- Also known as Calcium Carbonate
- Has been used for centuries to extend or thicken oil paint
- Use it to make gouache paint
- Improves strength and opacity of egg tempera
- Use it to make gesso
- Also can be used to adjust paint quality (body, texture, opacity, matte-ness, etc.)
- Recipes on the inside of the envelope
- 2 oz, comes in biodegradable pouch in paper envelope