donated
Size: 1"
Composition: FeS2
Tellurium
Tellurium Sylvanite

Sylvanite.
Source: Calvin Webb
Contributor: Calvin Webb
Acquired: 1 September, 2003
Price: Donated
Size: 1"
Composition: (Au,Ag)2Te4
Yttrium
Yttrium YAG boule top
3D3D
YAG boule top.
Source: Max Whitby of RGB
Contributor: Max Whitby of RGB
Acquired: 10 October, 2003
Price: Donated
Size: 2"
Composition: (Cr,Y)Al2O3
Arsenic
Arsenic Native Arsenic with Loellingite
3D
Native Arsenic with Loellingite.
Source: Frank Liebscher
Contributor: Frank Liebscher
Acquired: 28 January, 2004
Price: Donated
Size: 1.25"
Composition: As+FeAs2
Aluminum
Aluminum Sapphire boule
3D
Sapphire boule.
Source: SoCal (Nevada), Inc
Contributor: Theodore Gray
Acquired: 28 April, 2004
Price: $65
Size: 4"
Composition: Al2O3+Ti
Silicon
Silicon Silicon Carbide crystal

Silicon Carbide crystal.
Source: eBay seller 4jdk
Contributor: Theodore Gray
Acquired: 28 January, 2004
Price: $95
Size: 4"
Composition: SiC
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