these are my 36 texture drawing, which exploring the visual expression for qualities, features and properties of different materials.
from left to right, top to bottom:
rough, toxic, fragile, conductive,hyaline, atomic
metallic, sheer, seared, elastic, fibrous, flexible
curvilinear, vague, alveolate, tousy, dynamic, mechanical
transparent, translucent, reflective, rocky, sticky, papery
ductile, silky, moist, glossy, harsh, durable
foliated, crystalline, meshy, hairy, shinny, rugged