Native Metals Oxide and Ore Minerals (More non silicates)

What is the chemical equation for Corundum? (Oxide) And the system?

Al2O3, trigonal

Chem equation for rutile? (Oxide) And the system?

TiO2, tetragonal

Chem equ for ilmenite? (Oxide) And the system?

FeTiO3, trigonal

Chem equ for hematite? (Oxide) And the system?

Fe2O3, trigonal

Chem eq for magnetite? (Oxide) And the system?

Fe3O4, isometric

Chem equ for chromite? (Oxide) And the system?

FeCr2O4, isometric

Chem equ for limonite? (Hydroxide) Crystal system?

FeO(OH) x nH2O, orthorhombic

Chem equation for halite? (halide) crystal system?

NaCl, isometric

Chem equation for sylvite (halide) and system

KCl, isometric

Chem equ for fluorite (halide) and crystal system?

CaF2, isometric

Chem equ for copper (native) and crystal system?

Cu, isometric

Chem equ for silver (native), system?

Ag, isometric

Chem eq for graphite, (native) system?

C, hexagonal

Chem equ for sulfur (native) and system?

S, orthorhombic

What is this mineral?

Corundum

What is this mineral?

Rutile

What is this mineral?

Ilmenite

What is this mineral?

Hematite

What is this mineral?

Magnetite

What is this mineral?

Chromite

What is this mineral?

Limonite

What is this mineral?

Halite

What is this mineral?

Sylvite

What is this mineral?

Fluorite

What is this mineral?

Copper

What is this mineral?

Silver

What is this mineral?

Graphite

What is this mineral?

Sulfur