What's in the jar?

Sometimes you find unsettling containers of unidentified substances tucked away in a basement or the back of a closet or hidden in a niche under the floorboards. And any magic user or apothecary worth their salt will have at least a dozen jars of mysterious powders right out in the open.

They're full of (1d100):

1 Sand
2 Ashes
3 Cremains
4 Dust
5 Bonemeal
6 Diatomaceous earth
7 Powdered pufferfish
8 Chalk
9 Sawdust
10 Tea
11 Coffee
12 Tobacco
13 Cocaine
14 Flour
15 Tapioca
16 Peppermint
17 Nightshade
18 Yarrow flowers
19 Yew berries
20 Dried moss
21 Fern spores
22 Fungal spores
23 Amadou
24 Iron filings
25 Salt
26 Silver nanoparticles
27 Gold dust
28 Flaked arsenopyrite
29 Sulfur
30 Cinnibar
31 Graphite
32 Charcoal
33 Boneblack
34 Sootblack
35 Gunpowder
36 Crushed glass
37 Dandruff
38 Bloodmeal
39 Dried newt
40 Shed snake skins
41 Dehydrated vampire
42 Mummia
43 Powdered zombie
44 Baked ectoplasm
45 Penicillin
46 Cricket flour
47 Butterfly wing scales
48 Slugs
49 Pulverized clamshell
50 Crushed pearl
51 Protein powder
52 Liver pate
53 Methylated spirits
54 Spit
55 Tears
56 Ultramarine
57 Malachite
58 Rust
59 Galena
60 Flaked obsidian
61 Ink
62 Cuttlebone
63 Milkweed sap
64 Crushed eggshell
65 Glitter
66 Toadskin
67 Nettle
68 Ground cherry pits
69 Black pepper
70 Refined capsaicin
71 Quicklime
72 Ants
73 Dried jellyfish
74 Ginger
75 Cocoa powder
76 Camphor
77 Frankincense
78 Dragon's blood
79 Chili powder
80 Gypsum
81 Nutmeg
82 Brick dust
83 Dried mercury
84 Matchheads
85 Guano
86 Manure
87 Milk
88 Hide glue
89 Sugar
90 Crystallized honey
91 Willow bark
92 Condensed smoke
93 Styrofoam beads
94 Blue frit
95 Black bile
96 Garlic
97 Ground fluorescent lightbulb
98 Chipped plastic
99 Cerebrospinal fluid-spinal cord slurry
100 Minced umbilical cord and placenta