12-08. Hematite #6.
Do you wonder what a hematite sounds like?
Its unit cell structure gives us the score, the notation, the key, even the notes’ succession and tempo!
I may rework this artwork as a multimedia file as soon as done with this project focusing uniquely on the visual aspect of the geometry of minerals. The challenge is intriguing!
From a resource by L. Finger and R. Hazen
12-07. Hematite #5.
Opposites attract each other!
Case in point – the stable and elegant structure of the hematite unit cell and the apparent chaos of its multitude of atoms. The result? A mineral that brings a beautiful variation of red as a powder but not much else in the tangible reality.
From a resource by L. Finger and R. Hazen.
12-03. Hematite #1.
Hematite, the rock our ancestor used to draw on cave walls, will be the mineral for week #49.
Hematite is one of the most abundant minerals on Earth – and on Mars too. Apparently, that’s where the planet’s red color comes from. It is a tight, atom packed crystal that has the shape of a hexagon or a scalenohedron – a six-sided polyhedron. It belongs to the trigonal family system and its symmetry is R3c.
It has been used extensively in intaglio engraved gems from Greek and Roman to Victorian times. Renaissance oil canvas painters made great use of it in its powder form because it’s opaque, stable and permanent. Mixed with white it creates a large array of pinkish to light brown colors found in many portraitures of the time.
From a resource by R. Blake, R. Hessevick, T. Zoltai, and L. Finger – a Hematite crystal unit cell from Elba, Italy.