Obsidian: Rocks we know we knowDec 21, 2017
$5.50 inc GST
Chemically, pyrite is an iron sulfide with the chemical formula FeS₂
Approx dimensions: 4 x 2 x 2cm
Black to slightly green streak
Moh’s hardness 6-6.5
Conchoidal fractureCleavage, none
Cubic crystal structure is clearly visible and crystal faces display striations typical of pyrite
The specimen can be handled by students without damage if it is handled with care.
Specimens shown are representative only.
4 in stock