# mineralmonday science art scicomm sciart colors rocks geology minerals crystals wallart microscopy photography arte nature abstractart beach microscope thinsectionthursday melt anatexis cordierite garnet glass inclusions biotite spinel petrology metamorphism stem saturdaythoughts rocktober gemsona stevenuniverse characterdesign


Sillimanite. Those tiny little needles...
From upper left clockwise: Calabria (Italy); somewhere in Brazil; Vedrette di Ries (Italy); Carboneras (Spain)

18 133
2023-03-06

Sillimanite and Cordierite
in a Granulite from Calabria, Italy
width 2,7 mm

20 72
2022-07-22

Our designers are finished, and... wow 🤩

From left to right, top to bottom:

Kukuyit – , Sparkaro – , DollsEyes – , Sillimanite – .

Let us know what you think 👹

26 269
2021-09-30

Micro-Macro
of beach pebbles at Carboneras, Spain.
Left: sillimanite schist. Right: conglomerate.
Width: macro 6 cm; micro 3-6 mm.

13 65
2021-04-07


A crustal enclave in the dacite of El Hoyazo and some of the fantastic textures that can be seen in there.
These are real, big, natural experiments!

9 72
2021-03-25

Let's not forget
SILLIMANITE is a hot mineral!
Provenance from top left clockwise: Vedrette di Ries (Italy); El Hoyazo (Spain); Ivrea Verbano Zone (Italy); Kola Peninsula (Russia)

16 61
2021-03-15

Earliest photos by (circa 1995)
Charoite Schist; Inclusions in Gabbro; Sillimanite in Cordierite; Bent twins in Marble.

11 43
2020-11-22

today brings us to the Kola Peninsula. A cut pebble of gorgeous felsic granulite in my hand, and three different ways its SILLIMANITE appears under the microscope. Sample kindly provided by Oksana Churakova.

11 69
2020-10-07

✨Speaking of children, here's some doodles of Kyanite and Sillimanite✨

1 3
2020-10-07

From top left clockwise Andalusite, Sillimanite (with cordierite), Agate and Charoite
...because Earth without Art is just eh...

42 86
2020-03-02

redesigning sillimanite now that I caught back up on steven universe :P
maybe a bit much for an su gemsona but shhh

0 2
2018-07-18

Redid some designs! Sillimanite to the left, and Glass to the right.

0 4
2017-05-30