This document lists the appearances of various chemical powders and solids. It describes 18 different chemicals including metals like zinc, lead, cadmium, iron, copper and aluminum as well as their oxides. For each chemical, it provides the chemical name and describes its visual appearance such as color and physical state as either a powder, crystal or solid metal.

1. Chemical Powder Appearances
No. Chemical Name Appearance Visual
1 Zn Zinc Gray or bluish-gray powder
2 ZnO Zinc oxide White solid
3 Pb Lead Solid, gray with bluish
4 PbO Lead (II) oxide; or
Lead monoxide
Red or yellow powder
5 PbO2 Lead (IV) oxide; or
Lead dioxide; or
Plumbic oxide
Dark-brown, black powder
6 Pb3O4 Lead (II,IV) oxide; or
Minium; or
Read lead; or
Tripumblic tetroxide
Vivid orange crystals
7 Cd Cadmium Bluish-silver lustrous metal
8 CdO Cadmium oxide Colorless powder (alpha form)
Red-brown crystal (beta form)
9 CdS Cadmium sulfide Yellow-orange to brown solid
10 Fe Iron Solid metallic powder: Black to
grey

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11 FeO Iron (II) oxide; or
Wustite
Black crystals
12 Fe2O3 Iron (III) oxide; or
Ferric oxide; or
Hematite
Red-brown solid
13 Fe3O4 Iron (II,III) oxide; or
Magnetite
Solid black powder
14 Cu Copper Red-orange metallic luster
15 CuO Copper (II) oxide; or
Cupric oxide
Black to brown powder
16 Cu2O Copper (I) oxide; or
Cuprous oxide
Brownish-red solid
17 Al Aluminum powder Silver gray metallic
18 Al2O3 Aluminum oxide; or
Alumina
White crystalline powder