Amethyst , Hematite

Locality:Orange River Region,South Africa
(https://www.mindat.org/loc-31155.html)

(Quartz)
Formula:SiO2
Colour:Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc.
Lustre:Vitreous
Hardness:7
Specific Gravity:2.65 - 2.66
Crystal System:Trigonal

(Hematite)
Formula:Fe2O3
Colour:Steel-grey to black in crystals and massively crystalline ores, dull to bright "rust-red" in earthy, compact, fine-grained material.
Lustre:Metallic, Sub-Metallic, Dull, Earthy
Hardness:5 - 6
Specific Gravity:5.26
Crystal System:Trigonal