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Slate Black

PBk19

Alternate Name

Gray Hydrated Aluminum Silicate

Pigment Description

Slate Black or Slate Grey/Gray. We are weirdly enchanted by this color, as it is the basis for several off-the-beaten-path grey earth tones such as French Ardoise Gray. Made of Hydrated Aluminum Silicate or just "slate". It's fun to experiment with mixing the lighter forms of this pigment with lemon yellows. Monona Rossol mentions limits for respirable dust called PNOS, see her work for more.

Resources

PBk19 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com,

Rossol, Monona. The Artist's Complete Health and Safety Guide. New York, NY : Allworth Press, 2001. The book is rather dated, updated information is available from her website.

Stats

Lightfastness

Excellent

Considered ASTM I, excellent.

Transparency

Semi-Opaque

Toxicity

Lower Concern

Treat all pigments and paints with studio safety protocols.

Chemical Name

Powdered Slate, hydrated aluminum silicate

with PBk19 (Slate Black)

No single-pigment Oil found with PBk19

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