Your search for "powder leaf" revealed the following:

Powdery material Real Sand (0.03-0.6mm) Light Brown : Molin Material Non-scale TR-03

Powdery material Kraft Sand (0.1 - 0.3mm) Brown : Molin material Non-scale AF-07

Powdery material Kraft Sand (0.1 - 0.3mm) Dark grey : Molin material Non-scale AF-12

Powdery material Kraft Sand (0.1 - 0.3mm) Grey I : Molin material Non-scale AF-03

Powdery material Kraft Sand (0.1 - 0.3mm) Grey II : Molin Material Non-scale AF-04

Powdery material Kraft Sand (0.1-0.3 mm) Dark brown : Molin material Non-scale AF-13

Powdery material Kraft Sand (0.1 - 0.3mm) White : Molin material Non-scale AF-01

Powdery material Kraft Sand (0.1 - 0.3mm) Light grey : Molin material Non-scale AF-02

Powdery material Kraft Sand (0.1-0.3mm) Ochre : Moline Material Non-scale AF-06

Powdery material Kraft Sand (0.1-0.3 mm) Beige : Molin material Non-scale AF-14

Powdery material Light pink flowers : Mini Nature Materials Non-scale 898-16

Powdery material Fine turf Black earth colour : Woodland material Non-scale T41